types.go

/*
Copyright 2015 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package v1

import (
	"k8s.io/apimachinery/pkg/api/resource"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/intstr"
)

const (
	// NamespaceDefault means the object is in the default namespace which is applied when not specified by clients
	NamespaceDefault string = "default"
	// NamespaceAll is the default argument to specify on a context when you want to list or filter resources across all namespaces
	NamespaceAll string = ""
	// NamespaceNodeLease is the namespace where we place node lease objects (used for node heartbeats)
	NamespaceNodeLease string = "kube-node-lease"
)

// Volume represents a named volume in a pod that may be accessed by any container in the pod.
type Volume struct {
	// Volume's name.
	// Must be a DNS_LABEL and unique within the pod.
	// More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// VolumeSource represents the location and type of the mounted volume.
	// If not specified, the Volume is implied to be an EmptyDir.
	// This implied behavior is deprecated and will be removed in a future version.
	VolumeSource `json:",inline" protobuf:"bytes,2,opt,name=volumeSource"`
}

// Represents the source of a volume to mount.
// Only one of its members may be specified.
type VolumeSource struct {
	// HostPath represents a pre-existing file or directory on the host
	// machine that is directly exposed to the container. This is generally
	// used for system agents or other privileged things that are allowed
	// to see the host machine. Most containers will NOT need this.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#hostpath
	// ---
	// TODO(jonesdl) We need to restrict who can use host directory mounts and who can/can not
	// mount host directories as read/write.
	// +optional
	HostPath *HostPathVolumeSource `json:"hostPath,omitempty" protobuf:"bytes,1,opt,name=hostPath"`
	// EmptyDir represents a temporary directory that shares a pod's lifetime.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#emptydir
	// +optional
	EmptyDir *EmptyDirVolumeSource `json:"emptyDir,omitempty" protobuf:"bytes,2,opt,name=emptyDir"`
	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	// +optional
	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk,omitempty" protobuf:"bytes,3,opt,name=gcePersistentDisk"`
	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
	// +optional
	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore,omitempty" protobuf:"bytes,4,opt,name=awsElasticBlockStore"`
	// GitRepo represents a git repository at a particular revision.
	// DEPRECATED: GitRepo is deprecated. To provision a container with a git repo, mount an
	// EmptyDir into an InitContainer that clones the repo using git, then mount the EmptyDir
	// into the Pod's container.
	// +optional
	GitRepo *GitRepoVolumeSource `json:"gitRepo,omitempty" protobuf:"bytes,5,opt,name=gitRepo"`
	// Secret represents a secret that should populate this volume.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#secret
	// +optional
	Secret *SecretVolumeSource `json:"secret,omitempty" protobuf:"bytes,6,opt,name=secret"`
	// NFS represents an NFS mount on the host that shares a pod's lifetime
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#nfs
	// +optional
	NFS *NFSVolumeSource `json:"nfs,omitempty" protobuf:"bytes,7,opt,name=nfs"`
	// ISCSI represents an ISCSI Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/iscsi/README.md
	// +optional
	ISCSI *ISCSIVolumeSource `json:"iscsi,omitempty" protobuf:"bytes,8,opt,name=iscsi"`
	// Glusterfs represents a Glusterfs mount on the host that shares a pod's lifetime.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md
	// +optional
	Glusterfs *GlusterfsVolumeSource `json:"glusterfs,omitempty" protobuf:"bytes,9,opt,name=glusterfs"`
	// PersistentVolumeClaimVolumeSource represents a reference to a
	// PersistentVolumeClaim in the same namespace.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	// +optional
	PersistentVolumeClaim *PersistentVolumeClaimVolumeSource `json:"persistentVolumeClaim,omitempty" protobuf:"bytes,10,opt,name=persistentVolumeClaim"`
	// RBD represents a Rados Block Device mount on the host that shares a pod's lifetime.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md
	// +optional
	RBD *RBDVolumeSource `json:"rbd,omitempty" protobuf:"bytes,11,opt,name=rbd"`
	// FlexVolume represents a generic volume resource that is
	// provisioned/attached using an exec based plugin.
	// +optional
	FlexVolume *FlexVolumeSource `json:"flexVolume,omitempty" protobuf:"bytes,12,opt,name=flexVolume"`
	// Cinder represents a cinder volume attached and mounted on kubelets host machine
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	Cinder *CinderVolumeSource `json:"cinder,omitempty" protobuf:"bytes,13,opt,name=cinder"`
	// CephFS represents a Ceph FS mount on the host that shares a pod's lifetime
	// +optional
	CephFS *CephFSVolumeSource `json:"cephfs,omitempty" protobuf:"bytes,14,opt,name=cephfs"`
	// Flocker represents a Flocker volume attached to a kubelet's host machine. This depends on the Flocker control service being running
	// +optional
	Flocker *FlockerVolumeSource `json:"flocker,omitempty" protobuf:"bytes,15,opt,name=flocker"`
	// DownwardAPI represents downward API about the pod that should populate this volume
	// +optional
	DownwardAPI *DownwardAPIVolumeSource `json:"downwardAPI,omitempty" protobuf:"bytes,16,opt,name=downwardAPI"`
	// FC represents a Fibre Channel resource that is attached to a kubelet's host machine and then exposed to the pod.
	// +optional
	FC *FCVolumeSource `json:"fc,omitempty" protobuf:"bytes,17,opt,name=fc"`
	// AzureFile represents an Azure File Service mount on the host and bind mount to the pod.
	// +optional
	AzureFile *AzureFileVolumeSource `json:"azureFile,omitempty" protobuf:"bytes,18,opt,name=azureFile"`
	// ConfigMap represents a configMap that should populate this volume
	// +optional
	ConfigMap *ConfigMapVolumeSource `json:"configMap,omitempty" protobuf:"bytes,19,opt,name=configMap"`
	// VsphereVolume represents a vSphere volume attached and mounted on kubelets host machine
	// +optional
	VsphereVolume *VsphereVirtualDiskVolumeSource `json:"vsphereVolume,omitempty" protobuf:"bytes,20,opt,name=vsphereVolume"`
	// Quobyte represents a Quobyte mount on the host that shares a pod's lifetime
	// +optional
	Quobyte *QuobyteVolumeSource `json:"quobyte,omitempty" protobuf:"bytes,21,opt,name=quobyte"`
	// AzureDisk represents an Azure Data Disk mount on the host and bind mount to the pod.
	// +optional
	AzureDisk *AzureDiskVolumeSource `json:"azureDisk,omitempty" protobuf:"bytes,22,opt,name=azureDisk"`
	// PhotonPersistentDisk represents a PhotonController persistent disk attached and mounted on kubelets host machine
	PhotonPersistentDisk *PhotonPersistentDiskVolumeSource `json:"photonPersistentDisk,omitempty" protobuf:"bytes,23,opt,name=photonPersistentDisk"`
	// Items for all in one resources secrets, configmaps, and downward API
	Projected *ProjectedVolumeSource `json:"projected,omitempty" protobuf:"bytes,26,opt,name=projected"`
	// PortworxVolume represents a portworx volume attached and mounted on kubelets host machine
	// +optional
	PortworxVolume *PortworxVolumeSource `json:"portworxVolume,omitempty" protobuf:"bytes,24,opt,name=portworxVolume"`
	// ScaleIO represents a ScaleIO persistent volume attached and mounted on Kubernetes nodes.
	// +optional
	ScaleIO *ScaleIOVolumeSource `json:"scaleIO,omitempty" protobuf:"bytes,25,opt,name=scaleIO"`
	// StorageOS represents a StorageOS volume attached and mounted on Kubernetes nodes.
	// +optional
	StorageOS *StorageOSVolumeSource `json:"storageos,omitempty" protobuf:"bytes,27,opt,name=storageos"`
}

// PersistentVolumeClaimVolumeSource references the user's PVC in the same namespace.
// This volume finds the bound PV and mounts that volume for the pod. A
// PersistentVolumeClaimVolumeSource is, essentially, a wrapper around another
// type of volume that is owned by someone else (the system).
type PersistentVolumeClaimVolumeSource struct {
	// ClaimName is the name of a PersistentVolumeClaim in the same namespace as the pod using this volume.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	ClaimName string `json:"claimName" protobuf:"bytes,1,opt,name=claimName"`
	// Will force the ReadOnly setting in VolumeMounts.
	// Default false.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,2,opt,name=readOnly"`
}

// PersistentVolumeSource is similar to VolumeSource but meant for the
// administrator who creates PVs. Exactly one of its members must be set.
type PersistentVolumeSource struct {
	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod. Provisioned by an admin.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	// +optional
	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk,omitempty" protobuf:"bytes,1,opt,name=gcePersistentDisk"`
	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
	// +optional
	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore,omitempty" protobuf:"bytes,2,opt,name=awsElasticBlockStore"`
	// HostPath represents a directory on the host.
	// Provisioned by a developer or tester.
	// This is useful for single-node development and testing only!
	// On-host storage is not supported in any way and WILL NOT WORK in a multi-node cluster.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#hostpath
	// +optional
	HostPath *HostPathVolumeSource `json:"hostPath,omitempty" protobuf:"bytes,3,opt,name=hostPath"`
	// Glusterfs represents a Glusterfs volume that is attached to a host and
	// exposed to the pod. Provisioned by an admin.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md
	// +optional
	Glusterfs *GlusterfsPersistentVolumeSource `json:"glusterfs,omitempty" protobuf:"bytes,4,opt,name=glusterfs"`
	// NFS represents an NFS mount on the host. Provisioned by an admin.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#nfs
	// +optional
	NFS *NFSVolumeSource `json:"nfs,omitempty" protobuf:"bytes,5,opt,name=nfs"`
	// RBD represents a Rados Block Device mount on the host that shares a pod's lifetime.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md
	// +optional
	RBD *RBDPersistentVolumeSource `json:"rbd,omitempty" protobuf:"bytes,6,opt,name=rbd"`
	// ISCSI represents an ISCSI Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod. Provisioned by an admin.
	// +optional
	ISCSI *ISCSIPersistentVolumeSource `json:"iscsi,omitempty" protobuf:"bytes,7,opt,name=iscsi"`
	// Cinder represents a cinder volume attached and mounted on kubelets host machine
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	Cinder *CinderPersistentVolumeSource `json:"cinder,omitempty" protobuf:"bytes,8,opt,name=cinder"`
	// CephFS represents a Ceph FS mount on the host that shares a pod's lifetime
	// +optional
	CephFS *CephFSPersistentVolumeSource `json:"cephfs,omitempty" protobuf:"bytes,9,opt,name=cephfs"`
	// FC represents a Fibre Channel resource that is attached to a kubelet's host machine and then exposed to the pod.
	// +optional
	FC *FCVolumeSource `json:"fc,omitempty" protobuf:"bytes,10,opt,name=fc"`
	// Flocker represents a Flocker volume attached to a kubelet's host machine and exposed to the pod for its usage. This depends on the Flocker control service being running
	// +optional
	Flocker *FlockerVolumeSource `json:"flocker,omitempty" protobuf:"bytes,11,opt,name=flocker"`
	// FlexVolume represents a generic volume resource that is
	// provisioned/attached using an exec based plugin.
	// +optional
	FlexVolume *FlexPersistentVolumeSource `json:"flexVolume,omitempty" protobuf:"bytes,12,opt,name=flexVolume"`
	// AzureFile represents an Azure File Service mount on the host and bind mount to the pod.
	// +optional
	AzureFile *AzureFilePersistentVolumeSource `json:"azureFile,omitempty" protobuf:"bytes,13,opt,name=azureFile"`
	// VsphereVolume represents a vSphere volume attached and mounted on kubelets host machine
	// +optional
	VsphereVolume *VsphereVirtualDiskVolumeSource `json:"vsphereVolume,omitempty" protobuf:"bytes,14,opt,name=vsphereVolume"`
	// Quobyte represents a Quobyte mount on the host that shares a pod's lifetime
	// +optional
	Quobyte *QuobyteVolumeSource `json:"quobyte,omitempty" protobuf:"bytes,15,opt,name=quobyte"`
	// AzureDisk represents an Azure Data Disk mount on the host and bind mount to the pod.
	// +optional
	AzureDisk *AzureDiskVolumeSource `json:"azureDisk,omitempty" protobuf:"bytes,16,opt,name=azureDisk"`
	// PhotonPersistentDisk represents a PhotonController persistent disk attached and mounted on kubelets host machine
	PhotonPersistentDisk *PhotonPersistentDiskVolumeSource `json:"photonPersistentDisk,omitempty" protobuf:"bytes,17,opt,name=photonPersistentDisk"`
	// PortworxVolume represents a portworx volume attached and mounted on kubelets host machine
	// +optional
	PortworxVolume *PortworxVolumeSource `json:"portworxVolume,omitempty" protobuf:"bytes,18,opt,name=portworxVolume"`
	// ScaleIO represents a ScaleIO persistent volume attached and mounted on Kubernetes nodes.
	// +optional
	ScaleIO *ScaleIOPersistentVolumeSource `json:"scaleIO,omitempty" protobuf:"bytes,19,opt,name=scaleIO"`
	// Local represents directly-attached storage with node affinity
	// +optional
	Local *LocalVolumeSource `json:"local,omitempty" protobuf:"bytes,20,opt,name=local"`
	// StorageOS represents a StorageOS volume that is attached to the kubelet's host machine and mounted into the pod
	// More info: https://releases.k8s.io/HEAD/examples/volumes/storageos/README.md
	// +optional
	StorageOS *StorageOSPersistentVolumeSource `json:"storageos,omitempty" protobuf:"bytes,21,opt,name=storageos"`
	// CSI represents storage that handled by an external CSI driver (Beta feature).
	// +optional
	CSI *CSIPersistentVolumeSource `json:"csi,omitempty" protobuf:"bytes,22,opt,name=csi"`
}

const (
	// BetaStorageClassAnnotation represents the beta/previous StorageClass annotation.
	// It's currently still used and will be held for backwards compatibility
	BetaStorageClassAnnotation = "volume.beta.kubernetes.io/storage-class"

	// MountOptionAnnotation defines mount option annotation used in PVs
	MountOptionAnnotation = "volume.beta.kubernetes.io/mount-options"
)

// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// PersistentVolume (PV) is a storage resource provisioned by an administrator.
// It is analogous to a node.
// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes
type PersistentVolume struct {
	metav1.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`

	// Spec defines a specification of a persistent volume owned by the cluster.
	// Provisioned by an administrator.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistent-volumes
	// +optional
	Spec PersistentVolumeSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`

	// Status represents the current information/status for the persistent volume.
	// Populated by the system.
	// Read-only.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistent-volumes
	// +optional
	Status PersistentVolumeStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}

// PersistentVolumeSpec is the specification of a persistent volume.
type PersistentVolumeSpec struct {
	// A description of the persistent volume's resources and capacity.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#capacity
	// +optional
	Capacity ResourceList `json:"capacity,omitempty" protobuf:"bytes,1,rep,name=capacity,casttype=ResourceList,castkey=ResourceName"`
	// The actual volume backing the persistent volume.
	PersistentVolumeSource `json:",inline" protobuf:"bytes,2,opt,name=persistentVolumeSource"`
	// AccessModes contains all ways the volume can be mounted.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes
	// +optional
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty" protobuf:"bytes,3,rep,name=accessModes,casttype=PersistentVolumeAccessMode"`
	// ClaimRef is part of a bi-directional binding between PersistentVolume and PersistentVolumeClaim.
	// Expected to be non-nil when bound.
	// claim.VolumeName is the authoritative bind between PV and PVC.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#binding
	// +optional
	ClaimRef *ObjectReference `json:"claimRef,omitempty" protobuf:"bytes,4,opt,name=claimRef"`
	// What happens to a persistent volume when released from its claim.
	// Valid options are Retain (default for manually created PersistentVolumes), Delete (default
	// for dynamically provisioned PersistentVolumes), and Recycle (deprecated).
	// Recycle must be supported by the volume plugin underlying this PersistentVolume.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#reclaiming
	// +optional
	PersistentVolumeReclaimPolicy PersistentVolumeReclaimPolicy `json:"persistentVolumeReclaimPolicy,omitempty" protobuf:"bytes,5,opt,name=persistentVolumeReclaimPolicy,casttype=PersistentVolumeReclaimPolicy"`
	// Name of StorageClass to which this persistent volume belongs. Empty value
	// means that this volume does not belong to any StorageClass.
	// +optional
	StorageClassName string `json:"storageClassName,omitempty" protobuf:"bytes,6,opt,name=storageClassName"`
	// A list of mount options, e.g. ["ro", "soft"]. Not validated - mount will
	// simply fail if one is invalid.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes/#mount-options
	// +optional
	MountOptions []string `json:"mountOptions,omitempty" protobuf:"bytes,7,opt,name=mountOptions"`
	// volumeMode defines if a volume is intended to be used with a formatted filesystem
	// or to remain in raw block state. Value of Filesystem is implied when not included in spec.
	// This is a beta feature.
	// +optional
	VolumeMode *PersistentVolumeMode `json:"volumeMode,omitempty" protobuf:"bytes,8,opt,name=volumeMode,casttype=PersistentVolumeMode"`
	// NodeAffinity defines constraints that limit what nodes this volume can be accessed from.
	// This field influences the scheduling of pods that use this volume.
	// +optional
	NodeAffinity *VolumeNodeAffinity `json:"nodeAffinity,omitempty" protobuf:"bytes,9,opt,name=nodeAffinity"`
}

// VolumeNodeAffinity defines constraints that limit what nodes this volume can be accessed from.
type VolumeNodeAffinity struct {
	// Required specifies hard node constraints that must be met.
	Required *NodeSelector `json:"required,omitempty" protobuf:"bytes,1,opt,name=required"`
}

// PersistentVolumeReclaimPolicy describes a policy for end-of-life maintenance of persistent volumes.
type PersistentVolumeReclaimPolicy string

const (
	// PersistentVolumeReclaimRecycle means the volume will be recycled back into the pool of unbound persistent volumes on release from its claim.
	// The volume plugin must support Recycling.
	PersistentVolumeReclaimRecycle PersistentVolumeReclaimPolicy = "Recycle"
	// PersistentVolumeReclaimDelete means the volume will be deleted from Kubernetes on release from its claim.
	// The volume plugin must support Deletion.
	PersistentVolumeReclaimDelete PersistentVolumeReclaimPolicy = "Delete"
	// PersistentVolumeReclaimRetain means the volume will be left in its current phase (Released) for manual reclamation by the administrator.
	// The default policy is Retain.
	PersistentVolumeReclaimRetain PersistentVolumeReclaimPolicy = "Retain"
)

// PersistentVolumeMode describes how a volume is intended to be consumed, either Block or Filesystem.
type PersistentVolumeMode string

const (
	// PersistentVolumeBlock means the volume will not be formatted with a filesystem and will remain a raw block device.
	PersistentVolumeBlock PersistentVolumeMode = "Block"
	// PersistentVolumeFilesystem means the volume will be or is formatted with a filesystem.
	PersistentVolumeFilesystem PersistentVolumeMode = "Filesystem"
)

// PersistentVolumeStatus is the current status of a persistent volume.
type PersistentVolumeStatus struct {
	// Phase indicates if a volume is available, bound to a claim, or released by a claim.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#phase
	// +optional
	Phase PersistentVolumePhase `json:"phase,omitempty" protobuf:"bytes,1,opt,name=phase,casttype=PersistentVolumePhase"`
	// A human-readable message indicating details about why the volume is in this state.
	// +optional
	Message string `json:"message,omitempty" protobuf:"bytes,2,opt,name=message"`
	// Reason is a brief CamelCase string that describes any failure and is meant
	// for machine parsing and tidy display in the CLI.
	// +optional
	Reason string `json:"reason,omitempty" protobuf:"bytes,3,opt,name=reason"`
}

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// PersistentVolumeList is a list of PersistentVolume items.
type PersistentVolumeList struct {
	metav1.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
	// List of persistent volumes.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes
	Items []PersistentVolume `json:"items" protobuf:"bytes,2,rep,name=items"`
}

// +genclient
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// PersistentVolumeClaim is a user's request for and claim to a persistent volume
type PersistentVolumeClaim struct {
	metav1.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`

	// Spec defines the desired characteristics of a volume requested by a pod author.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	// +optional
	Spec PersistentVolumeClaimSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`

	// Status represents the current information/status of a persistent volume claim.
	// Read-only.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	// +optional
	Status PersistentVolumeClaimStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// PersistentVolumeClaimList is a list of PersistentVolumeClaim items.
type PersistentVolumeClaimList struct {
	metav1.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
	// A list of persistent volume claims.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
	Items []PersistentVolumeClaim `json:"items" protobuf:"bytes,2,rep,name=items"`
}

// PersistentVolumeClaimSpec describes the common attributes of storage devices
// and allows a Source for provider-specific attributes
type PersistentVolumeClaimSpec struct {
	// AccessModes contains the desired access modes the volume should have.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes-1
	// +optional
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty" protobuf:"bytes,1,rep,name=accessModes,casttype=PersistentVolumeAccessMode"`
	// A label query over volumes to consider for binding.
	// +optional
	Selector *metav1.LabelSelector `json:"selector,omitempty" protobuf:"bytes,4,opt,name=selector"`
	// Resources represents the minimum resources the volume should have.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#resources
	// +optional
	Resources ResourceRequirements `json:"resources,omitempty" protobuf:"bytes,2,opt,name=resources"`
	// VolumeName is the binding reference to the PersistentVolume backing this claim.
	// +optional
	VolumeName string `json:"volumeName,omitempty" protobuf:"bytes,3,opt,name=volumeName"`
	// Name of the StorageClass required by the claim.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#class-1
	// +optional
	StorageClassName *string `json:"storageClassName,omitempty" protobuf:"bytes,5,opt,name=storageClassName"`
	// volumeMode defines what type of volume is required by the claim.
	// Value of Filesystem is implied when not included in claim spec.
	// This is a beta feature.
	// +optional
	VolumeMode *PersistentVolumeMode `json:"volumeMode,omitempty" protobuf:"bytes,6,opt,name=volumeMode,casttype=PersistentVolumeMode"`
	// This field requires the VolumeSnapshotDataSource alpha feature gate to be
	// enabled and currently VolumeSnapshot is the only supported data source.
	// If the provisioner can support VolumeSnapshot data source, it will create
	// a new volume and data will be restored to the volume at the same time.
	// If the provisioner does not support VolumeSnapshot data source, volume will
	// not be created and the failure will be reported as an event.
	// In the future, we plan to support more data source types and the behavior
	// of the provisioner may change.
	// +optional
	DataSource *TypedLocalObjectReference `json:"dataSource" protobuf:"bytes,7,opt,name=dataSource"`
}

// PersistentVolumeClaimConditionType is a valid value of PersistentVolumeClaimCondition.Type
type PersistentVolumeClaimConditionType string

const (
	// PersistentVolumeClaimResizing - a user trigger resize of pvc has been started
	PersistentVolumeClaimResizing PersistentVolumeClaimConditionType = "Resizing"
	// PersistentVolumeClaimFileSystemResizePending - controller resize is finished and a file system resize is pending on node
	PersistentVolumeClaimFileSystemResizePending PersistentVolumeClaimConditionType = "FileSystemResizePending"
)

// PersistentVolumeClaimCondition contails details about state of pvc
type PersistentVolumeClaimCondition struct {
	Type   PersistentVolumeClaimConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=PersistentVolumeClaimConditionType"`
	Status ConditionStatus                    `json:"status" protobuf:"bytes,2,opt,name=status,casttype=ConditionStatus"`
	// Last time we probed the condition.
	// +optional
	LastProbeTime metav1.Time `json:"lastProbeTime,omitempty" protobuf:"bytes,3,opt,name=lastProbeTime"`
	// Last time the condition transitioned from one status to another.
	// +optional
	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty" protobuf:"bytes,4,opt,name=lastTransitionTime"`
	// Unique, this should be a short, machine understandable string that gives the reason
	// for condition's last transition. If it reports "ResizeStarted" that means the underlying
	// persistent volume is being resized.
	// +optional
	Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
	// Human-readable message indicating details about last transition.
	// +optional
	Message string `json:"message,omitempty" protobuf:"bytes,6,opt,name=message"`
}

// PersistentVolumeClaimStatus is the current status of a persistent volume claim.
type PersistentVolumeClaimStatus struct {
	// Phase represents the current phase of PersistentVolumeClaim.
	// +optional
	Phase PersistentVolumeClaimPhase `json:"phase,omitempty" protobuf:"bytes,1,opt,name=phase,casttype=PersistentVolumeClaimPhase"`
	// AccessModes contains the actual access modes the volume backing the PVC has.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes-1
	// +optional
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty" protobuf:"bytes,2,rep,name=accessModes,casttype=PersistentVolumeAccessMode"`
	// Represents the actual resources of the underlying volume.
	// +optional
	Capacity ResourceList `json:"capacity,omitempty" protobuf:"bytes,3,rep,name=capacity,casttype=ResourceList,castkey=ResourceName"`
	// Current Condition of persistent volume claim. If underlying persistent volume is being
	// resized then the Condition will be set to 'ResizeStarted'.
	// +optional
	// +patchMergeKey=type
	// +patchStrategy=merge
	Conditions []PersistentVolumeClaimCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,4,rep,name=conditions"`
}

type PersistentVolumeAccessMode string

const (
	// can be mounted read/write mode to exactly 1 host
	ReadWriteOnce PersistentVolumeAccessMode = "ReadWriteOnce"
	// can be mounted in read-only mode to many hosts
	ReadOnlyMany PersistentVolumeAccessMode = "ReadOnlyMany"
	// can be mounted in read/write mode to many hosts
	ReadWriteMany PersistentVolumeAccessMode = "ReadWriteMany"
)

type PersistentVolumePhase string

const (
	// used for PersistentVolumes that are not available
	VolumePending PersistentVolumePhase = "Pending"
	// used for PersistentVolumes that are not yet bound
	// Available volumes are held by the binder and matched to PersistentVolumeClaims
	VolumeAvailable PersistentVolumePhase = "Available"
	// used for PersistentVolumes that are bound
	VolumeBound PersistentVolumePhase = "Bound"
	// used for PersistentVolumes where the bound PersistentVolumeClaim was deleted
	// released volumes must be recycled before becoming available again
	// this phase is used by the persistent volume claim binder to signal to another process to reclaim the resource
	VolumeReleased PersistentVolumePhase = "Released"
	// used for PersistentVolumes that failed to be correctly recycled or deleted after being released from a claim
	VolumeFailed PersistentVolumePhase = "Failed"
)

type PersistentVolumeClaimPhase string

const (
	// used for PersistentVolumeClaims that are not yet bound
	ClaimPending PersistentVolumeClaimPhase = "Pending"
	// used for PersistentVolumeClaims that are bound
	ClaimBound PersistentVolumeClaimPhase = "Bound"
	// used for PersistentVolumeClaims that lost their underlying
	// PersistentVolume. The claim was bound to a PersistentVolume and this
	// volume does not exist any longer and all data on it was lost.
	ClaimLost PersistentVolumeClaimPhase = "Lost"
)

type HostPathType string

const (
	// For backwards compatible, leave it empty if unset
	HostPathUnset HostPathType = ""
	// If nothing exists at the given path, an empty directory will be created there
	// as needed with file mode 0755, having the same group and ownership with Kubelet.
	HostPathDirectoryOrCreate HostPathType = "DirectoryOrCreate"
	// A directory must exist at the given path
	HostPathDirectory HostPathType = "Directory"
	// If nothing exists at the given path, an empty file will be created there
	// as needed with file mode 0644, having the same group and ownership with Kubelet.
	HostPathFileOrCreate HostPathType = "FileOrCreate"
	// A file must exist at the given path
	HostPathFile HostPathType = "File"
	// A UNIX socket must exist at the given path
	HostPathSocket HostPathType = "Socket"
	// A character device must exist at the given path
	HostPathCharDev HostPathType = "CharDevice"
	// A block device must exist at the given path
	HostPathBlockDev HostPathType = "BlockDevice"
)

// Represents a host path mapped into a pod.
// Host path volumes do not support ownership management or SELinux relabeling.
type HostPathVolumeSource struct {
	// Path of the directory on the host.
	// If the path is a symlink, it will follow the link to the real path.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#hostpath
	Path string `json:"path" protobuf:"bytes,1,opt,name=path"`
	// Type for HostPath Volume
	// Defaults to ""
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#hostpath
	// +optional
	Type *HostPathType `json:"type,omitempty" protobuf:"bytes,2,opt,name=type"`
}

// Represents an empty directory for a pod.
// Empty directory volumes support ownership management and SELinux relabeling.
type EmptyDirVolumeSource struct {
	// What type of storage medium should back this directory.
	// The default is "" which means to use the node's default medium.
	// Must be an empty string (default) or Memory.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#emptydir
	// +optional
	Medium StorageMedium `json:"medium,omitempty" protobuf:"bytes,1,opt,name=medium,casttype=StorageMedium"`
	// Total amount of local storage required for this EmptyDir volume.
	// The size limit is also applicable for memory medium.
	// The maximum usage on memory medium EmptyDir would be the minimum value between
	// the SizeLimit specified here and the sum of memory limits of all containers in a pod.
	// The default is nil which means that the limit is undefined.
	// More info: http://kubernetes.io/docs/user-guide/volumes#emptydir
	// +optional
	SizeLimit *resource.Quantity `json:"sizeLimit,omitempty" protobuf:"bytes,2,opt,name=sizeLimit"`
}

// Represents a Glusterfs mount that lasts the lifetime of a pod.
// Glusterfs volumes do not support ownership management or SELinux relabeling.
type GlusterfsVolumeSource struct {
	// EndpointsName is the endpoint name that details Glusterfs topology.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	EndpointsName string `json:"endpoints" protobuf:"bytes,1,opt,name=endpoints"`

	// Path is the Glusterfs volume path.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	Path string `json:"path" protobuf:"bytes,2,opt,name=path"`

	// ReadOnly here will force the Glusterfs volume to be mounted with read-only permissions.
	// Defaults to false.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
}

// Represents a Glusterfs mount that lasts the lifetime of a pod.
// Glusterfs volumes do not support ownership management or SELinux relabeling.
type GlusterfsPersistentVolumeSource struct {
	// EndpointsName is the endpoint name that details Glusterfs topology.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	EndpointsName string `json:"endpoints" protobuf:"bytes,1,opt,name=endpoints"`

	// Path is the Glusterfs volume path.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	Path string `json:"path" protobuf:"bytes,2,opt,name=path"`

	// ReadOnly here will force the Glusterfs volume to be mounted with read-only permissions.
	// Defaults to false.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`

	// EndpointsNamespace is the namespace that contains Glusterfs endpoint.
	// If this field is empty, the EndpointNamespace defaults to the same namespace as the bound PVC.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
	// +optional
	EndpointsNamespace *string `json:"endpointsNamespace,omitempty" protobuf:"bytes,4,opt,name=endpointsNamespace"`
}

// Represents a Rados Block Device mount that lasts the lifetime of a pod.
// RBD volumes support ownership management and SELinux relabeling.
type RBDVolumeSource struct {
	// A collection of Ceph monitors.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	CephMonitors []string `json:"monitors" protobuf:"bytes,1,rep,name=monitors"`
	// The rados image name.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	RBDImage string `json:"image" protobuf:"bytes,2,opt,name=image"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#rbd
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,3,opt,name=fsType"`
	// The rados pool name.
	// Default is rbd.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	RBDPool string `json:"pool,omitempty" protobuf:"bytes,4,opt,name=pool"`
	// The rados user name.
	// Default is admin.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	RadosUser string `json:"user,omitempty" protobuf:"bytes,5,opt,name=user"`
	// Keyring is the path to key ring for RBDUser.
	// Default is /etc/ceph/keyring.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	Keyring string `json:"keyring,omitempty" protobuf:"bytes,6,opt,name=keyring"`
	// SecretRef is name of the authentication secret for RBDUser. If provided
	// overrides keyring.
	// Default is nil.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,7,opt,name=secretRef"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,8,opt,name=readOnly"`
}

// Represents a Rados Block Device mount that lasts the lifetime of a pod.
// RBD volumes support ownership management and SELinux relabeling.
type RBDPersistentVolumeSource struct {
	// A collection of Ceph monitors.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	CephMonitors []string `json:"monitors" protobuf:"bytes,1,rep,name=monitors"`
	// The rados image name.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	RBDImage string `json:"image" protobuf:"bytes,2,opt,name=image"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#rbd
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,3,opt,name=fsType"`
	// The rados pool name.
	// Default is rbd.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	RBDPool string `json:"pool,omitempty" protobuf:"bytes,4,opt,name=pool"`
	// The rados user name.
	// Default is admin.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	RadosUser string `json:"user,omitempty" protobuf:"bytes,5,opt,name=user"`
	// Keyring is the path to key ring for RBDUser.
	// Default is /etc/ceph/keyring.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	Keyring string `json:"keyring,omitempty" protobuf:"bytes,6,opt,name=keyring"`
	// SecretRef is name of the authentication secret for RBDUser. If provided
	// overrides keyring.
	// Default is nil.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	SecretRef *SecretReference `json:"secretRef,omitempty" protobuf:"bytes,7,opt,name=secretRef"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/rbd/README.md#how-to-use-it
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,8,opt,name=readOnly"`
}

// Represents a cinder volume resource in Openstack.
// A Cinder volume must exist before mounting to a container.
// The volume must also be in the same region as the kubelet.
// Cinder volumes support ownership management and SELinux relabeling.
type CinderVolumeSource struct {
	// volume id used to identify the volume in cinder
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	VolumeID string `json:"volumeID" protobuf:"bytes,1,opt,name=volumeID"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
	// Optional: points to a secret object containing parameters used to connect
	// to OpenStack.
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,4,opt,name=secretRef"`
}

// Represents a cinder volume resource in Openstack.
// A Cinder volume must exist before mounting to a container.
// The volume must also be in the same region as the kubelet.
// Cinder volumes support ownership management and SELinux relabeling.
type CinderPersistentVolumeSource struct {
	// volume id used to identify the volume in cinder
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	VolumeID string `json:"volumeID" protobuf:"bytes,1,opt,name=volumeID"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: https://releases.k8s.io/HEAD/examples/mysql-cinder-pd/README.md
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
	// Optional: points to a secret object containing parameters used to connect
	// to OpenStack.
	// +optional
	SecretRef *SecretReference `json:"secretRef,omitempty" protobuf:"bytes,4,opt,name=secretRef"`
}

// Represents a Ceph Filesystem mount that lasts the lifetime of a pod
// Cephfs volumes do not support ownership management or SELinux relabeling.
type CephFSVolumeSource struct {
	// Required: Monitors is a collection of Ceph monitors
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	Monitors []string `json:"monitors" protobuf:"bytes,1,rep,name=monitors"`
	// Optional: Used as the mounted root, rather than the full Ceph tree, default is /
	// +optional
	Path string `json:"path,omitempty" protobuf:"bytes,2,opt,name=path"`
	// Optional: User is the rados user name, default is admin
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	User string `json:"user,omitempty" protobuf:"bytes,3,opt,name=user"`
	// Optional: SecretFile is the path to key ring for User, default is /etc/ceph/user.secret
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	SecretFile string `json:"secretFile,omitempty" protobuf:"bytes,4,opt,name=secretFile"`
	// Optional: SecretRef is reference to the authentication secret for User, default is empty.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,5,opt,name=secretRef"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,6,opt,name=readOnly"`
}

// SecretReference represents a Secret Reference. It has enough information to retrieve secret
// in any namespace
type SecretReference struct {
	// Name is unique within a namespace to reference a secret resource.
	// +optional
	Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
	// Namespace defines the space within which the secret name must be unique.
	// +optional
	Namespace string `json:"namespace,omitempty" protobuf:"bytes,2,opt,name=namespace"`
}

// Represents a Ceph Filesystem mount that lasts the lifetime of a pod
// Cephfs volumes do not support ownership management or SELinux relabeling.
type CephFSPersistentVolumeSource struct {
	// Required: Monitors is a collection of Ceph monitors
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	Monitors []string `json:"monitors" protobuf:"bytes,1,rep,name=monitors"`
	// Optional: Used as the mounted root, rather than the full Ceph tree, default is /
	// +optional
	Path string `json:"path,omitempty" protobuf:"bytes,2,opt,name=path"`
	// Optional: User is the rados user name, default is admin
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	User string `json:"user,omitempty" protobuf:"bytes,3,opt,name=user"`
	// Optional: SecretFile is the path to key ring for User, default is /etc/ceph/user.secret
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	SecretFile string `json:"secretFile,omitempty" protobuf:"bytes,4,opt,name=secretFile"`
	// Optional: SecretRef is reference to the authentication secret for User, default is empty.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	SecretRef *SecretReference `json:"secretRef,omitempty" protobuf:"bytes,5,opt,name=secretRef"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: https://releases.k8s.io/HEAD/examples/volumes/cephfs/README.md#how-to-use-it
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,6,opt,name=readOnly"`
}

// Represents a Flocker volume mounted by the Flocker agent.
// One and only one of datasetName and datasetUUID should be set.
// Flocker volumes do not support ownership management or SELinux relabeling.
type FlockerVolumeSource struct {
	// Name of the dataset stored as metadata -> name on the dataset for Flocker
	// should be considered as deprecated
	// +optional
	DatasetName string `json:"datasetName,omitempty" protobuf:"bytes,1,opt,name=datasetName"`
	// UUID of the dataset. This is unique identifier of a Flocker dataset
	// +optional
	DatasetUUID string `json:"datasetUUID,omitempty" protobuf:"bytes,2,opt,name=datasetUUID"`
}

// StorageMedium defines ways that storage can be allocated to a volume.
type StorageMedium string

const (
	StorageMediumDefault   StorageMedium = ""          // use whatever the default is for the node, assume anything we don't explicitly handle is this
	StorageMediumMemory    StorageMedium = "Memory"    // use memory (e.g. tmpfs on linux)
	StorageMediumHugePages StorageMedium = "HugePages" // use hugepages
)

// Protocol defines network protocols supported for things like container ports.
type Protocol string

const (
	// ProtocolTCP is the TCP protocol.
	ProtocolTCP Protocol = "TCP"
	// ProtocolUDP is the UDP protocol.
	ProtocolUDP Protocol = "UDP"
	// ProtocolSCTP is the SCTP protocol.
	ProtocolSCTP Protocol = "SCTP"
)

// Represents a Persistent Disk resource in Google Compute Engine.
//
// A GCE PD must exist before mounting to a container. The disk must
// also be in the same GCE project and zone as the kubelet. A GCE PD
// can only be mounted as read/write once or read-only many times. GCE
// PDs support ownership management and SELinux relabeling.
type GCEPersistentDiskVolumeSource struct {
	// Unique name of the PD resource in GCE. Used to identify the disk in GCE.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	PDName string `json:"pdName" protobuf:"bytes,1,opt,name=pdName"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// The partition in the volume that you want to mount.
	// If omitted, the default is to mount by volume name.
	// Examples: For volume /dev/sda1, you specify the partition as "1".
	// Similarly, the volume partition for /dev/sda is "0" (or you can leave the property empty).
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	// +optional
	Partition int32 `json:"partition,omitempty" protobuf:"varint,3,opt,name=partition"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#gcepersistentdisk
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
}

// Represents a Quobyte mount that lasts the lifetime of a pod.
// Quobyte volumes do not support ownership management or SELinux relabeling.
type QuobyteVolumeSource struct {
	// Registry represents a single or multiple Quobyte Registry services
	// specified as a string as host:port pair (multiple entries are separated with commas)
	// which acts as the central registry for volumes
	Registry string `json:"registry" protobuf:"bytes,1,opt,name=registry"`

	// Volume is a string that references an already created Quobyte volume by name.
	Volume string `json:"volume" protobuf:"bytes,2,opt,name=volume"`

	// ReadOnly here will force the Quobyte volume to be mounted with read-only permissions.
	// Defaults to false.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`

	// User to map volume access to
	// Defaults to serivceaccount user
	// +optional
	User string `json:"user,omitempty" protobuf:"bytes,4,opt,name=user"`

	// Group to map volume access to
	// Default is no group
	// +optional
	Group string `json:"group,omitempty" protobuf:"bytes,5,opt,name=group"`
}

// FlexPersistentVolumeSource represents a generic persistent volume resource that is
// provisioned/attached using an exec based plugin.
type FlexPersistentVolumeSource struct {
	// Driver is the name of the driver to use for this volume.
	Driver string `json:"driver" protobuf:"bytes,1,opt,name=driver"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". The default filesystem depends on FlexVolume script.
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Optional: SecretRef is reference to the secret object containing
	// sensitive information to pass to the plugin scripts. This may be
	// empty if no secret object is specified. If the secret object
	// contains more than one secret, all secrets are passed to the plugin
	// scripts.
	// +optional
	SecretRef *SecretReference `json:"secretRef,omitempty" protobuf:"bytes,3,opt,name=secretRef"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
	// Optional: Extra command options if any.
	// +optional
	Options map[string]string `json:"options,omitempty" protobuf:"bytes,5,rep,name=options"`
}

// FlexVolume represents a generic volume resource that is
// provisioned/attached using an exec based plugin.
type FlexVolumeSource struct {
	// Driver is the name of the driver to use for this volume.
	Driver string `json:"driver" protobuf:"bytes,1,opt,name=driver"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". The default filesystem depends on FlexVolume script.
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Optional: SecretRef is reference to the secret object containing
	// sensitive information to pass to the plugin scripts. This may be
	// empty if no secret object is specified. If the secret object
	// contains more than one secret, all secrets are passed to the plugin
	// scripts.
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,3,opt,name=secretRef"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
	// Optional: Extra command options if any.
	// +optional
	Options map[string]string `json:"options,omitempty" protobuf:"bytes,5,rep,name=options"`
}

// Represents a Persistent Disk resource in AWS.
//
// An AWS EBS disk must exist before mounting to a container. The disk
// must also be in the same AWS zone as the kubelet. An AWS EBS disk
// can only be mounted as read/write once. AWS EBS volumes support
// ownership management and SELinux relabeling.
type AWSElasticBlockStoreVolumeSource struct {
	// Unique ID of the persistent disk resource in AWS (Amazon EBS volume).
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
	VolumeID string `json:"volumeID" protobuf:"bytes,1,opt,name=volumeID"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// The partition in the volume that you want to mount.
	// If omitted, the default is to mount by volume name.
	// Examples: For volume /dev/sda1, you specify the partition as "1".
	// Similarly, the volume partition for /dev/sda is "0" (or you can leave the property empty).
	// +optional
	Partition int32 `json:"partition,omitempty" protobuf:"varint,3,opt,name=partition"`
	// Specify "true" to force and set the ReadOnly property in VolumeMounts to "true".
	// If omitted, the default is "false".
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#awselasticblockstore
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
}

// Represents a volume that is populated with the contents of a git repository.
// Git repo volumes do not support ownership management.
// Git repo volumes support SELinux relabeling.
//
// DEPRECATED: GitRepo is deprecated. To provision a container with a git repo, mount an
// EmptyDir into an InitContainer that clones the repo using git, then mount the EmptyDir
// into the Pod's container.
type GitRepoVolumeSource struct {
	// Repository URL
	Repository string `json:"repository" protobuf:"bytes,1,opt,name=repository"`
	// Commit hash for the specified revision.
	// +optional
	Revision string `json:"revision,omitempty" protobuf:"bytes,2,opt,name=revision"`
	// Target directory name.
	// Must not contain or start with '..'.  If '.' is supplied, the volume directory will be the
	// git repository.  Otherwise, if specified, the volume will contain the git repository in
	// the subdirectory with the given name.
	// +optional
	Directory string `json:"directory,omitempty" protobuf:"bytes,3,opt,name=directory"`
}

// Adapts a Secret into a volume.
//
// The contents of the target Secret's Data field will be presented in a volume
// as files using the keys in the Data field as the file names.
// Secret volumes support ownership management and SELinux relabeling.
type SecretVolumeSource struct {
	// Name of the secret in the pod's namespace to use.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#secret
	// +optional
	SecretName string `json:"secretName,omitempty" protobuf:"bytes,1,opt,name=secretName"`
	// If unspecified, each key-value pair in the Data field of the referenced
	// Secret will be projected into the volume as a file whose name is the
	// key and content is the value. If specified, the listed keys will be
	// projected into the specified paths, and unlisted keys will not be
	// present. If a key is specified which is not present in the Secret,
	// the volume setup will error unless it is marked optional. Paths must be
	// relative and may not contain the '..' path or start with '..'.
	// +optional
	Items []KeyToPath `json:"items,omitempty" protobuf:"bytes,2,rep,name=items"`
	// Optional: mode bits to use on created files by default. Must be a
	// value between 0 and 0777. Defaults to 0644.
	// Directories within the path are not affected by this setting.
	// This might be in conflict with other options that affect the file
	// mode, like fsGroup, and the result can be other mode bits set.
	// +optional
	DefaultMode *int32 `json:"defaultMode,omitempty" protobuf:"bytes,3,opt,name=defaultMode"`
	// Specify whether the Secret or it's keys must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,4,opt,name=optional"`
}

const (
	SecretVolumeSourceDefaultMode int32 = 0644
)

// Adapts a secret into a projected volume.
//
// The contents of the target Secret's Data field will be presented in a
// projected volume as files using the keys in the Data field as the file names.
// Note that this is identical to a secret volume source without the default
// mode.
type SecretProjection struct {
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// If unspecified, each key-value pair in the Data field of the referenced
	// Secret will be projected into the volume as a file whose name is the
	// key and content is the value. If specified, the listed keys will be
	// projected into the specified paths, and unlisted keys will not be
	// present. If a key is specified which is not present in the Secret,
	// the volume setup will error unless it is marked optional. Paths must be
	// relative and may not contain the '..' path or start with '..'.
	// +optional
	Items []KeyToPath `json:"items,omitempty" protobuf:"bytes,2,rep,name=items"`
	// Specify whether the Secret or its key must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,4,opt,name=optional"`
}

// Represents an NFS mount that lasts the lifetime of a pod.
// NFS volumes do not support ownership management or SELinux relabeling.
type NFSVolumeSource struct {
	// Server is the hostname or IP address of the NFS server.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#nfs
	Server string `json:"server" protobuf:"bytes,1,opt,name=server"`

	// Path that is exported by the NFS server.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#nfs
	Path string `json:"path" protobuf:"bytes,2,opt,name=path"`

	// ReadOnly here will force
	// the NFS export to be mounted with read-only permissions.
	// Defaults to false.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#nfs
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
}

// Represents an ISCSI disk.
// ISCSI volumes can only be mounted as read/write once.
// ISCSI volumes support ownership management and SELinux relabeling.
type ISCSIVolumeSource struct {
	// iSCSI Target Portal. The Portal is either an IP or ip_addr:port if the port
	// is other than default (typically TCP ports 860 and 3260).
	TargetPortal string `json:"targetPortal" protobuf:"bytes,1,opt,name=targetPortal"`
	// Target iSCSI Qualified Name.
	IQN string `json:"iqn" protobuf:"bytes,2,opt,name=iqn"`
	// iSCSI Target Lun number.
	Lun int32 `json:"lun" protobuf:"varint,3,opt,name=lun"`
	// iSCSI Interface Name that uses an iSCSI transport.
	// Defaults to 'default' (tcp).
	// +optional
	ISCSIInterface string `json:"iscsiInterface,omitempty" protobuf:"bytes,4,opt,name=iscsiInterface"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#iscsi
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,5,opt,name=fsType"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,6,opt,name=readOnly"`
	// iSCSI Target Portal List. The portal is either an IP or ip_addr:port if the port
	// is other than default (typically TCP ports 860 and 3260).
	// +optional
	Portals []string `json:"portals,omitempty" protobuf:"bytes,7,opt,name=portals"`
	// whether support iSCSI Discovery CHAP authentication
	// +optional
	DiscoveryCHAPAuth bool `json:"chapAuthDiscovery,omitempty" protobuf:"varint,8,opt,name=chapAuthDiscovery"`
	// whether support iSCSI Session CHAP authentication
	// +optional
	SessionCHAPAuth bool `json:"chapAuthSession,omitempty" protobuf:"varint,11,opt,name=chapAuthSession"`
	// CHAP Secret for iSCSI target and initiator authentication
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,10,opt,name=secretRef"`
	// Custom iSCSI Initiator Name.
	// If initiatorName is specified with iscsiInterface simultaneously, new iSCSI interface
	// <target portal>:<volume name> will be created for the connection.
	// +optional
	InitiatorName *string `json:"initiatorName,omitempty" protobuf:"bytes,12,opt,name=initiatorName"`
}

// ISCSIPersistentVolumeSource represents an ISCSI disk.
// ISCSI volumes can only be mounted as read/write once.
// ISCSI volumes support ownership management and SELinux relabeling.
type ISCSIPersistentVolumeSource struct {
	// iSCSI Target Portal. The Portal is either an IP or ip_addr:port if the port
	// is other than default (typically TCP ports 860 and 3260).
	TargetPortal string `json:"targetPortal" protobuf:"bytes,1,opt,name=targetPortal"`
	// Target iSCSI Qualified Name.
	IQN string `json:"iqn" protobuf:"bytes,2,opt,name=iqn"`
	// iSCSI Target Lun number.
	Lun int32 `json:"lun" protobuf:"varint,3,opt,name=lun"`
	// iSCSI Interface Name that uses an iSCSI transport.
	// Defaults to 'default' (tcp).
	// +optional
	ISCSIInterface string `json:"iscsiInterface,omitempty" protobuf:"bytes,4,opt,name=iscsiInterface"`
	// Filesystem type of the volume that you want to mount.
	// Tip: Ensure that the filesystem type is supported by the host operating system.
	// Examples: "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes#iscsi
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,5,opt,name=fsType"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,6,opt,name=readOnly"`
	// iSCSI Target Portal List. The Portal is either an IP or ip_addr:port if the port
	// is other than default (typically TCP ports 860 and 3260).
	// +optional
	Portals []string `json:"portals,omitempty" protobuf:"bytes,7,opt,name=portals"`
	// whether support iSCSI Discovery CHAP authentication
	// +optional
	DiscoveryCHAPAuth bool `json:"chapAuthDiscovery,omitempty" protobuf:"varint,8,opt,name=chapAuthDiscovery"`
	// whether support iSCSI Session CHAP authentication
	// +optional
	SessionCHAPAuth bool `json:"chapAuthSession,omitempty" protobuf:"varint,11,opt,name=chapAuthSession"`
	// CHAP Secret for iSCSI target and initiator authentication
	// +optional
	SecretRef *SecretReference `json:"secretRef,omitempty" protobuf:"bytes,10,opt,name=secretRef"`
	// Custom iSCSI Initiator Name.
	// If initiatorName is specified with iscsiInterface simultaneously, new iSCSI interface
	// <target portal>:<volume name> will be created for the connection.
	// +optional
	InitiatorName *string `json:"initiatorName,omitempty" protobuf:"bytes,12,opt,name=initiatorName"`
}

// Represents a Fibre Channel volume.
// Fibre Channel volumes can only be mounted as read/write once.
// Fibre Channel volumes support ownership management and SELinux relabeling.
type FCVolumeSource struct {
	// Optional: FC target worldwide names (WWNs)
	// +optional
	TargetWWNs []string `json:"targetWWNs,omitempty" protobuf:"bytes,1,rep,name=targetWWNs"`
	// Optional: FC target lun number
	// +optional
	Lun *int32 `json:"lun,omitempty" protobuf:"varint,2,opt,name=lun"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,3,opt,name=fsType"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
	// Optional: FC volume world wide identifiers (wwids)
	// Either wwids or combination of targetWWNs and lun must be set, but not both simultaneously.
	// +optional
	WWIDs []string `json:"wwids,omitempty" protobuf:"bytes,5,rep,name=wwids"`
}

// AzureFile represents an Azure File Service mount on the host and bind mount to the pod.
type AzureFileVolumeSource struct {
	// the name of secret that contains Azure Storage Account Name and Key
	SecretName string `json:"secretName" protobuf:"bytes,1,opt,name=secretName"`
	// Share Name
	ShareName string `json:"shareName" protobuf:"bytes,2,opt,name=shareName"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
}

// AzureFile represents an Azure File Service mount on the host and bind mount to the pod.
type AzureFilePersistentVolumeSource struct {
	// the name of secret that contains Azure Storage Account Name and Key
	SecretName string `json:"secretName" protobuf:"bytes,1,opt,name=secretName"`
	// Share Name
	ShareName string `json:"shareName" protobuf:"bytes,2,opt,name=shareName"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
	// the namespace of the secret that contains Azure Storage Account Name and Key
	// default is the same as the Pod
	// +optional
	SecretNamespace *string `json:"secretNamespace" protobuf:"bytes,4,opt,name=secretNamespace"`
}

// Represents a vSphere volume resource.
type VsphereVirtualDiskVolumeSource struct {
	// Path that identifies vSphere volume vmdk
	VolumePath string `json:"volumePath" protobuf:"bytes,1,opt,name=volumePath"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Storage Policy Based Management (SPBM) profile name.
	// +optional
	StoragePolicyName string `json:"storagePolicyName,omitempty" protobuf:"bytes,3,opt,name=storagePolicyName"`
	// Storage Policy Based Management (SPBM) profile ID associated with the StoragePolicyName.
	// +optional
	StoragePolicyID string `json:"storagePolicyID,omitempty" protobuf:"bytes,4,opt,name=storagePolicyID"`
}

// Represents a Photon Controller persistent disk resource.
type PhotonPersistentDiskVolumeSource struct {
	// ID that identifies Photon Controller persistent disk
	PdID string `json:"pdID" protobuf:"bytes,1,opt,name=pdID"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
}

type AzureDataDiskCachingMode string
type AzureDataDiskKind string

const (
	AzureDataDiskCachingNone      AzureDataDiskCachingMode = "None"
	AzureDataDiskCachingReadOnly  AzureDataDiskCachingMode = "ReadOnly"
	AzureDataDiskCachingReadWrite AzureDataDiskCachingMode = "ReadWrite"

	AzureSharedBlobDisk    AzureDataDiskKind = "Shared"
	AzureDedicatedBlobDisk AzureDataDiskKind = "Dedicated"
	AzureManagedDisk       AzureDataDiskKind = "Managed"
)

// AzureDisk represents an Azure Data Disk mount on the host and bind mount to the pod.
type AzureDiskVolumeSource struct {
	// The Name of the data disk in the blob storage
	DiskName string `json:"diskName" protobuf:"bytes,1,opt,name=diskName"`
	// The URI the data disk in the blob storage
	DataDiskURI string `json:"diskURI" protobuf:"bytes,2,opt,name=diskURI"`
	// Host Caching mode: None, Read Only, Read Write.
	// +optional
	CachingMode *AzureDataDiskCachingMode `json:"cachingMode,omitempty" protobuf:"bytes,3,opt,name=cachingMode,casttype=AzureDataDiskCachingMode"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// +optional
	FSType *string `json:"fsType,omitempty" protobuf:"bytes,4,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly *bool `json:"readOnly,omitempty" protobuf:"varint,5,opt,name=readOnly"`
	// Expected values Shared: multiple blob disks per storage account  Dedicated: single blob disk per storage account  Managed: azure managed data disk (only in managed availability set). defaults to shared
	Kind *AzureDataDiskKind `json:"kind,omitempty" protobuf:"bytes,6,opt,name=kind,casttype=AzureDataDiskKind"`
}

// PortworxVolumeSource represents a Portworx volume resource.
type PortworxVolumeSource struct {
	// VolumeID uniquely identifies a Portworx volume
	VolumeID string `json:"volumeID" protobuf:"bytes,1,opt,name=volumeID"`
	// FSType represents the filesystem type to mount
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs". Implicitly inferred to be "ext4" if unspecified.
	FSType string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`
}

// ScaleIOVolumeSource represents a persistent ScaleIO volume
type ScaleIOVolumeSource struct {
	// The host address of the ScaleIO API Gateway.
	Gateway string `json:"gateway" protobuf:"bytes,1,opt,name=gateway"`
	// The name of the storage system as configured in ScaleIO.
	System string `json:"system" protobuf:"bytes,2,opt,name=system"`
	// SecretRef references to the secret for ScaleIO user and other
	// sensitive information. If this is not provided, Login operation will fail.
	SecretRef *LocalObjectReference `json:"secretRef" protobuf:"bytes,3,opt,name=secretRef"`
	// Flag to enable/disable SSL communication with Gateway, default false
	// +optional
	SSLEnabled bool `json:"sslEnabled,omitempty" protobuf:"varint,4,opt,name=sslEnabled"`
	// The name of the ScaleIO Protection Domain for the configured storage.
	// +optional
	ProtectionDomain string `json:"protectionDomain,omitempty" protobuf:"bytes,5,opt,name=protectionDomain"`
	// The ScaleIO Storage Pool associated with the protection domain.
	// +optional
	StoragePool string `json:"storagePool,omitempty" protobuf:"bytes,6,opt,name=storagePool"`
	// Indicates whether the storage for a volume should be ThickProvisioned or ThinProvisioned.
	// Default is ThinProvisioned.
	// +optional
	StorageMode string `json:"storageMode,omitempty" protobuf:"bytes,7,opt,name=storageMode"`
	// The name of a volume already created in the ScaleIO system
	// that is associated with this volume source.
	VolumeName string `json:"volumeName,omitempty" protobuf:"bytes,8,opt,name=volumeName"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs".
	// Default is "xfs".
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,9,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,10,opt,name=readOnly"`
}

// ScaleIOPersistentVolumeSource represents a persistent ScaleIO volume
type ScaleIOPersistentVolumeSource struct {
	// The host address of the ScaleIO API Gateway.
	Gateway string `json:"gateway" protobuf:"bytes,1,opt,name=gateway"`
	// The name of the storage system as configured in ScaleIO.
	System string `json:"system" protobuf:"bytes,2,opt,name=system"`
	// SecretRef references to the secret for ScaleIO user and other
	// sensitive information. If this is not provided, Login operation will fail.
	SecretRef *SecretReference `json:"secretRef" protobuf:"bytes,3,opt,name=secretRef"`
	// Flag to enable/disable SSL communication with Gateway, default false
	// +optional
	SSLEnabled bool `json:"sslEnabled,omitempty" protobuf:"varint,4,opt,name=sslEnabled"`
	// The name of the ScaleIO Protection Domain for the configured storage.
	// +optional
	ProtectionDomain string `json:"protectionDomain,omitempty" protobuf:"bytes,5,opt,name=protectionDomain"`
	// The ScaleIO Storage Pool associated with the protection domain.
	// +optional
	StoragePool string `json:"storagePool,omitempty" protobuf:"bytes,6,opt,name=storagePool"`
	// Indicates whether the storage for a volume should be ThickProvisioned or ThinProvisioned.
	// Default is ThinProvisioned.
	// +optional
	StorageMode string `json:"storageMode,omitempty" protobuf:"bytes,7,opt,name=storageMode"`
	// The name of a volume already created in the ScaleIO system
	// that is associated with this volume source.
	VolumeName string `json:"volumeName,omitempty" protobuf:"bytes,8,opt,name=volumeName"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs".
	// Default is "xfs"
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,9,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,10,opt,name=readOnly"`
}

// Represents a StorageOS persistent volume resource.
type StorageOSVolumeSource struct {
	// VolumeName is the human-readable name of the StorageOS volume.  Volume
	// names are only unique within a namespace.
	VolumeName string `json:"volumeName,omitempty" protobuf:"bytes,1,opt,name=volumeName"`
	// VolumeNamespace specifies the scope of the volume within StorageOS.  If no
	// namespace is specified then the Pod's namespace will be used.  This allows the
	// Kubernetes name scoping to be mirrored within StorageOS for tighter integration.
	// Set VolumeName to any name to override the default behaviour.
	// Set to "default" if you are not using namespaces within StorageOS.
	// Namespaces that do not pre-exist within StorageOS will be created.
	// +optional
	VolumeNamespace string `json:"volumeNamespace,omitempty" protobuf:"bytes,2,opt,name=volumeNamespace"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,3,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
	// SecretRef specifies the secret to use for obtaining the StorageOS API
	// credentials.  If not specified, default values will be attempted.
	// +optional
	SecretRef *LocalObjectReference `json:"secretRef,omitempty" protobuf:"bytes,5,opt,name=secretRef"`
}

// Represents a StorageOS persistent volume resource.
type StorageOSPersistentVolumeSource struct {
	// VolumeName is the human-readable name of the StorageOS volume.  Volume
	// names are only unique within a namespace.
	VolumeName string `json:"volumeName,omitempty" protobuf:"bytes,1,opt,name=volumeName"`
	// VolumeNamespace specifies the scope of the volume within StorageOS.  If no
	// namespace is specified then the Pod's namespace will be used.  This allows the
	// Kubernetes name scoping to be mirrored within StorageOS for tighter integration.
	// Set VolumeName to any name to override the default behaviour.
	// Set to "default" if you are not using namespaces within StorageOS.
	// Namespaces that do not pre-exist within StorageOS will be created.
	// +optional
	VolumeNamespace string `json:"volumeNamespace,omitempty" protobuf:"bytes,2,opt,name=volumeNamespace"`
	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". Implicitly inferred to be "ext4" if unspecified.
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,3,opt,name=fsType"`
	// Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,4,opt,name=readOnly"`
	// SecretRef specifies the secret to use for obtaining the StorageOS API
	// credentials.  If not specified, default values will be attempted.
	// +optional
	SecretRef *ObjectReference `json:"secretRef,omitempty" protobuf:"bytes,5,opt,name=secretRef"`
}

// Adapts a ConfigMap into a volume.
//
// The contents of the target ConfigMap's Data field will be presented in a
// volume as files using the keys in the Data field as the file names, unless
// the items element is populated with specific mappings of keys to paths.
// ConfigMap volumes support ownership management and SELinux relabeling.
type ConfigMapVolumeSource struct {
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// If unspecified, each key-value pair in the Data field of the referenced
	// ConfigMap will be projected into the volume as a file whose name is the
	// key and content is the value. If specified, the listed keys will be
	// projected into the specified paths, and unlisted keys will not be
	// present. If a key is specified which is not present in the ConfigMap,
	// the volume setup will error unless it is marked optional. Paths must be
	// relative and may not contain the '..' path or start with '..'.
	// +optional
	Items []KeyToPath `json:"items,omitempty" protobuf:"bytes,2,rep,name=items"`
	// Optional: mode bits to use on created files by default. Must be a
	// value between 0 and 0777. Defaults to 0644.
	// Directories within the path are not affected by this setting.
	// This might be in conflict with other options that affect the file
	// mode, like fsGroup, and the result can be other mode bits set.
	// +optional
	DefaultMode *int32 `json:"defaultMode,omitempty" protobuf:"varint,3,opt,name=defaultMode"`
	// Specify whether the ConfigMap or it's keys must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,4,opt,name=optional"`
}

const (
	ConfigMapVolumeSourceDefaultMode int32 = 0644
)

// Adapts a ConfigMap into a projected volume.
//
// The contents of the target ConfigMap's Data field will be presented in a
// projected volume as files using the keys in the Data field as the file names,
// unless the items element is populated with specific mappings of keys to paths.
// Note that this is identical to a configmap volume source without the default
// mode.
type ConfigMapProjection struct {
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// If unspecified, each key-value pair in the Data field of the referenced
	// ConfigMap will be projected into the volume as a file whose name is the
	// key and content is the value. If specified, the listed keys will be
	// projected into the specified paths, and unlisted keys will not be
	// present. If a key is specified which is not present in the ConfigMap,
	// the volume setup will error unless it is marked optional. Paths must be
	// relative and may not contain the '..' path or start with '..'.
	// +optional
	Items []KeyToPath `json:"items,omitempty" protobuf:"bytes,2,rep,name=items"`
	// Specify whether the ConfigMap or it's keys must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,4,opt,name=optional"`
}

// ServiceAccountTokenProjection represents a projected service account token
// volume. This projection can be used to insert a service account token into
// the pods runtime filesystem for use against APIs (Kubernetes API Server or
// otherwise).
type ServiceAccountTokenProjection struct {
	// Audience is the intended audience of the token. A recipient of a token
	// must identify itself with an identifier specified in the audience of the
	// token, and otherwise should reject the token. The audience defaults to the
	// identifier of the apiserver.
	//+optional
	Audience string `json:"audience,omitempty" protobuf:"bytes,1,rep,name=audience"`
	// ExpirationSeconds is the requested duration of validity of the service
	// account token. As the token approaches expiration, the kubelet volume
	// plugin will proactively rotate the service account token. The kubelet will
	// start trying to rotate the token if the token is older than 80 percent of
	// its time to live or if the token is older than 24 hours.Defaults to 1 hour
	// and must be at least 10 minutes.
	//+optional
	ExpirationSeconds *int64 `json:"expirationSeconds,omitempty" protobuf:"varint,2,opt,name=expirationSeconds"`
	// Path is the path relative to the mount point of the file to project the
	// token into.
	Path string `json:"path" protobuf:"bytes,3,opt,name=path"`
}

// Represents a projected volume source
type ProjectedVolumeSource struct {
	// list of volume projections
	Sources []VolumeProjection `json:"sources" protobuf:"bytes,1,rep,name=sources"`
	// Mode bits to use on created files by default. Must be a value between
	// 0 and 0777.
	// Directories within the path are not affected by this setting.
	// This might be in conflict with other options that affect the file
	// mode, like fsGroup, and the result can be other mode bits set.
	// +optional
	DefaultMode *int32 `json:"defaultMode,omitempty" protobuf:"varint,2,opt,name=defaultMode"`
}

// Projection that may be projected along with other supported volume types
type VolumeProjection struct {
	// all types below are the supported types for projection into the same volume

	// information about the secret data to project
	// +optional
	Secret *SecretProjection `json:"secret,omitempty" protobuf:"bytes,1,opt,name=secret"`
	// information about the downwardAPI data to project
	// +optional
	DownwardAPI *DownwardAPIProjection `json:"downwardAPI,omitempty" protobuf:"bytes,2,opt,name=downwardAPI"`
	// information about the configMap data to project
	// +optional
	ConfigMap *ConfigMapProjection `json:"configMap,omitempty" protobuf:"bytes,3,opt,name=configMap"`
	// information about the serviceAccountToken data to project
	// +optional
	ServiceAccountToken *ServiceAccountTokenProjection `json:"serviceAccountToken,omitempty" protobuf:"bytes,4,opt,name=serviceAccountToken"`
}

const (
	ProjectedVolumeSourceDefaultMode int32 = 0644
)

// Maps a string key to a path within a volume.
type KeyToPath struct {
	// The key to project.
	Key string `json:"key" protobuf:"bytes,1,opt,name=key"`

	// The relative path of the file to map the key to.
	// May not be an absolute path.
	// May not contain the path element '..'.
	// May not start with the string '..'.
	Path string `json:"path" protobuf:"bytes,2,opt,name=path"`
	// Optional: mode bits to use on this file, must be a value between 0
	// and 0777. If not specified, the volume defaultMode will be used.
	// This might be in conflict with other options that affect the file
	// mode, like fsGroup, and the result can be other mode bits set.
	// +optional
	Mode *int32 `json:"mode,omitempty" protobuf:"varint,3,opt,name=mode"`
}

// Local represents directly-attached storage with node affinity (Beta feature)
type LocalVolumeSource struct {
	// The full path to the volume on the node.
	// It can be either a directory or block device (disk, partition, ...).
	Path string `json:"path" protobuf:"bytes,1,opt,name=path"`

	// Filesystem type to mount.
	// It applies only when the Path is a block device.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs". The default value is to auto-select a fileystem if unspecified.
	// +optional
	FSType *string `json:"fsType,omitempty" protobuf:"bytes,2,opt,name=fsType"`
}

// Represents storage that is managed by an external CSI volume driver (Beta feature)
type CSIPersistentVolumeSource struct {
	// Driver is the name of the driver to use for this volume.
	// Required.
	Driver string `json:"driver" protobuf:"bytes,1,opt,name=driver"`

	// VolumeHandle is the unique volume name returned by the CSI volume
	// plugin’s CreateVolume to refer to the volume on all subsequent calls.
	// Required.
	VolumeHandle string `json:"volumeHandle" protobuf:"bytes,2,opt,name=volumeHandle"`

	// Optional: The value to pass to ControllerPublishVolumeRequest.
	// Defaults to false (read/write).
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,3,opt,name=readOnly"`

	// Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs".
	// +optional
	FSType string `json:"fsType,omitempty" protobuf:"bytes,4,opt,name=fsType"`

	// Attributes of the volume to publish.
	// +optional
	VolumeAttributes map[string]string `json:"volumeAttributes,omitempty" protobuf:"bytes,5,rep,name=volumeAttributes"`

	// ControllerPublishSecretRef is a reference to the secret object containing
	// sensitive information to pass to the CSI driver to complete the CSI
	// ControllerPublishVolume and ControllerUnpublishVolume calls.
	// This field is optional, and may be empty if no secret is required. If the
	// secret object contains more than one secret, all secrets are passed.
	// +optional
	ControllerPublishSecretRef *SecretReference `json:"controllerPublishSecretRef,omitempty" protobuf:"bytes,6,opt,name=controllerPublishSecretRef"`

	// NodeStageSecretRef is a reference to the secret object containing sensitive
	// information to pass to the CSI driver to complete the CSI NodeStageVolume
	// and NodeStageVolume and NodeUnstageVolume calls.
	// This field is optional, and may be empty if no secret is required. If the
	// secret object contains more than one secret, all secrets are passed.
	// +optional
	NodeStageSecretRef *SecretReference `json:"nodeStageSecretRef,omitempty" protobuf:"bytes,7,opt,name=nodeStageSecretRef"`

	// NodePublishSecretRef is a reference to the secret object containing
	// sensitive information to pass to the CSI driver to complete the CSI
	// NodePublishVolume and NodeUnpublishVolume calls.
	// This field is optional, and may be empty if no secret is required. If the
	// secret object contains more than one secret, all secrets are passed.
	// +optional
	NodePublishSecretRef *SecretReference `json:"nodePublishSecretRef,omitempty" protobuf:"bytes,8,opt,name=nodePublishSecretRef"`
}

// ContainerPort represents a network port in a single container.
type ContainerPort struct {
	// If specified, this must be an IANA_SVC_NAME and unique within the pod. Each
	// named port in a pod must have a unique name. Name for the port that can be
	// referred to by services.
	// +optional
	Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
	// Number of port to expose on the host.
	// If specified, this must be a valid port number, 0 < x < 65536.
	// If HostNetwork is specified, this must match ContainerPort.
	// Most containers do not need this.
	// +optional
	HostPort int32 `json:"hostPort,omitempty" protobuf:"varint,2,opt,name=hostPort"`
	// Number of port to expose on the pod's IP address.
	// This must be a valid port number, 0 < x < 65536.
	ContainerPort int32 `json:"containerPort" protobuf:"varint,3,opt,name=containerPort"`
	// Protocol for port. Must be UDP, TCP, or SCTP.
	// Defaults to "TCP".
	// +optional
	Protocol Protocol `json:"protocol,omitempty" protobuf:"bytes,4,opt,name=protocol,casttype=Protocol"`
	// What host IP to bind the external port to.
	// +optional
	HostIP string `json:"hostIP,omitempty" protobuf:"bytes,5,opt,name=hostIP"`
}

// VolumeMount describes a mounting of a Volume within a container.
type VolumeMount struct {
	// This must match the Name of a Volume.
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// Mounted read-only if true, read-write otherwise (false or unspecified).
	// Defaults to false.
	// +optional
	ReadOnly bool `json:"readOnly,omitempty" protobuf:"varint,2,opt,name=readOnly"`
	// Path within the container at which the volume should be mounted.  Must
	// not contain ':'.
	MountPath string `json:"mountPath" protobuf:"bytes,3,opt,name=mountPath"`
	// Path within the volume from which the container's volume should be mounted.
	// Defaults to "" (volume's root).
	// +optional
	SubPath string `json:"subPath,omitempty" protobuf:"bytes,4,opt,name=subPath"`
	// mountPropagation determines how mounts are propagated from the host
	// to container and the other way around.
	// When not set, MountPropagationNone is used.
	// This field is beta in 1.10.
	// +optional
	MountPropagation *MountPropagationMode `json:"mountPropagation,omitempty" protobuf:"bytes,5,opt,name=mountPropagation,casttype=MountPropagationMode"`
}

// MountPropagationMode describes mount propagation.
type MountPropagationMode string

const (
	// MountPropagationNone means that the volume in a container will
	// not receive new mounts from the host or other containers, and filesystems
	// mounted inside the container won't be propagated to the host or other
	// containers.
	// Note that this mode corresponds to "private" in Linux terminology.
	MountPropagationNone MountPropagationMode = "None"
	// MountPropagationHostToContainer means that the volume in a container will
	// receive new mounts from the host or other containers, but filesystems
	// mounted inside the container won't be propagated to the host or other
	// containers.
	// Note that this mode is recursively applied to all mounts in the volume
	// ("rslave" in Linux terminology).
	MountPropagationHostToContainer MountPropagationMode = "HostToContainer"
	// MountPropagationBidirectional means that the volume in a container will
	// receive new mounts from the host or other containers, and its own mounts
	// will be propagated from the container to the host or other containers.
	// Note that this mode is recursively applied to all mounts in the volume
	// ("rshared" in Linux terminology).
	MountPropagationBidirectional MountPropagationMode = "Bidirectional"
)

// volumeDevice describes a mapping of a raw block device within a container.
type VolumeDevice struct {
	// name must match the name of a persistentVolumeClaim in the pod
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// devicePath is the path inside of the container that the device will be mapped to.
	DevicePath string `json:"devicePath" protobuf:"bytes,2,opt,name=devicePath"`
}

// EnvVar represents an environment variable present in a Container.
type EnvVar struct {
	// Name of the environment variable. Must be a C_IDENTIFIER.
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`

	// Optional: no more than one of the following may be specified.

	// Variable references $(VAR_NAME) are expanded
	// using the previous defined environment variables in the container and
	// any service environment variables. If a variable cannot be resolved,
	// the reference in the input string will be unchanged. The $(VAR_NAME)
	// syntax can be escaped with a double $$, ie: $$(VAR_NAME). Escaped
	// references will never be expanded, regardless of whether the variable
	// exists or not.
	// Defaults to "".
	// +optional
	Value string `json:"value,omitempty" protobuf:"bytes,2,opt,name=value"`
	// Source for the environment variable's value. Cannot be used if value is not empty.
	// +optional
	ValueFrom *EnvVarSource `json:"valueFrom,omitempty" protobuf:"bytes,3,opt,name=valueFrom"`
}

// EnvVarSource represents a source for the value of an EnvVar.
type EnvVarSource struct {
	// Selects a field of the pod: supports metadata.name, metadata.namespace, metadata.labels, metadata.annotations,
	// spec.nodeName, spec.serviceAccountName, status.hostIP, status.podIP.
	// +optional
	FieldRef *ObjectFieldSelector `json:"fieldRef,omitempty" protobuf:"bytes,1,opt,name=fieldRef"`
	// Selects a resource of the container: only resources limits and requests
	// (limits.cpu, limits.memory, limits.ephemeral-storage, requests.cpu, requests.memory and requests.ephemeral-storage) are currently supported.
	// +optional
	ResourceFieldRef *ResourceFieldSelector `json:"resourceFieldRef,omitempty" protobuf:"bytes,2,opt,name=resourceFieldRef"`
	// Selects a key of a ConfigMap.
	// +optional
	ConfigMapKeyRef *ConfigMapKeySelector `json:"configMapKeyRef,omitempty" protobuf:"bytes,3,opt,name=configMapKeyRef"`
	// Selects a key of a secret in the pod's namespace
	// +optional
	SecretKeyRef *SecretKeySelector `json:"secretKeyRef,omitempty" protobuf:"bytes,4,opt,name=secretKeyRef"`
}

// ObjectFieldSelector selects an APIVersioned field of an object.
type ObjectFieldSelector struct {
	// Version of the schema the FieldPath is written in terms of, defaults to "v1".
	// +optional
	APIVersion string `json:"apiVersion,omitempty" protobuf:"bytes,1,opt,name=apiVersion"`
	// Path of the field to select in the specified API version.
	FieldPath string `json:"fieldPath" protobuf:"bytes,2,opt,name=fieldPath"`
}

// ResourceFieldSelector represents container resources (cpu, memory) and their output format
type ResourceFieldSelector struct {
	// Container name: required for volumes, optional for env vars
	// +optional
	ContainerName string `json:"containerName,omitempty" protobuf:"bytes,1,opt,name=containerName"`
	// Required: resource to select
	Resource string `json:"resource" protobuf:"bytes,2,opt,name=resource"`
	// Specifies the output format of the exposed resources, defaults to "1"
	// +optional
	Divisor resource.Quantity `json:"divisor,omitempty" protobuf:"bytes,3,opt,name=divisor"`
}

// Selects a key from a ConfigMap.
type ConfigMapKeySelector struct {
	// The ConfigMap to select from.
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// The key to select.
	Key string `json:"key" protobuf:"bytes,2,opt,name=key"`
	// Specify whether the ConfigMap or it's key must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,3,opt,name=optional"`
}

// SecretKeySelector selects a key of a Secret.
type SecretKeySelector struct {
	// The name of the secret in the pod's namespace to select from.
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// The key of the secret to select from.  Must be a valid secret key.
	Key string `json:"key" protobuf:"bytes,2,opt,name=key"`
	// Specify whether the Secret or it's key must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,3,opt,name=optional"`
}

// EnvFromSource represents the source of a set of ConfigMaps
type EnvFromSource struct {
	// An optional identifier to prepend to each key in the ConfigMap. Must be a C_IDENTIFIER.
	// +optional
	Prefix string `json:"prefix,omitempty" protobuf:"bytes,1,opt,name=prefix"`
	// The ConfigMap to select from
	// +optional
	ConfigMapRef *ConfigMapEnvSource `json:"configMapRef,omitempty" protobuf:"bytes,2,opt,name=configMapRef"`
	// The Secret to select from
	// +optional
	SecretRef *SecretEnvSource `json:"secretRef,omitempty" protobuf:"bytes,3,opt,name=secretRef"`
}

// ConfigMapEnvSource selects a ConfigMap to populate the environment
// variables with.
//
// The contents of the target ConfigMap's Data field will represent the
// key-value pairs as environment variables.
type ConfigMapEnvSource struct {
	// The ConfigMap to select from.
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// Specify whether the ConfigMap must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,2,opt,name=optional"`
}

// SecretEnvSource selects a Secret to populate the environment
// variables with.
//
// The contents of the target Secret's Data field will represent the
// key-value pairs as environment variables.
type SecretEnvSource struct {
	// The Secret to select from.
	LocalObjectReference `json:",inline" protobuf:"bytes,1,opt,name=localObjectReference"`
	// Specify whether the Secret must be defined
	// +optional
	Optional *bool `json:"optional,omitempty" protobuf:"varint,2,opt,name=optional"`
}

// HTTPHeader describes a custom header to be used in HTTP probes
type HTTPHeader struct {
	// The header field name
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// The header field value
	Value string `json:"value" protobuf:"bytes,2,opt,name=value"`
}

// HTTPGetAction describes an action based on HTTP Get requests.
type HTTPGetAction struct {
	// Path to access on the HTTP server.
	// +optional
	Path string `json:"path,omitempty" protobuf:"bytes,1,opt,name=path"`
	// Name or number of the port to access on the container.
	// Number must be in the range 1 to 65535.
	// Name must be an IANA_SVC_NAME.
	Port intstr.IntOrString `json:"port" protobuf:"bytes,2,opt,name=port"`
	// Host name to connect to, defaults to the pod IP. You probably want to set
	// "Host" in httpHeaders instead.
	// +optional
	Host string `json:"host,omitempty" protobuf:"bytes,3,opt,name=host"`
	// Scheme to use for connecting to the host.
	// Defaults to HTTP.
	// +optional
	Scheme URIScheme `json:"scheme,omitempty" protobuf:"bytes,4,opt,name=scheme,casttype=URIScheme"`
	// Custom headers to set in the request. HTTP allows repeated headers.
	// +optional
	HTTPHeaders []HTTPHeader `json:"httpHeaders,omitempty" protobuf:"bytes,5,rep,name=httpHeaders"`
}

// URIScheme identifies the scheme used for connection to a host for Get actions
type URIScheme string

const (
	// URISchemeHTTP means that the scheme used will be http://
	URISchemeHTTP URIScheme = "HTTP"
	// URISchemeHTTPS means that the scheme used will be https://
	URISchemeHTTPS URIScheme = "HTTPS"
)

// TCPSocketAction describes an action based on opening a socket
type TCPSocketAction struct {
	// Number or name of the port to access on the container.
	// Number must be in the range 1 to 65535.
	// Name must be an IANA_SVC_NAME.
	Port intstr.IntOrString `json:"port" protobuf:"bytes,1,opt,name=port"`
	// Optional: Host name to connect to, defaults to the pod IP.
	// +optional
	Host string `json:"host,omitempty" protobuf:"bytes,2,opt,name=host"`
}

// ExecAction describes a "run in container" action.
type ExecAction struct {
	// Command is the command line to execute inside the container, the working directory for the
	// command  is root ('/') in the container's filesystem. The command is simply exec'd, it is
	// not run inside a shell, so traditional shell instructions ('|', etc) won't work. To use
	// a shell, you need to explicitly call out to that shell.
	// Exit status of 0 is treated as live/healthy and non-zero is unhealthy.
	// +optional
	Command []string `json:"command,omitempty" protobuf:"bytes,1,rep,name=command"`
}

// Probe describes a health check to be performed against a container to determine whether it is
// alive or ready to receive traffic.
type Probe struct {
	// The action taken to determine the health of a container
	Handler `json:",inline" protobuf:"bytes,1,opt,name=handler"`
	// Number of seconds after the container has started before liveness probes are initiated.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
	// +optional
	InitialDelaySeconds int32 `json:"initialDelaySeconds,omitempty" protobuf:"varint,2,opt,name=initialDelaySeconds"`
	// Number of seconds after which the probe times out.
	// Defaults to 1 second. Minimum value is 1.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
	// +optional
	TimeoutSeconds int32 `json:"timeoutSeconds,omitempty" protobuf:"varint,3,opt,name=timeoutSeconds"`
	// How often (in seconds) to perform the probe.
	// Default to 10 seconds. Minimum value is 1.
	// +optional
	PeriodSeconds int32 `json:"periodSeconds,omitempty" protobuf:"varint,4,opt,name=periodSeconds"`
	// Minimum consecutive successes for the probe to be considered successful after having failed.
	// Defaults to 1. Must be 1 for liveness. Minimum value is 1.
	// +optional
	SuccessThreshold int32 `json:"successThreshold,omitempty" protobuf:"varint,5,opt,name=successThreshold"`
	// Minimum consecutive failures for the probe to be considered failed after having succeeded.
	// Defaults to 3. Minimum value is 1.
	// +optional
	FailureThreshold int32 `json:"failureThreshold,omitempty" protobuf:"varint,6,opt,name=failureThreshold"`
}

// PullPolicy describes a policy for if/when to pull a container image
type PullPolicy string

const (
	// PullAlways means that kubelet always attempts to pull the latest image. Container will fail If the pull fails.
	PullAlways PullPolicy = "Always"
	// PullNever means that kubelet never pulls an image, but only uses a local image. Container will fail if the image isn't present
	PullNever PullPolicy = "Never"
	// PullIfNotPresent means that kubelet pulls if the image isn't present on disk. Container will fail if the image isn't present and the pull fails.
	PullIfNotPresent PullPolicy = "IfNotPresent"
)

// TerminationMessagePolicy describes how termination messages are retrieved from a container.
type TerminationMessagePolicy string

const (
	// TerminationMessageReadFile is the default behavior and will set the container status message to
	// the contents of the container's terminationMessagePath when the container exits.
	TerminationMessageReadFile TerminationMessagePolicy = "File"
	// TerminationMessageFallbackToLogsOnError will read the most recent contents of the container logs
	// for the container status message when the container exits with an error and the
	// terminationMessagePath has no contents.
	TerminationMessageFallbackToLogsOnError TerminationMessagePolicy = "FallbackToLogsOnError"
)

// Capability represent POSIX capabilities type
type Capability string

// Adds and removes POSIX capabilities from running containers.
type Capabilities struct {
	// Added capabilities
	// +optional
	Add []Capability `json:"add,omitempty" protobuf:"bytes,1,rep,name=add,casttype=Capability"`
	// Removed capabilities
	// +optional
	Drop []Capability `json:"drop,omitempty" protobuf:"bytes,2,rep,name=drop,casttype=Capability"`
}

// ResourceRequirements describes the compute resource requirements.
type ResourceRequirements struct {
	// Limits describes the maximum amount of compute resources allowed.
	// More info: https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/
	// +optional
	Limits ResourceList `json:"limits,omitempty" protobuf:"bytes,1,rep,name=limits,casttype=ResourceList,castkey=ResourceName"`
	// Requests describes the minimum amount of compute resources required.
	// If Requests is omitted for a container, it defaults to Limits if that is explicitly specified,
	// otherwise to an implementation-defined value.
	// More info: https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/
	// +optional
	Requests ResourceList `json:"requests,omitempty" protobuf:"bytes,2,rep,name=requests,casttype=ResourceList,castkey=ResourceName"`
}

const (
	// TerminationMessagePathDefault means the default path to capture the application termination message running in a container
	TerminationMessagePathDefault string = "/dev/termination-log"
)

// A single application container that you want to run within a pod.
type Container struct {
	// Name of the container specified as a DNS_LABEL.
	// Each container in a pod must have a unique name (DNS_LABEL).
	// Cannot be updated.
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// Docker image name.
	// More info: https://kubernetes.io/docs/concepts/containers/images
	// This field is optional to allow higher level config management to default or override
	// container images in workload controllers like Deployments and StatefulSets.
	// +optional
	Image string `json:"image,omitempty" protobuf:"bytes,2,opt,name=image"`
	// Entrypoint array. Not executed within a shell.
	// The docker image's ENTRYPOINT is used if this is not provided.
	// Variable references $(VAR_NAME) are expanded using the container's environment. If a variable
	// cannot be resolved, the reference in the input string will be unchanged. The $(VAR_NAME) syntax
	// can be escaped with a double $$, ie: $$(VAR_NAME). Escaped references will never be expanded,
	// regardless of whether the variable exists or not.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell
	// +optional
	Command []string `json:"command,omitempty" protobuf:"bytes,3,rep,name=command"`
	// Arguments to the entrypoint.
	// The docker image's CMD is used if this is not provided.
	// Variable references $(VAR_NAME) are expanded using the container's environment. If a variable
	// cannot be resolved, the reference in the input string will be unchanged. The $(VAR_NAME) syntax
	// can be escaped with a double $$, ie: $$(VAR_NAME). Escaped references will never be expanded,
	// regardless of whether the variable exists or not.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell
	// +optional
	Args []string `json:"args,omitempty" protobuf:"bytes,4,rep,name=args"`
	// Container's working directory.
	// If not specified, the container runtime's default will be used, which
	// might be configured in the container image.
	// Cannot be updated.
	// +optional
	WorkingDir string `json:"workingDir,omitempty" protobuf:"bytes,5,opt,name=workingDir"`
	// List of ports to expose from the container. Exposing a port here gives
	// the system additional information about the network connections a
	// container uses, but is primarily informational. Not specifying a port here
	// DOES NOT prevent that port from being exposed. Any port which is
	// listening on the default "0.0.0.0" address inside a container will be
	// accessible from the network.
	// Cannot be updated.
	// +optional
	// +patchMergeKey=containerPort
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=containerPort
	// +listMapKey=protocol
	Ports []ContainerPort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"containerPort" protobuf:"bytes,6,rep,name=ports"`
	// List of sources to populate environment variables in the container.
	// The keys defined within a source must be a C_IDENTIFIER. All invalid keys
	// will be reported as an event when the container is starting. When a key exists in multiple
	// sources, the value associated with the last source will take precedence.
	// Values defined by an Env with a duplicate key will take precedence.
	// Cannot be updated.
	// +optional
	EnvFrom []EnvFromSource `json:"envFrom,omitempty" protobuf:"bytes,19,rep,name=envFrom"`
	// List of environment variables to set in the container.
	// Cannot be updated.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge
	Env []EnvVar `json:"env,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,7,rep,name=env"`
	// Compute Resources required by this container.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/
	// +optional
	Resources ResourceRequirements `json:"resources,omitempty" protobuf:"bytes,8,opt,name=resources"`
	// Pod volumes to mount into the container's filesystem.
	// Cannot be updated.
	// +optional
	// +patchMergeKey=mountPath
	// +patchStrategy=merge
	VolumeMounts []VolumeMount `json:"volumeMounts,omitempty" patchStrategy:"merge" patchMergeKey:"mountPath" protobuf:"bytes,9,rep,name=volumeMounts"`
	// volumeDevices is the list of block devices to be used by the container.
	// This is a beta feature.
	// +patchMergeKey=devicePath
	// +patchStrategy=merge
	// +optional
	VolumeDevices []VolumeDevice `json:"volumeDevices,omitempty" patchStrategy:"merge" patchMergeKey:"devicePath" protobuf:"bytes,21,rep,name=volumeDevices"`
	// Periodic probe of container liveness.
	// Container will be restarted if the probe fails.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
	// +optional
	LivenessProbe *Probe `json:"livenessProbe,omitempty" protobuf:"bytes,10,opt,name=livenessProbe"`
	// Periodic probe of container service readiness.
	// Container will be removed from service endpoints if the probe fails.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
	// +optional
	ReadinessProbe *Probe `json:"readinessProbe,omitempty" protobuf:"bytes,11,opt,name=readinessProbe"`
	// Actions that the management system should take in response to container lifecycle events.
	// Cannot be updated.
	// +optional
	Lifecycle *Lifecycle `json:"lifecycle,omitempty" protobuf:"bytes,12,opt,name=lifecycle"`
	// Optional: Path at which the file to which the container's termination message
	// will be written is mounted into the container's filesystem.
	// Message written is intended to be brief final status, such as an assertion failure message.
	// Will be truncated by the node if greater than 4096 bytes. The total message length across
	// all containers will be limited to 12kb.
	// Defaults to /dev/termination-log.
	// Cannot be updated.
	// +optional
	TerminationMessagePath string `json:"terminationMessagePath,omitempty" protobuf:"bytes,13,opt,name=terminationMessagePath"`
	// Indicate how the termination message should be populated. File will use the contents of
	// terminationMessagePath to populate the container status message on both success and failure.
	// FallbackToLogsOnError will use the last chunk of container log output if the termination
	// message file is empty and the container exited with an error.
	// The log output is limited to 2048 bytes or 80 lines, whichever is smaller.
	// Defaults to File.
	// Cannot be updated.
	// +optional
	TerminationMessagePolicy TerminationMessagePolicy `json:"terminationMessagePolicy,omitempty" protobuf:"bytes,20,opt,name=terminationMessagePolicy,casttype=TerminationMessagePolicy"`
	// Image pull policy.
	// One of Always, Never, IfNotPresent.
	// Defaults to Always if :latest tag is specified, or IfNotPresent otherwise.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/concepts/containers/images#updating-images
	// +optional
	ImagePullPolicy PullPolicy `json:"imagePullPolicy,omitempty" protobuf:"bytes,14,opt,name=imagePullPolicy,casttype=PullPolicy"`
	// Security options the pod should run with.
	// More info: https://kubernetes.io/docs/concepts/policy/security-context/
	// More info: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
	// +optional
	SecurityContext *SecurityContext `json:"securityContext,omitempty" protobuf:"bytes,15,opt,name=securityContext"`

	// Variables for interactive containers, these have very specialized use-cases (e.g. debugging)
	// and shouldn't be used for general purpose containers.

	// Whether this container should allocate a buffer for stdin in the container runtime. If this
	// is not set, reads from stdin in the container will always result in EOF.
	// Default is false.
	// +optional
	Stdin bool `json:"stdin,omitempty" protobuf:"varint,16,opt,name=stdin"`
	// Whether the container runtime should close the stdin channel after it has been opened by
	// a single attach. When stdin is true the stdin stream will remain open across multiple attach
	// sessions. If stdinOnce is set to true, stdin is opened on container start, is empty until the
	// first client attaches to stdin, and then remains open and accepts data until the client disconnects,
	// at which time stdin is closed and remains closed until the container is restarted. If this
	// flag is false, a container processes that reads from stdin will never receive an EOF.
	// Default is false
	// +optional
	StdinOnce bool `json:"stdinOnce,omitempty" protobuf:"varint,17,opt,name=stdinOnce"`
	// Whether this container should allocate a TTY for itself, also requires 'stdin' to be true.
	// Default is false.
	// +optional
	TTY bool `json:"tty,omitempty" protobuf:"varint,18,opt,name=tty"`
}

// Handler defines a specific action that should be taken
// TODO: pass structured data to these actions, and document that data here.
type Handler struct {
	// One and only one of the following should be specified.
	// Exec specifies the action to take.
	// +optional
	Exec *ExecAction `json:"exec,omitempty" protobuf:"bytes,1,opt,name=exec"`
	// HTTPGet specifies the http request to perform.
	// +optional
	HTTPGet *HTTPGetAction `json:"httpGet,omitempty" protobuf:"bytes,2,opt,name=httpGet"`
	// TCPSocket specifies an action involving a TCP port.
	// TCP hooks not yet supported
	// TODO: implement a realistic TCP lifecycle hook
	// +optional
	TCPSocket *TCPSocketAction `json:"tcpSocket,omitempty" protobuf:"bytes,3,opt,name=tcpSocket"`
}

// Lifecycle describes actions that the management system should take in response to container lifecycle
// events. For the PostStart and PreStop lifecycle handlers, management of the container blocks
// until the action is complete, unless the container process fails, in which case the handler is aborted.
type Lifecycle struct {
	// PostStart is called immediately after a container is created. If the handler fails,
	// the container is terminated and restarted according to its restart policy.
	// Other management of the container blocks until the hook completes.
	// More info: https://kubernetes.io/docs/concepts/containers/container-lifecycle-hooks/#container-hooks
	// +optional
	PostStart *Handler `json:"postStart,omitempty" protobuf:"bytes,1,opt,name=postStart"`
	// PreStop is called immediately before a container is terminated.
	// The container is terminated after the handler completes.
	// The reason for termination is passed to the handler.
	// Regardless of the outcome of the handler, the container is eventually terminated.
	// Other management of the container blocks until the hook completes.
	// More info: https://kubernetes.io/docs/concepts/containers/container-lifecycle-hooks/#container-hooks
	// +optional
	PreStop *Handler `json:"preStop,omitempty" protobuf:"bytes,2,opt,name=preStop"`
}

type ConditionStatus string

// These are valid condition statuses. "ConditionTrue" means a resource is in the condition.
// "ConditionFalse" means a resource is not in the condition. "ConditionUnknown" means kubernetes
// can't decide if a resource is in the condition or not. In the future, we could add other
// intermediate conditions, e.g. ConditionDegraded.
const (
	ConditionTrue    ConditionStatus = "True"
	ConditionFalse   ConditionStatus = "False"
	ConditionUnknown ConditionStatus = "Unknown"
)

// ContainerStateWaiting is a waiting state of a container.
type ContainerStateWaiting struct {
	// (brief) reason the container is not yet running.
	// +optional
	Reason string `json:"reason,omitempty" protobuf:"bytes,1,opt,name=reason"`
	// Message regarding why the container is not yet running.
	// +optional
	Message string `json:"message,omitempty" protobuf:"bytes,2,opt,name=message"`
}

// ContainerStateRunning is a running state of a container.
type ContainerStateRunning struct {
	// Time at which the container was last (re-)started
	// +optional
	StartedAt metav1.Time `json:"startedAt,omitempty" protobuf:"bytes,1,opt,name=startedAt"`
}

// ContainerStateTerminated is a terminated state of a container.
type ContainerStateTerminated struct {
	// Exit status from the last termination of the container
	ExitCode int32 `json:"exitCode" protobuf:"varint,1,opt,name=exitCode"`
	// Signal from the last termination of the container
	// +optional
	Signal int32 `json:"signal,omitempty" protobuf:"varint,2,opt,name=signal"`
	// (brief) reason from the last termination of the container
	// +optional
	Reason string `json:"reason,omitempty" protobuf:"bytes,3,opt,name=reason"`
	// Message regarding the last termination of the container
	// +optional
	Message string `json:"message,omitempty" protobuf:"bytes,4,opt,name=message"`
	// Time at which previous execution of the container started
	// +optional
	StartedAt metav1.Time `json:"startedAt,omitempty" protobuf:"bytes,5,opt,name=startedAt"`
	// Time at which the container last terminated
	// +optional
	FinishedAt metav1.Time `json:"finishedAt,omitempty" protobuf:"bytes,6,opt,name=finishedAt"`
	// Container's ID in the format 'docker://<container_id>'
	// +optional
	ContainerID string `json:"containerID,omitempty" protobuf:"bytes,7,opt,name=containerID"`
}

// ContainerState holds a possible state of container.
// Only one of its members may be specified.
// If none of them is specified, the default one is ContainerStateWaiting.
type ContainerState struct {
	// Details about a waiting container
	// +optional
	Waiting *ContainerStateWaiting `json:"waiting,omitempty" protobuf:"bytes,1,opt,name=waiting"`
	// Details about a running container
	// +optional
	Running *ContainerStateRunning `json:"running,omitempty" protobuf:"bytes,2,opt,name=running"`
	// Details about a terminated container
	// +optional
	Terminated *ContainerStateTerminated `json:"terminated,omitempty" protobuf:"bytes,3,opt,name=terminated"`
}

// ContainerStatus contains details for the current status of this container.
type ContainerStatus struct {
	// This must be a DNS_LABEL. Each container in a pod must have a unique name.
	// Cannot be updated.
	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
	// Details about the container's current condition.
	// +optional
	State ContainerState `json:"state,omitempty" protobuf:"bytes,2,opt,name=state"`
	// Details about the container's last termination condition.
	// +optional
	LastTerminationState ContainerState `json:"lastState,omitempty" protobuf:"bytes,3,opt,name=lastState"`
	// Specifies whether the container has passed its readiness probe.
	Ready bool `json:"ready" protobuf:"varint,4,opt,name=ready"`
	// The number of times the container has been restarted, currently based on
	// the number of dead containers that have not yet been removed.
	// Note that this is calculated from dead containers. But those containers are subject to
	// garbage collection. This value will get capped at 5 by GC.
	RestartCount int32 `json:"restartCount" protobuf:"varint,5,opt,name=restartCount"`
	// The image the container is running.
	// More info: https://kubernetes.io/docs/concepts/containers/images
	// TODO(dchen1107): Which image the container is running with?
	Image string `json:"image" protobuf:"bytes,6,opt,name=image"`
	// ImageID of the container's image.
	ImageID string `json:"imageID" protobuf:"bytes,7,opt,name=imageID"`
	// Container's ID in the format 'docker://<container_id>'.
	// +optional
	ContainerID string `json:"containerID,omitempty" protobuf:"bytes,8,opt,name=containerID"`
}

// PodPhase is a label for the condition of a pod at the current time.
type PodPhase string

// These are the valid statuses of pods.
const (
	// PodPending means the pod has been accepted by the system, but one or more of the containers
	// has not been started. This includes time before being bound to a node, as well as time spent
	// pulling images onto the host.
	PodPending PodPhase = "Pending"
	// PodRunning means the pod has been bound to a node and all of the containers have been started.
	// At least one container is still running or is in the process of being restarted.
	PodRunning PodPhase = "Running"
	// PodSucceeded means that all containers in the pod have voluntarily terminated
	// with a container exit code of 0, and the system is not going to restart any of these containers.
	PodSucceeded PodPhase = "Succeeded"
	// PodFailed means that all containers in the pod have terminated, and at least one container has
	// terminated in a failure (exited with a non-zero exit code or was stopped by the system).
	PodFailed PodPhase = "Failed"
	// PodUnknown means that for some reason the state of the pod could not be obtained, typically due
	// to an error in communicating with the host of the pod.
	PodUnknown PodPhase = "Unknown"
)

// PodConditionType is a valid value for PodCondition.Type
type PodConditionType string

// These are valid conditions of pod.
const (
	// PodScheduled represents status of the scheduling process for this pod.
	PodScheduled PodConditionType = "PodScheduled"
	// PodReady means the pod is able to service requests and should be added to the
	// load balancing pools of all matching services.
	PodReady PodConditionType = "Ready"
	// PodInitialized means that all init containers in the pod have started successfully.
	PodInitialized PodConditionType = "Initialized"
	// PodReasonUnschedulable reason in PodScheduled PodCondition means that the scheduler
	// can't schedule the pod right now, for example due to insufficient resources in the cluster.
	PodReasonUnschedulable = "Unschedulable"
	// ContainersReady indicates whether all containers in the pod are ready.
	ContainersReady PodConditionType = "ContainersReady"
)

// PodCondition contains details for the current condition of this pod.
type PodCondition struct {
	// Type is the type of the condition.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-conditions
	Type PodConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=PodConditionType"`
	// Status is the status of the condition.
	// Can be True, False, Unknown.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-conditions
	Status ConditionStatus `json:"status" protobuf:"bytes,2,opt,name=status,casttype=ConditionStatus"`
	// Last time we probed the condition.
	// +optional
	LastProbeTime metav1.Time `json:"lastProbeTime,omitempty" protobuf:"bytes,3,opt,name=lastProbeTime"`
	// Last time the condition transitioned from one status to another.
	// +optional
	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty" protobuf:"bytes,4,opt,name=lastTransitionTime"`
	// Unique, one-word, CamelCase reason for the condition's last transition.
	// +optional
	Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
	// Human-readable message indicating details about last transition.
	// +optional
	Message string `json:"message,omitempty" protobuf:"bytes,6,opt,name=message"`
}

// RestartPolicy describes how the container should be restarted.
// Only one of the following restart policies may be specified.
// If none of the following policies is specified, the default one
// is RestartPolicyAlways.
type RestartPolicy string

const (
	RestartPolicyAlways    RestartPolicy = "Always"
	RestartPolicyOnFailure RestartPolicy = "OnFailure"
	RestartPolicyNever     RestartPolicy = "Never"
)

// DNSPolicy defines how a pod's DNS will be configured.
type DNSPolicy string

const (
	// DNSClusterFirstWithHostNet indicates that the pod should use cluster DNS
	// first, if it is available, then fall back on the default
	// (as determined by kubelet) DNS settings.
	DNSClusterFirstWithHostNet DNSPolicy = "ClusterFirstWithHostNet"

	// DNSClusterFirst indicates that the pod should use cluster DNS
	// first unless hostNetwork is true, if it is available, then
	// fall back on the default (as determined by kubelet) DNS settings.
	DNSClusterFirst DNSPolicy = "ClusterFirst"

	// DNSDefault indicates that the pod should use the default (as
	// determined by kubelet) DNS settings.
	DNSDefault DNSPolicy = "Default"

	// DNSNone indicates that the pod should use empty DNS settings. DNS
	// parameters such as nameservers and search paths should be defined via
	// DNSConfig.
	DNSNone DNSPolicy = "None"
)

const (
	// DefaultTerminationGracePeriodSeconds indicates the default duration in
	// seconds a pod needs to terminate gracefully.
	DefaultTerminationGracePeriodSeconds = 30
)

// A node selector represents the union of the results of one or more label queries
// over a set of nodes; that is, it represents the OR of the selectors represented
// by the node selector terms.
type NodeSelector struct {
	//Required. A list of node selector terms. The terms are ORed.
	NodeSelectorTerms []NodeSelectorTerm `json:"nodeSelectorTerms" protobuf:"bytes,1,rep,name=nodeSelectorTerms"`
}

// A null or empty node selector term matches no objects. The requirements of
// them are ANDed.
// The TopologySelectorTerm type implements a subset of the NodeSelectorTerm.
type NodeSelectorTerm struct {
	// A list of node selector requirements by node's labels.
	// +optional
	MatchExpressions []NodeSelectorRequirement `json:"matchExpressions,omitempty" protobuf:"bytes,1,rep,name=matchExpressions"`
	// A list of node selector requirements by node's fields.
	// +optional
	MatchFields []NodeSelectorRequirement `json:"matchFields,omitempty" protobuf:"bytes,2,rep,name=matchFields"`
}

// A node selector requirement is a selector that contains values, a key, and an operator
// that relates the key and values.
type NodeSelectorRequirement struct {
	// The label key that the selector applies to.
	Key string `json:"key" protobuf:"bytes,1,opt,name=key"`
	// Represents a key's relationship to a set of values.
	// Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.
	Operator NodeSelectorOperator `json:"operator" protobuf:"bytes,2,opt,name=operator,casttype=NodeSelectorOperator"`
	// An array of string values. If the operator is In or NotIn,
	// the values array must be non-empty. If the operator is Exists or DoesNotExist,
	// the values array must be empty. If the operator is Gt or Lt, the values
	// array must have a single element, which will be interpreted as an integer.
	// This array is replaced during a strategic merge patch.
	// +optional
	Values []string `json:"values,omitempty" protobuf:"bytes,3,rep,name=values"`
}

// A node selector operator is the set of operators that can be used in
// a node selector requirement.
type NodeSelectorOperator string

const (
	NodeSelectorOpIn           NodeSelectorOperator = "In"
	NodeSelectorOpNotIn        NodeSelectorOperator = "NotIn"
	NodeSelectorOpExists       NodeSelectorOperator = "Exists"
	NodeSelectorOpDoesNotExist NodeSelectorOperator = "DoesNotExist"
	NodeSelectorOpGt           NodeSelectorOperator = "Gt"
	NodeSelectorOpLt           NodeSelectorOperator = "Lt"
)

// A topology selector term represents the result of label queries.
// A null or empty topology selector term matches no objects.
// The requirements of them are ANDed.
// It provides a subset of functionality as NodeSelectorTerm.
// This is an alpha feature and may change in the future.
type TopologySelectorTerm struct {
	// A list of topology selector requirements by labels.
	// +optional
	MatchLabelExpressions []TopologySelectorLabelRequirement `json:"matchLabelExpressions,omitempty" protobuf:"bytes,1,rep,name=matchLabelExpressions"`
}

// A topology selector requirement is a selector that matches given label.
// This is an alpha feature and may change in the future.
type TopologySelectorLabelRequirement struct {
	// The label key that the selector applies to.
	Key string `json:"key" protobuf:"bytes,1,opt,name=key"`
	// An array of string values. One value must match the label to be selected.
	// Each entry in Values is ORed.
	Values []string `json:"values" protobuf:"bytes,2,rep,name=values"`
}

// Affinity is a group of affinity scheduling rules.
type Affinity struct {
	// Describes node affinity scheduling rules for the pod.
	// +optional
	NodeAffinity *NodeAffinity `json:"nodeAffinity,omitempty" protobuf:"bytes,1,opt,name=nodeAffinity"`
	// Describes pod affinity scheduling rules (e.g. co-locate this pod in the same node, zone, etc. as some other pod(s)).
	// +optional
	PodAffinity *PodAffinity `json:"podAffinity,omitempty" protobuf:"bytes,2,opt,name=podAffinity"`
	// Describes pod anti-affinity scheduling rules (e.g. avoid putting this pod in the same node, zone, etc. as some other pod(s)).
	// +optional
	PodAntiAffinity *PodAntiAffinity `json:"podAntiAffinity,omitempty" protobuf:"bytes,3,opt,name=podAntiAffinity"`
}

// Pod affinity is a group of inter pod affinity scheduling rules.
type PodAffinity struct {
	// NOT YET IMPLEMENTED. TODO: Uncomment field once it is implemented.
	// If the affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to a pod label update), the
	// system will try to eventually evict the pod from its node.
	// When there are multiple elements, the lists of nodes corresponding to each
	// podAffinityTerm are intersected, i.e. all terms must be satisfied.
	// +optional
	// RequiredDuringSchedulingRequiredDuringExecution []PodAffinityTerm  `json:"requiredDuringSchedulingRequiredDuringExecution,omitempty"`

	// If the affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to a pod label update), the
	// system may or may not try to eventually evict the pod from its node.
	// When there are multiple elements, the lists of nodes corresponding to each
	// podAffinityTerm are intersected, i.e. all terms must be satisfied.
	// +optional
	RequiredDuringSchedulingIgnoredDuringExecution []PodAffinityTerm `json:"requiredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,1,rep,name=requiredDuringSchedulingIgnoredDuringExecution"`
	// The scheduler will prefer to schedule pods to nodes that satisfy
	// the affinity expressions specified by this field, but it may choose
	// a node that violates one or more of the expressions. The node that is
	// most preferred is the one with the greatest sum of weights, i.e.
	// for each node that meets all of the scheduling requirements (resource
	// request, requiredDuringScheduling affinity expressions, etc.),
	// compute a sum by iterating through the elements of this field and adding
	// "weight" to the sum if the node has pods which matches the corresponding podAffinityTerm; the
	// node(s) with the highest sum are the most preferred.
	// +optional
	PreferredDuringSchedulingIgnoredDuringExecution []WeightedPodAffinityTerm `json:"preferredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,2,rep,name=preferredDuringSchedulingIgnoredDuringExecution"`
}

// Pod anti affinity is a group of inter pod anti affinity scheduling rules.
type PodAntiAffinity struct {
	// NOT YET IMPLEMENTED. TODO: Uncomment field once it is implemented.
	// If the anti-affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the anti-affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to a pod label update), the
	// system will try to eventually evict the pod from its node.
	// When there are multiple elements, the lists of nodes corresponding to each
	// podAffinityTerm are intersected, i.e. all terms must be satisfied.
	// +optional
	// RequiredDuringSchedulingRequiredDuringExecution []PodAffinityTerm  `json:"requiredDuringSchedulingRequiredDuringExecution,omitempty"`

	// If the anti-affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the anti-affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to a pod label update), the
	// system may or may not try to eventually evict the pod from its node.
	// When there are multiple elements, the lists of nodes corresponding to each
	// podAffinityTerm are intersected, i.e. all terms must be satisfied.
	// +optional
	RequiredDuringSchedulingIgnoredDuringExecution []PodAffinityTerm `json:"requiredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,1,rep,name=requiredDuringSchedulingIgnoredDuringExecution"`
	// The scheduler will prefer to schedule pods to nodes that satisfy
	// the anti-affinity expressions specified by this field, but it may choose
	// a node that violates one or more of the expressions. The node that is
	// most preferred is the one with the greatest sum of weights, i.e.
	// for each node that meets all of the scheduling requirements (resource
	// request, requiredDuringScheduling anti-affinity expressions, etc.),
	// compute a sum by iterating through the elements of this field and adding
	// "weight" to the sum if the node has pods which matches the corresponding podAffinityTerm; the
	// node(s) with the highest sum are the most preferred.
	// +optional
	PreferredDuringSchedulingIgnoredDuringExecution []WeightedPodAffinityTerm `json:"preferredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,2,rep,name=preferredDuringSchedulingIgnoredDuringExecution"`
}

// The weights of all of the matched WeightedPodAffinityTerm fields are added per-node to find the most preferred node(s)
type WeightedPodAffinityTerm struct {
	// weight associated with matching the corresponding podAffinityTerm,
	// in the range 1-100.
	Weight int32 `json:"weight" protobuf:"varint,1,opt,name=weight"`
	// Required. A pod affinity term, associated with the corresponding weight.
	PodAffinityTerm PodAffinityTerm `json:"podAffinityTerm" protobuf:"bytes,2,opt,name=podAffinityTerm"`
}

// Defines a set of pods (namely those matching the labelSelector
// relative to the given namespace(s)) that this pod should be
// co-located (affinity) or not co-located (anti-affinity) with,
// where co-located is defined as running on a node whose value of
// the label with key <topologyKey> matches that of any node on which
// a pod of the set of pods is running
type PodAffinityTerm struct {
	// A label query over a set of resources, in this case pods.
	// +optional
	LabelSelector *metav1.LabelSelector `json:"labelSelector,omitempty" protobuf:"bytes,1,opt,name=labelSelector"`
	// namespaces specifies which namespaces the labelSelector applies to (matches against);
	// null or empty list means "this pod's namespace"
	// +optional
	Namespaces []string `json:"namespaces,omitempty" protobuf:"bytes,2,rep,name=namespaces"`
	// This pod should be co-located (affinity) or not co-located (anti-affinity) with the pods matching
	// the labelSelector in the specified namespaces, where co-located is defined as running on a node
	// whose value of the label with key topologyKey matches that of any node on which any of the
	// selected pods is running.
	// Empty topologyKey is not allowed.
	TopologyKey string `json:"topologyKey" protobuf:"bytes,3,opt,name=topologyKey"`
}

// Node affinity is a group of node affinity scheduling rules.
type NodeAffinity struct {
	// NOT YET IMPLEMENTED. TODO: Uncomment field once it is implemented.
	// If the affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to an update), the system
	// will try to eventually evict the pod from its node.
	// +optional
	// RequiredDuringSchedulingRequiredDuringExecution *NodeSelector `json:"requiredDuringSchedulingRequiredDuringExecution,omitempty"`

	// If the affinity requirements specified by this field are not met at
	// scheduling time, the pod will not be scheduled onto the node.
	// If the affinity requirements specified by this field cease to be met
	// at some point during pod execution (e.g. due to an update), the system
	// may or may not try to eventually evict the pod from its node.
	// +optional
	RequiredDuringSchedulingIgnoredDuringExecution *NodeSelector `json:"requiredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,1,opt,name=requiredDuringSchedulingIgnoredDuringExecution"`
	// The scheduler will prefer to schedule pods to nodes that satisfy
	// the affinity expressions specified by this field, but it may choose
	// a node that violates one or more of the expressions. The node that is
	// most preferred is the one with the greatest sum of weights, i.e.
	// for each node that meets all of the scheduling requirements (resource
	// request, requiredDuringScheduling affinity expressions, etc.),
	// compute a sum by iterating through the elements of this field and adding
	// "weight" to the sum if the node matches the corresponding matchExpressions; the
	// node(s) with the highest sum are the most preferred.
	// +optional
	PreferredDuringSchedulingIgnoredDuringExecution []PreferredSchedulingTerm `json:"preferredDuringSchedulingIgnoredDuringExecution,omitempty" protobuf:"bytes,2,rep,name=preferredDuringSchedulingIgnoredDuringExecution"`
}

// An empty preferred scheduling term matches all objects with implicit weight 0
// (i.e. it's a no-op). A null preferred scheduling term matches no objects (i.e. is also a no-op).
type PreferredSchedulingTerm struct {
	// Weight associated with matching the corresponding nodeSelectorTerm, in the range 1-100.
	Weight int32 `json:"weight" protobuf:"varint,1,opt,name=weight"`
	// A node selector term, associated with the corresponding weight.
	Preference NodeSelectorTerm `json:"preference" protobuf:"bytes,2,opt,name=preference"`
}

// The node this Taint is attached to has the "effect" on
// any pod that does not tolerate the Taint.
type Taint struct {
	// Required. The taint key to be applied to a node.
	Key string `json:"key" protobuf:"bytes,1,opt,name=key"`
	// Required. The taint value corresponding to the taint key.
	// +optional
	Value string `json:"value,omitempty" protobuf:"bytes,2,opt,name=value"`
	// Required. The effect of the taint on pods
	// that do not tolerate the taint.
	// Valid effects are NoSchedule, PreferNoSchedule and NoExecute.
	Effect TaintEffect `json:"effect" protobuf:"bytes,3,opt,name=effect,casttype=TaintEffect"`
	// TimeAdded represents the time at which the taint was added.
	// It is only written for NoExecute taints.
	// +optional
	TimeAdded *metav1.Time `json:"timeAdded,omitempty" protobuf:"bytes,4,opt,name=timeAdded"`
}

type TaintEffect string

const (
	// Do not allow new pods to schedule onto the node unless they tolerate the taint,
	// but allow all pods submitted to Kubelet without going through the scheduler
	// to start, and allow all already-running pods to continue running.
	// Enforced by the scheduler.
	TaintEffectNoSchedule TaintEffect = "NoSchedule"
	// Like TaintEffectNoSchedule, but the scheduler tries not to schedule
	// new pods onto the node, rather than prohibiting new pods from scheduling
	// onto the node entirely. Enforced by the scheduler.
	TaintEffectPreferNoSchedule TaintEffect = "PreferNoSchedule"
	// NOT YET IMPLEMENTED. TODO: Uncomment field once it is implemented.
	// Like TaintEffectNoSchedule, but additionally do not allow pods submitted to
	// Kubelet without going through the scheduler to start.
	// Enforced by Kubelet and the scheduler.
	// TaintEffectNoScheduleNoAdmit TaintEffect = "NoScheduleNoAdmit"

	// Evict any already-running pods that do not tolerate the taint.
	// Currently enforced by NodeController.
	TaintEffectNoExecute TaintEffect = "NoExecute"
)

// The pod this Toleration is attached to tolerates any taint that matches
// the triple <key,value,effect> using the matching operator <operator>.
type Toleration struct {
	// Key is the taint key that the toleration applies to. Empty means match all taint keys.
	// If the key is empty, operator must be Exists; this combination means to match all values and all keys.
	// +optional
	Key string `json:"key,omitempty" protobuf:"bytes,1,opt,name=key"`
	// Operator represents a key's relationship to the value.
	// Valid operators are Exists and Equal. Defaults to Equal.
	// Exists is equivalent to wildcard for value, so that a pod can
	// tolerate all taints of a particular category.
	// +optional
	Operator TolerationOperator `json:"operator,omitempty" protobuf:"bytes,2,opt,name=operator,casttype=TolerationOperator"`
	// Value is the taint value the toleration matches to.
	// If the operator is Exists, the value should be empty, otherwise just a regular string.
	// +optional
	Value string `json:"value,omitempty" protobuf:"bytes,3,opt,name=value"`
	// Effect indicates the taint effect to match. Empty means match all taint effects.
	// When specified, allowed values are NoSchedule, PreferNoSchedule and NoExecute.
	// +optional
	Effect TaintEffect `json:"effect,omitempty" protobuf:"bytes,4,opt,name=effect,casttype=TaintEffect"`
	// TolerationSeconds represents the period of time the toleration (which must be
	// of effect NoExecute, otherwise this field is ignored) tolerates the taint. By default,
	// it is not set, which means tolerate the taint forever (do not evict). Zero and
	// negative values will be treated as 0 (evict immediately) by the system.
	// +optional
	TolerationSeconds *int64 `json:"tolerationSeconds,omitempty" protobuf:"varint,5,opt,name=tolerationSeconds"`
}

// A toleration operator is the set of operators that can be used in a toleration.
type TolerationOperator string

const (
	TolerationOpExists TolerationOperator = "Exists"
	TolerationOpEqual  TolerationOperator = "Equal"
)

// PodReadinessGate contains the reference to a pod condition
type PodReadinessGate struct {
	// ConditionType refers to a condition in the pod's condition list with matching type.
	ConditionType PodConditionType `json:"conditionType" protobuf:"bytes,1,opt,name=conditionType,casttype=PodConditionType"`
}

// PodSpec is a description of a pod.
type PodSpec struct {
	// List of volumes that can be mounted by containers belonging to the pod.
	// More info: https://kubernetes.io/docs/concepts/storage/volumes
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	Volumes []Volume `json:"volumes,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"name" protobuf:"bytes,1,rep,name=volumes"`
	// List of initialization containers belonging to the pod.
	// Init containers are executed in order prior to containers being started. If any
	// init container fails, the pod is considered to have failed and is handled according
	// to its restartPolicy. The name for an init container or normal container must be
	// unique among all containers.
	// Init containers may not have Lifecycle actions, Readiness probes, or Liveness probes.
	// The resourceRequirements of an init container are taken into account during scheduling
	// by finding the highest request/limit for each resource type, and then using the max of
	// of that value or the sum of the normal containers. Limits are applied to init containers
	// in a similar fashion.
	// Init containers cannot currently be added or removed.
	// Cannot be updated.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
	// +patchMergeKey=name
	// +patchStrategy=merge
	InitContainers []Container `json:"initContainers,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,20,rep,name=initContainers"`
	// List of containers belonging to the pod.
	// Containers cannot currently be added or removed.
	// There must be at least one container in a Pod.
	// Cannot be updated.
	// +patchMergeKey=name
	// +patchStrategy=merge
	Containers []Container `json:"containers" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,2,rep,name=containers"`
	// Restart policy for all containers within the pod.
	// One of Always, OnFailure, Never.
	// Default to Always.
	// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy
	// +optional
	RestartPolicy RestartPolicy `json:"restartPolicy,omitempty" protobuf:"bytes,3,opt,name=restartPolicy,casttype=RestartPolicy"`
	// Optional duration in seconds the pod needs to terminate gracefully. May be decreased in delete request.
	// Value must be non-negative integer. The value zero indicates delete immediately.
	// If this value is nil, the default grace period will be used instead.
	// The grace period is the duration in seconds after the processes running in the pod are sent
	// a termination signal and the time when the processes are forcibly halted with a kill signal.
	// Set this value longer than the expected cleanup time for your process.
	// Defaults to 30 seconds.
	// +optional
	TerminationGracePeriodSeconds *int64 `json:"terminationGracePeriodSeconds,omitempty" protobuf:"varint,4,opt,name=terminationGracePeriodSeconds"`
	// Optional duration in seconds the pod may be active on the node relative to
	// StartTime before the system will actively try to mark it failed and kill associated containers.
	// Value must be a positive integer.
	// +optional
	ActiveDeadlineSeconds *int64 `json:"activeDeadlineSeconds,omitempty" protobuf:"varint,5,opt,name=activeDeadlineSeconds"`
	// Set DNS policy for the pod.
	// Defaults to "ClusterFirst".
	// Valid values are 'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'.
	// DNS parameters given in DNSConfig will be merged with the policy selected with DNSPolicy.
	// To have DNS options set along with hostNetwork, you have to specify DNS policy
	// explicitly to 'ClusterFirstWithHostNet'.
	// +optional
	DNSPolicy DNSPolicy `json:"dnsPolicy,omitempty" protobuf:"bytes,6,opt,name=dnsPolicy,casttype=DNSPolicy"`
	// NodeSelector is a selector which must be true for the pod to fit on a node.
	// Selector which must match a node's labels for the pod to be scheduled on that node.
	// More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
	// +optional
	NodeSelector map[string]string `json:"nodeSelector,omitempty" protobuf:"bytes,7,rep,name=nodeSelector"`

	// ServiceAccountName is the name of the ServiceAccount to use to run this pod.
	// More info: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
	// +optional
	ServiceAccountName string `json:"serviceAccountName,omitempty" protobuf:"bytes,8,opt,name=serviceAccountName"`
	// DeprecatedServiceAccount is a depreciated alias for ServiceAccountName.
	// Deprecated: Use serviceAccountName instead.
	// +k8s:conversion-gen=false
	// +optional
	DeprecatedServiceAccount string `json:"serviceAccount,omitempty" protobuf:"bytes,9,opt,name=serviceAccount"`
	// AutomountServiceAccountToken indicates whether a service account token should be automatically mounted.
	// +optional
	AutomountServiceAccountToken *bool `json:"automountServiceAccountToken,omitempty" protobuf:"varint,21,opt,name=automountServiceAccountToken"`

	// NodeName is a request to schedule this pod onto a specific node. If it is non-empty,
	// the scheduler simply schedules this pod onto that node, assuming that it fits resource
	// requirements.
	// +optional
	NodeName string `json:"nodeName,omitempty" protobuf:"bytes,10,opt,name=nodeName"`
	// Host networking requested for this pod. Use the host's network namespace.
	// If this option is set, the ports that will be used must be specified.
	// Default to false.
	// +k8s:conversion-gen=false
	// +optional
	HostNetwork bool `json:"hostNetwork,omitempty" protobuf:"varint,11,opt,name=hostNetwork"`
	// Use the host's pid namespace.
	// Optional: Default to false.
	// +k8s:conversion-gen=false
	// +optional
	HostPID bool `json:"hostPID,omitempty" protobuf:"varint,12,opt,name=hostPID"`
	// Use the host's ipc namespace.
	// Optional: Default to false.
	// +k8s:conversion-gen=false
	// +optional
	HostIPC bool `json:"hostIPC,omitempty" protobuf:"varint,13,opt,name=hostIPC"`
	// Share a single process namespace between all of the containers in a pod.
	// When this is set containers will be able to view and signal processes from other containers
	// in the same pod, and the first process in each container will not be assigned PID 1.
	// HostPID and ShareProcessNamespace cannot both be set.
	// Optional: Default to false.
	// This field is beta-level and may be disabled with the PodShareProcessNamespace feature.
	// +k8s:conversion-gen=false
	// +optional
	ShareProcessNamespace *bool `json:"shareProcessNamespace,omitempty" protobuf:"varint,27,opt,name=shareProcessNamespace"`
	// SecurityContext holds pod-level security attributes and common container settings.
	// Optional: Defaults to empty.  See type description for default values of each field.
	// +optional
	SecurityContext *PodSecurityContext `json:"securityContext,omitempty" protobuf:"bytes,14,opt,name=securityContext"`
	// ImagePullSecrets is an optional list of references to secrets in the same namespace to use for pulling any of the images used by this PodSpec.
	// If specified, these secrets will be passed to individual puller implementations for them to use. For example,
	// in the case of docker, only DockerConfig type secrets are honored.
	// More info: https://kubernetes.io/docs/concepts/containers/images#specifying-imagepullsecrets-on-a-pod
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge
	ImagePullSecrets []LocalObjectReference `json:"imagePullSecrets,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,15,rep,name=imagePullSecrets"`
	// Specifies the hostname of the Pod
	// If not specified, the pod's hostname will be set to a system-defined value.
	// +optional
	Hostname string `json:"hostname,omitempty" protobuf:"bytes,16,opt,name=hostname"`
	// If specified, the fully qualified Pod hostname will be "<hostname>.<subdomain>.<pod namespace>.svc.<cluster domain>".
	// If not specified, the pod will not have a domainname at all.
	// +optional
	Subdomain string `json:"subdomain,omitempty" protobuf:"bytes,17,opt,name=subdomain"`
	// If specified, the pod's scheduling constraints
	// +optional
	Affinity *Affinity `json:"affinity,omitempty" protobuf:"bytes,18,opt,name=affinity"`
	// If specified, the pod will be dispatched by specified scheduler.
	// If not specified, the pod will be dispatched by default scheduler.
	// +optional
	SchedulerName string `json:"schedulerName,omitempty" protobuf:"bytes,19,opt,name=schedulerName"`
	// If specified, the pod's tolerations.
	// +optional
	Tolerations []Toleration `json:"tolerations,omitempty" protobuf:"bytes,22,opt,name=tolerations"`
	// HostAliases is an optional list of hosts and IPs that will be injected into the pod's hosts
	// file if specified. This is only valid for non-hostNetwork pods.
	// +optional
	// +patchMergeKey=ip
	// +patchStrategy=merge
	HostAliases []HostAlias `json:"hostAliases,omitempty" patchStrategy:"merge" patchMergeKey:"ip" protobuf:"bytes,23,rep,name=hostAliases"`
	// If specified, indicates the pod's priority. "system-node-critical" and
	// "system-cluster-critical" are two special keywords which indicate the
	// highest priorities with the former being the highest priority. Any other
	// name must be defined by creating a PriorityClass object with that name.
	// If not specified, the pod priority will be default or zero if there is no
	// default.
	// +optional
	PriorityClassName string `json:"priorityClassName,omitempty" protobuf:"bytes,24,opt,name=priorityClassName"`
	// The priority value. Various system components use this field to find the
	// priority of the pod. When Priority Admission Controller is enabled, it
	// prevents users from setting this field. The admission controller populates
	// this field from PriorityClassName.
	// The higher the value, the higher the priority.
	// +optional
	Priority *int32 `json:"priority,omitempty" protobuf:"bytes,25,opt,name=priority"`
	// Specifies the DNS parameters of a pod.
	// Parameters specified here will be merged to the generated DNS
	// configuration based on DNSPolicy.
	// +optional
	DNSConfig *PodDNSConfig `json:"dnsConfig,omitempty" protobuf:"bytes,26,opt,name=dnsConfig"`

	// If specified, all readiness gates will be evaluated for pod readiness.
	// A pod is ready when all its containers are ready AND
	// all conditions specified in the readiness gates have status equal to "True"
	// More info: https://github.com/kubernetes/community/blob/master/keps/sig-network/0007-pod-ready%2B%2B.md
	// +optional
	ReadinessGates []PodReadinessGate `json:"readinessGates,omitempty" protobuf:"bytes,28,opt,name=readinessGates"`
	// RuntimeClassName refers to a RuntimeClass object in the node.k8s.io group, which should be used
	// to run this pod.  If no RuntimeClass resource matches the named class, the pod will not be run.
	// If unset or empty, the "legacy" RuntimeClass will be used, which is an implicit class with an
	// empty definition that uses the default runtime handler.
	// More info: https://github.com/kubernetes/community/blob/master/keps/sig-node/0014-runtime-class.md
	// This is an alpha feature and may change in the future.
	// +optional
	RuntimeClassName *string `json:"runtimeClassName,omitempty" protobuf:"bytes,29,opt,name=runtimeClassName"`
	// EnableServiceLinks indicates whether information about services should be injected into pod's
	// environment variables, matching the syntax of Docker links.
	// +optional
	EnableServiceLinks *bool `json:"enableServiceLinks,omitempty" protobuf:"varint,30,opt,name=enableServiceLinks"`
}

const (
	// The default value for enableServiceLinks attribute.
	DefaultEnableServiceLinks = true
)

// HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the
// pod's hosts file.
type HostAlias struct {
	// IP address of the host file entry.
	IP string `json:"ip,omitempty" protobuf:"bytes,1,opt,name=ip"`
	// Hostnames for the above IP address.
	Hostnames []string `json:"hostnames,omitempty" protobuf:"bytes,2,rep,name=hostnames"`
}

// PodSecurityContext holds pod-level security attributes and common container settings.
// Some fields are also present in container.securityContext.  Field values of
// container.securityContext take precedence over field values of PodSecurityContext.
type PodSecurityContext struct {
	// The SELinux context to be applied to all containers.
	// If unspecified, the container runtime will allocate a random SELinux context for each
	// container.  May also be set in SecurityContext.  If set in
	// both SecurityContext and PodSecurityContext, the value specified in SecurityContext
	// takes precedence for that container.
	// +optional
	SELinuxOptions *SELinuxOptions `json:"seLinuxOptions,omitempty" protobuf:"bytes,1,opt,name=seLinuxOptions"`
	// The UID to run the entrypoint of the container process.
	// Defaults to user specified in image metadata if unspecified.
	// May also be set in SecurityContext.  If set in both SecurityContext and
	// PodSecurityContext, the value specified in SecurityContext takes precedence
	// for that container.
	// +optional
	RunAsUser *int64 `json:"runAsUser,omitempty" protobuf:"varint,2,opt,name=runAsUser"`
	// The GID to run the entrypoint of the container process.
	// Uses runtime default if unset.
	// May also be set in SecurityContext.  If set in both SecurityContext and
	// PodSecurityContext, the value specified in SecurityContext takes precedence
	// for that container.
	// +optional
	RunAsGroup *int64 `json:"runAsGroup,omitempty" protobuf:"varint,6,opt,name=runAsGroup"`
	// Indicates that the container must run as a non-root user.
	// If true, the Kubelet will validate the image at runtime to ensure that it
	// does not run as UID 0 (root) and fail to start the container if it does.
	// If unset or false, no such validation will be performed.
	// May also be set in SecurityContext.  If set in both SecurityContext and
	// PodSecurityContext, the value specified in SecurityContext takes precedence.
	// +optional
	RunAsNonRoot *bool `json:"runAsNonRoot,omitempty" protobuf:"varint,3,opt,name=runAsNonRoot"`