types.go

/*
Copyright 2015 The Kubernetes Authors All rights reserved.

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/kubernetes/pkg/api/resource"
	"k8s.io/kubernetes/pkg/api/unversioned"
	"k8s.io/kubernetes/pkg/runtime"
	"k8s.io/kubernetes/pkg/types"
	"k8s.io/kubernetes/pkg/util"
)

// The comments for the structs and fields can be used from go-resful to
// generate Swagger API documentation for its models. Please read this PR for more
// information on the implementation: https://github.com/emicklei/go-restful/pull/215
//
// TODOs are ignored from the parser (e.g. TODO(andronat):... || TODO:...) if and only if
// they are on one line! For multiple line or blocks that you want to ignore use ---.
// Any context after a --- is ignored and not exported to the SwaggerAPI.
//
// The aforementioned methods can be generated by hack/update-generated-swagger-docs.sh

// Common string formats
// ---------------------
// Many fields in this API have formatting requirements. The commonly used
// formats are defined here.
//
// C_IDENTIFIER:  This is a string that conforms to the definition of an "identifier"
//     in the C language. This is captured by the following regex:
//         [A-Za-z_][A-Za-z0-9_]*
//     This defines the format, but not the length restriction, which should be
//     specified at the definition of any field of this type.
//
// DNS_LABEL:  This is a string, no more than 63 characters long, that conforms
//     to the definition of a "label" in RFCs 1035 and 1123. This is captured
//     by the following regex:
//         [a-z0-9]([-a-z0-9]*[a-z0-9])?
//
// DNS_SUBDOMAIN:  This is a string, no more than 253 characters long, that conforms
//      to the definition of a "subdomain" in RFCs 1035 and 1123. This is captured
//      by the following regex:
//         [a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*
//     or more simply:
//         DNS_LABEL(\.DNS_LABEL)*
//
// IANA_SVC_NAME: This is a string, no more than 15 characters long, that
//      conforms to the definition of IANA service name in RFC 6335.
//      It must contains at least one letter [a-z] and it must contains only [a-z0-9-].
//      Hypens ('-') cannot be leading or trailing character of the string
//      and cannot be adjacent to other hyphens.

// ObjectMeta is metadata that all persisted resources must have, which includes all objects
// users must create.
type ObjectMeta struct {
	// Name must be unique within a namespace. Is required when creating resources, although
	// some resources may allow a client to request the generation of an appropriate name
	// automatically. Name is primarily intended for creation idempotence and configuration
	// definition.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#names
	Name string `json:"name,omitempty"`

	// GenerateName is an optional prefix, used by the server, to generate a unique
	// name ONLY IF the Name field has not been provided.
	// If this field is used, the name returned to the client will be different
	// than the name passed. This value will also be combined with a unique suffix.
	// The provided value has the same validation rules as the Name field,
	// and may be truncated by the length of the suffix required to make the value
	// unique on the server.
	//
	// If this field is specified and the generated name exists, the server will
	// NOT return a 409 - instead, it will either return 201 Created or 500 with Reason
	// ServerTimeout indicating a unique name could not be found in the time allotted, and the client
	// should retry (optionally after the time indicated in the Retry-After header).
	//
	// Applied only if Name is not specified.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#idempotency
	GenerateName string `json:"generateName,omitempty"`

	// Namespace defines the space within each name must be unique. An empty namespace is
	// equivalent to the "default" namespace, but "default" is the canonical representation.
	// Not all objects are required to be scoped to a namespace - the value of this field for
	// those objects will be empty.
	//
	// Must be a DNS_LABEL.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/namespaces.md
	Namespace string `json:"namespace,omitempty"`

	// SelfLink is a URL representing this object.
	// Populated by the system.
	// Read-only.
	SelfLink string `json:"selfLink,omitempty"`

	// UID is the unique in time and space value for this object. It is typically generated by
	// the server on successful creation of a resource and is not allowed to change on PUT
	// operations.
	//
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#uids
	UID types.UID `json:"uid,omitempty"`

	// An opaque value that represents the internal version of this object that can
	// be used by clients to determine when objects have changed. May be used for optimistic
	// concurrency, change detection, and the watch operation on a resource or set of resources.
	// Clients must treat these values as opaque and passed unmodified back to the server.
	// They may only be valid for a particular resource or set of resources.
	//
	// Populated by the system.
	// Read-only.
	// Value must be treated as opaque by clients and .
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#concurrency-control-and-consistency
	ResourceVersion string `json:"resourceVersion,omitempty"`

	// A sequence number representing a specific generation of the desired state.
	// Currently only implemented by replication controllers.
	// Populated by the system.
	// Read-only.
	Generation int64 `json:"generation,omitempty"`

	// CreationTimestamp is a timestamp representing the server time when this object was
	// created. It is not guaranteed to be set in happens-before order across separate operations.
	// Clients may not set this value. It is represented in RFC3339 form and is in UTC.
	//
	// Populated by the system.
	// Read-only.
	// Null for lists.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	CreationTimestamp unversioned.Time `json:"creationTimestamp,omitempty"`

	// DeletionTimestamp is RFC 3339 date and time at which this resource will be deleted. This
	// field is set by the server when a graceful deletion is requested by the user, and is not
	// directly settable by a client. The resource will be deleted (no longer visible from
	// resource lists, and not reachable by name) after the time in this field. Once set, this
	// value may not be unset or be set further into the future, although it may be shortened
	// or the resource may be deleted prior to this time. For example, a user may request that
	// a pod is deleted in 30 seconds. The Kubelet will react by sending a graceful termination
	// signal to the containers in the pod. Once the resource is deleted in the API, the Kubelet
	// will send a hard termination signal to the container.
	// If not set, graceful deletion of the object has not been requested.
	//
	// Populated by the system when a graceful deletion is requested.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	DeletionTimestamp *unversioned.Time `json:"deletionTimestamp,omitempty"`

	// Number of seconds allowed for this object to gracefully terminate before
	// it will be removed from the system. Only set when deletionTimestamp is also set.
	// May only be shortened.
	// Read-only.
	DeletionGracePeriodSeconds *int64 `json:"deletionGracePeriodSeconds,omitempty"`

	// Map of string keys and values that can be used to organize and categorize
	// (scope and select) objects. May match selectors of replication controllers
	// and services.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md
	// TODO: replace map[string]string with labels.LabelSet type
	Labels map[string]string `json:"labels,omitempty"`

	// Annotations is an unstructured key value map stored with a resource that may be
	// set by external tools to store and retrieve arbitrary metadata. They are not
	// queryable and should be preserved when modifying objects.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/annotations.md
	Annotations map[string]string `json:"annotations,omitempty"`
}

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 = ""
)

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#names
	Name string `json:"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"`
}

// VolumeSource represents the source location 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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#hostpath
	// ---
	// TODO(jonesdl) We need to restrict who can use host directory mounts and who can/can not
	// mount host directories as read/write.
	HostPath *HostPathVolumeSource `json:"hostPath,omitempty"`
	// EmptyDir represents a temporary directory that shares a pod's lifetime.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#emptydir
	EmptyDir *EmptyDirVolumeSource `json:"emptyDir,omitempty"`
	// GCEPersistentDisk represents a GCE Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk,omitempty"`
	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#awselasticblockstore
	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore,omitempty"`
	// GitRepo represents a git repository at a particular revision.
	GitRepo *GitRepoVolumeSource `json:"gitRepo,omitempty"`
	// Secret represents a secret that should populate this volume.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#secrets
	Secret *SecretVolumeSource `json:"secret,omitempty"`
	// NFS represents an NFS mount on the host that shares a pod's lifetime
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#nfs
	NFS *NFSVolumeSource `json:"nfs,omitempty"`
	// ISCSI represents an ISCSI Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: http://releases.k8s.io/release-1.1/examples/iscsi/README.md
	ISCSI *ISCSIVolumeSource `json:"iscsi,omitempty"`
	// Glusterfs represents a Glusterfs mount on the host that shares a pod's lifetime.
	// More info: http://releases.k8s.io/release-1.1/examples/glusterfs/README.md
	Glusterfs *GlusterfsVolumeSource `json:"glusterfs,omitempty"`
	// PersistentVolumeClaimVolumeSource represents a reference to a
	// PersistentVolumeClaim in the same namespace.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistentvolumeclaims
	PersistentVolumeClaim *PersistentVolumeClaimVolumeSource `json:"persistentVolumeClaim,omitempty"`
	// RBD represents a Rados Block Device mount on the host that shares a pod's lifetime.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md
	RBD *RBDVolumeSource `json:"rbd,omitempty"`
	// Cinder represents a cinder volume attached and mounted on kubelets host machine
	// More info: http://releases.k8s.io/release-1.1/examples/mysql-cinder-pd/README.md
	Cinder *CinderVolumeSource `json:"cinder,omitempty"`

	// CephFS represents a Ceph FS mount on the host that shares a pod's lifetime
	CephFS *CephFSVolumeSource `json:"cephfs,omitempty"`

	// Flocker represents a Flocker volume attached to a kubelet's host machine. This depends on the Flocker control service being running
	Flocker *FlockerVolumeSource `json:"flocker,omitempty"`

	// DownwardAPI represents downward API about the pod that should populate this volume
	DownwardAPI *DownwardAPIVolumeSource `json:"downwardAPI,omitempty"`
	// FC represents a Fibre Channel resource that is attached to a kubelet's host machine and then exposed to the pod.
	FC *FCVolumeSource `json:"fc,omitempty"`
}

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistentvolumeclaims
	ClaimName string `json:"claimName"`
	// Will force the ReadOnly setting in VolumeMounts.
	// Default false.
	ReadOnly bool `json:"readOnly,omitempty"`
}

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	GCEPersistentDisk *GCEPersistentDiskVolumeSource `json:"gcePersistentDisk,omitempty"`
	// AWSElasticBlockStore represents an AWS Disk resource that is attached to a
	// kubelet's host machine and then exposed to the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#awselasticblockstore
	AWSElasticBlockStore *AWSElasticBlockStoreVolumeSource `json:"awsElasticBlockStore,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#hostpath
	HostPath *HostPathVolumeSource `json:"hostPath,omitempty"`
	// Glusterfs represents a Glusterfs volume that is attached to a host and
	// exposed to the pod. Provisioned by an admin.
	// More info: http://releases.k8s.io/release-1.1/examples/glusterfs/README.md
	Glusterfs *GlusterfsVolumeSource `json:"glusterfs,omitempty"`
	// NFS represents an NFS mount on the host. Provisioned by an admin.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#nfs
	NFS *NFSVolumeSource `json:"nfs,omitempty"`
	// RBD represents a Rados Block Device mount on the host that shares a pod's lifetime.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md
	RBD *RBDVolumeSource `json:"rbd,omitempty"`
	// 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.
	ISCSI *ISCSIVolumeSource `json:"iscsi,omitempty"`
	// Cinder represents a cinder volume attached and mounted on kubelets host machine
	// More info: http://releases.k8s.io/release-1.1/examples/mysql-cinder-pd/README.md
	Cinder *CinderVolumeSource `json:"cinder,omitempty"`
	// CephFS represents a Ceph FS mount on the host that shares a pod's lifetime
	CephFS *CephFSVolumeSource `json:"cephfs,omitempty"`
	// FC represents a Fibre Channel resource that is attached to a kubelet's host machine and then exposed to the pod.
	FC *FCVolumeSource `json:"fc,omitempty"`
	// 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
	Flocker *FlockerVolumeSource `json:"flocker,omitempty"`
}

// PersistentVolume (PV) is a storage resource provisioned by an administrator.
// It is analogous to a node.
// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md
type PersistentVolume struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines a specification of a persistent volume owned by the cluster.
	// Provisioned by an administrator.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistent-volumes
	Spec PersistentVolumeSpec `json:"spec,omitempty"`

	// Status represents the current information/status for the persistent volume.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistent-volumes
	Status PersistentVolumeStatus `json:"status,omitempty"`
}

// PersistentVolumeSpec is the specification of a persistent volume.
type PersistentVolumeSpec struct {
	// A description of the persistent volume's resources and capacity.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#capacity
	Capacity ResourceList `json:"capacity,omitempty"`
	// The actual volume backing the persistent volume.
	PersistentVolumeSource `json:",inline"`
	// AccessModes contains all ways the volume can be mounted.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#access-modes
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#binding
	ClaimRef *ObjectReference `json:"claimRef,omitempty"`
	// What happens to a persistent volume when released from its claim.
	// Valid options are Retain (default) and Recycle.
	// Recyling must be supported by the volume plugin underlying this persistent volume.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#recycling-policy
	PersistentVolumeReclaimPolicy PersistentVolumeReclaimPolicy `json:"persistentVolumeReclaimPolicy,omitempty"`
}

// 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 left in its current phase (Released) for manual reclamation by the administrator.
	// The default policy is Retain.
	PersistentVolumeReclaimRetain PersistentVolumeReclaimPolicy = "Retain"
)

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#phase
	Phase PersistentVolumePhase `json:"phase,omitempty"`
	// A human-readable message indicating details about why the volume is in this state.
	Message string `json:"message,omitempty"`
	// Reason is a brief CamelCase string that describes any failure and is meant
	// for machine parsing and tidy display in the CLI.
	Reason string `json:"reason,omitempty"`
}

// PersistentVolumeList is a list of PersistentVolume items.
type PersistentVolumeList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`
	// List of persistent volumes.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md
	Items []PersistentVolume `json:"items"`
}

// PersistentVolumeClaim is a user's request for and claim to a persistent volume
type PersistentVolumeClaim struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the desired characteristics of a volume requested by a pod author.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistentvolumeclaims
	Spec PersistentVolumeClaimSpec `json:"spec,omitempty"`

	// Status represents the current information/status of a persistent volume claim.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistentvolumeclaims
	Status PersistentVolumeClaimStatus `json:"status,omitempty"`
}

// PersistentVolumeClaimList is a list of PersistentVolumeClaim items.
type PersistentVolumeClaimList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`
	// A list of persistent volume claims.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#persistentvolumeclaims
	Items []PersistentVolumeClaim `json:"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: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#access-modes-1
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty"`
	// Resources represents the minimum resources the volume should have.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#resources
	Resources ResourceRequirements `json:"resources,omitempty"`
	// VolumeName is the binding reference to the PersistentVolume backing this claim.
	VolumeName string `json:"volumeName,omitempty"`
}

// PersistentVolumeClaimStatus is the current status of a persistent volume claim.
type PersistentVolumeClaimStatus struct {
	// Phase represents the current phase of PersistentVolumeClaim.
	Phase PersistentVolumeClaimPhase `json:"phase,omitempty"`
	// AccessModes contains the actual access modes the volume backing the PVC has.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#access-modes-1
	AccessModes []PersistentVolumeAccessMode `json:"accessModes,omitempty"`
	// Represents the actual resources of the underlying volume.
	Capacity ResourceList `json:"capacity,omitempty"`
}

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"
)

// HostPathVolumeSource represents bare host directory volume.
type HostPathVolumeSource struct {
	// Path of the directory on the host.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#hostpath
	Path string `json:"path"`
}

// EmptyDirVolumeSource is temporary directory that shares a pod's lifetime.
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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#emptydir
	Medium StorageMedium `json:"medium,omitempty"`
}

// GlusterfsVolumeSource represents a Glusterfs Mount that lasts the lifetime of a pod.
type GlusterfsVolumeSource struct {
	// EndpointsName is the endpoint name that details Glusterfs topology.
	// More info: http://releases.k8s.io/release-1.1/examples/glusterfs/README.md#create-a-pod
	EndpointsName string `json:"endpoints"`

	// Path is the Glusterfs volume path.
	// More info: http://releases.k8s.io/release-1.1/examples/glusterfs/README.md#create-a-pod
	Path string `json:"path"`

	// ReadOnly here will force the Glusterfs volume to be mounted with read-only permissions.
	// Defaults to false.
	// More info: http://releases.k8s.io/release-1.1/examples/glusterfs/README.md#create-a-pod
	ReadOnly bool `json:"readOnly,omitempty"`
}

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

// RBDVolumeSource represents a Rados Block Device Mount that lasts the lifetime of a pod
type RBDVolumeSource struct {
	// A collection of Ceph monitors.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	CephMonitors []string `json:"monitors"`
	// The rados image name.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	RBDImage string `json:"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".
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#rbd
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	FSType string `json:"fsType,omitempty"`
	// The rados pool name.
	// Default is rbd.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it.
	RBDPool string `json:"pool"`
	// The rados user name.
	// Default is admin.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	RadosUser string `json:"user"`
	// Keyring is the path to key ring for RBDUser.
	// Default is /etc/ceph/keyring.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	Keyring string `json:"keyring"`
	// SecretRef is name of the authentication secret for RBDUser. If provided
	// overrides keyring.
	// Default is empty.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	SecretRef *LocalObjectReference `json:"secretRef"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// More info: http://releases.k8s.io/release-1.1/examples/rbd/README.md#how-to-use-it
	ReadOnly bool `json:"readOnly,omitempty"`
}

// CinderVolumeSource 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.
type CinderVolumeSource struct {
	// volume id used to identify the volume in cinder
	// More info: http://releases.k8s.io/release-1.1/examples/mysql-cinder-pd/README.md
	VolumeID string `json:"volumeID"`
	// Required: Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Only ext3 and ext4 are allowed
	// More info: http://releases.k8s.io/release-1.1/examples/mysql-cinder-pd/README.md
	FSType string `json:"fsType,omitempty"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: http://releases.k8s.io/release-1.1/examples/mysql-cinder-pd/README.md
	ReadOnly bool `json:"readOnly,omitempty"`
}

// CephFSVolumeSource represents a Ceph Filesystem Mount that lasts the lifetime of a pod
type CephFSVolumeSource struct {
	// Required: Monitors is a collection of Ceph monitors
	// More info: http://releases.k8s.io/release-1.1/examples/cephfs/README.md#how-to-use-it
	Monitors []string `json:"monitors"`
	// Optional: User is the rados user name, default is admin
	// More info: http://releases.k8s.io/release-1.1/examples/cephfs/README.md#how-to-use-it
	User string `json:"user,omitempty"`
	// Optional: SecretFile is the path to key ring for User, default is /etc/ceph/user.secret
	// More info: http://releases.k8s.io/release-1.1/examples/cephfs/README.md#how-to-use-it
	SecretFile string `json:"secretFile,omitempty"`
	// Optional: SecretRef is reference to the authentication secret for User, default is empty.
	// More info: http://releases.k8s.io/release-1.1/examples/cephfs/README.md#how-to-use-it
	SecretRef *LocalObjectReference `json:"secretRef,omitempty"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	// More info: http://releases.k8s.io/release-1.1/examples/cephfs/README.md#how-to-use-it
	ReadOnly bool `json:"readOnly,omitempty"`
}

// FlockerVolumeSource represents a Flocker volume mounted by the Flocker agent.
type FlockerVolumeSource struct {
	// Required: the volume name. This is going to be store on metadata -> name on the payload for Flocker
	DatasetName string `json:"datasetName"`
}

const (
	StorageMediumDefault StorageMedium = ""       // use whatever the default is for the node
	StorageMediumMemory  StorageMedium = "Memory" // use memory (tmpfs)
)

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

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

// GCEPersistentDiskVolumeSource represents a Persistent Disk resource in Google Compute Engine.
//
// A GCE PD must exist and be formatted 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.
type GCEPersistentDiskVolumeSource struct {
	// Unique name of the PD resource in GCE. Used to identify the disk in GCE.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	PDName string `json:"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".
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	FSType string `json:"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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	Partition int `json:"partition,omitempty"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#gcepersistentdisk
	ReadOnly bool `json:"readOnly,omitempty"`
}

// Represents a persistent disk resource in AWS.
//
// An Amazon Elastic Block Store (EBS) must already be created, formatted,
// and reside in the same AWS zone as the kubelet before it can be mounted.
// Note: Amazon EBS volumes can be mounted to only one instance at a time.
type AWSElasticBlockStoreVolumeSource struct {
	// Unique ID of the persistent disk resource in AWS (Amazon EBS volume).
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#awselasticblockstore
	VolumeID string `json:"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".
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#awselasticblockstore
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	FSType string `json:"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).
	Partition int `json:"partition,omitempty"`
	// Specify "true" to force and set the ReadOnly property in VolumeMounts to "true".
	// If omitted, the default is "false".
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#awselasticblockstore
	ReadOnly bool `json:"readOnly,omitempty"`
}

// GitRepoVolumeSource represents a volume that is pulled from git when the pod is created.
type GitRepoVolumeSource struct {
	// Repository URL
	Repository string `json:"repository"`
	// Commit hash for the specified revision.
	Revision string `json:"revision"`
}

// SecretVolumeSource adapts a Secret into a VolumeSource.
// More info: http://releases.k8s.io/release-1.1/docs/design/secrets.md
type SecretVolumeSource struct {
	// SecretName is the name of a secret in the pod's namespace.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#secrets
	SecretName string `json:"secretName"`
}

// NFSVolumeSource represents an NFS mount that lasts the lifetime of a pod
type NFSVolumeSource struct {
	// Server is the hostname or IP address of the NFS server.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#nfs
	Server string `json:"server"`

	// Path that is exported by the NFS server.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#nfs
	Path string `json:"path"`

	// ReadOnly here will force
	// the NFS export to be mounted with read-only permissions.
	// Defaults to false.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#nfs
	ReadOnly bool `json:"readOnly,omitempty"`
}

// ISCSIVolumeSource describes an ISCSI Disk can only be mounted as read/write once.
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"`
	// Target iSCSI Qualified Name.
	IQN string `json:"iqn"`
	// iSCSI target lun number.
	Lun int `json:"lun"`
	// 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".
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md#iscsi
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	FSType string `json:"fsType"`
	// ReadOnly here will force the ReadOnly setting in VolumeMounts.
	// Defaults to false.
	ReadOnly bool `json:"readOnly,omitempty"`
}

// A Fibre Channel Disk can only be mounted as read/write once.
type FCVolumeSource struct {
	// Required: FC target world wide names (WWNs)
	TargetWWNs []string `json:"targetWWNs"`
	// Required: FC target lun number
	Lun *int `json:"lun"`
	// Required: Filesystem type to mount.
	// Must be a filesystem type supported by the host operating system.
	// Ex. "ext4", "xfs", "ntfs"
	// TODO: how do we prevent errors in the filesystem from compromising the machine
	FSType string `json:"fsType"`
	// Optional: Defaults to false (read/write). ReadOnly here will force
	// the ReadOnly setting in VolumeMounts.
	ReadOnly bool `json:"readOnly,omitempty"`
}

// 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.
	Name string `json:"name,omitempty"`
	// 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.
	HostPort int `json:"hostPort,omitempty"`
	// Number of port to expose on the pod's IP address.
	// This must be a valid port number, 0 < x < 65536.
	ContainerPort int `json:"containerPort"`
	// Protocol for port. Must be UDP or TCP.
	// Defaults to "TCP".
	Protocol Protocol `json:"protocol,omitempty"`
	// What host IP to bind the external port to.
	HostIP string `json:"hostIP,omitempty"`
}

// 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"`
	// Mounted read-only if true, read-write otherwise (false or unspecified).
	// Defaults to false.
	ReadOnly bool `json:"readOnly,omitempty"`
	// Path within the container at which the volume should be mounted.
	MountPath string `json:"mountPath"`
}

// 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"`

	// 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 "".
	Value string `json:"value,omitempty"`
	// Source for the environment variable's value. Cannot be used if value is not empty.
	ValueFrom *EnvVarSource `json:"valueFrom,omitempty"`
}

// EnvVarSource represents a source for the value of an EnvVar.
type EnvVarSource struct {
	// Selects a field of the pod. Only name and namespace are supported.
	FieldRef *ObjectFieldSelector `json:"fieldRef"`
}

// 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".
	APIVersion string `json:"apiVersion,omitempty"`
	// Path of the field to select in the specified API version.
	FieldPath string `json:"fieldPath"`
}

// HTTPGetAction describes an action based on HTTP Get requests.
type HTTPGetAction struct {
	// Path to access on the HTTP server.
	Path string `json:"path,omitempty"`
	// 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 util.IntOrString `json:"port"`
	// Host name to connect to, defaults to the pod IP.
	Host string `json:"host,omitempty"`
	// Scheme to use for connecting to the host.
	// Defaults to HTTP.
	Scheme URIScheme `json:"scheme,omitempty"`
}

// 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 util.IntOrString `json:"port"`
}

// 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.
	Command []string `json:"command,omitempty"`
}

// Probe describes a liveness probe to be examined to the container.
type Probe struct {
	// The action taken to determine the health of a container
	Handler `json:",inline"`
	// Number of seconds after the container has started before liveness probes are initiated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#container-probes
	InitialDelaySeconds int64 `json:"initialDelaySeconds,omitempty"`
	// Number of seconds after which liveness probes timeout.
	// Defaults to 1 second.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#container-probes
	TimeoutSeconds int64 `json:"timeoutSeconds,omitempty"`
}

// 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"
)

// Capability represent POSIX capabilities type
type Capability string

// Adds and removes POSIX capabilities from running containers.
type Capabilities struct {
	// Added capabilities
	Add []Capability `json:"add,omitempty"`
	// Removed capabilities
	Drop []Capability `json:"drop,omitempty"`
}

// ResourceRequirements describes the compute resource requirements.
type ResourceRequirements struct {
	// Limits describes the maximum amount of compute resources allowed.
	// More info: http://releases.k8s.io/release-1.1/docs/design/resources.md#resource-specifications
	Limits ResourceList `json:"limits,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/design/resources.md#resource-specifications
	Requests ResourceList `json:"requests,omitempty"`
}

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"`
	// Docker image name.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/images.md
	Image string `json:"image,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/containers.md#containers-and-commands
	Command []string `json:"command,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/containers.md#containers-and-commands
	Args []string `json:"args,omitempty"`
	// Container's working directory.
	// Defaults to Docker's default. D
	// efaults to image's default.
	// Cannot be updated.
	WorkingDir string `json:"workingDir,omitempty"`
	// List of ports to expose from the container.
	// Cannot be updated.
	Ports []ContainerPort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"containerPort"`
	// List of environment variables to set in the container.
	// Cannot be updated.
	Env []EnvVar `json:"env,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// Compute Resources required by this container.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#resources
	Resources ResourceRequirements `json:"resources,omitempty"`
	// Pod volumes to mount into the container's filesyste.
	// Cannot be updated.
	VolumeMounts []VolumeMount `json:"volumeMounts,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// Periodic probe of container liveness.
	// Container will be restarted if the probe fails.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#container-probes
	LivenessProbe *Probe `json:"livenessProbe,omitempty"`
	// Periodic probe of container service readiness.
	// Container will be removed from service endpoints if the probe fails.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#container-probes
	ReadinessProbe *Probe `json:"readinessProbe,omitempty"`
	// Actions that the management system should take in response to container lifecycle events.
	// Cannot be updated.
	Lifecycle *Lifecycle `json:"lifecycle,omitempty"`
	// 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.
	// Defaults to /dev/termination-log.
	// Cannot be updated.
	TerminationMessagePath string `json:"terminationMessagePath,omitempty"`
	// Image pull policy.
	// One of Always, Never, IfNotPresent.
	// Defaults to Always if :latest tag is specified, or IfNotPresent otherwise.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/images.md#updating-images
	ImagePullPolicy PullPolicy `json:"imagePullPolicy,omitempty"`
	// Security options the pod should run with.
	// More info: http://releases.k8s.io/release-1.1/docs/design/security_context.md
	SecurityContext *SecurityContext `json:"securityContext,omitempty"`

	// 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.
	Stdin bool `json:"stdin,omitempty"`
	// 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
	StdinOnce bool `json:"stdinOnce,omitempty"`
	// Whether this container should allocate a TTY for itself, also requires 'stdin' to be true.
	// Default is false.
	TTY bool `json:"tty,omitempty"`
}

// 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.
	Exec *ExecAction `json:"exec,omitempty"`
	// HTTPGet specifies the http request to perform.
	HTTPGet *HTTPGetAction `json:"httpGet,omitempty"`
	// TCPSocket specifies an action involving a TCP port.
	// TCP hooks not yet supported
	// TODO: implement a realistic TCP lifecycle hook
	TCPSocket *TCPSocketAction `json:"tcpSocket,omitempty"`
}

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/container-environment.md#hook-details
	PostStart *Handler `json:"postStart,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/container-environment.md#hook-details
	PreStop *Handler `json:"preStop,omitempty"`
}

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.
	Reason string `json:"reason,omitempty"`
	// Message regarding why the container is not yet running.
	Message string `json:"message,omitempty"`
}

// ContainerStateRunning is a running state of a container.
type ContainerStateRunning struct {
	// Time at which the container was last (re-)started
	StartedAt unversioned.Time `json:"startedAt,omitempty"`
}

// ContainerStateTerminated is a terminated state of a container.
type ContainerStateTerminated struct {
	// Exit status from the last termination of the container
	ExitCode int `json:"exitCode"`
	// Signal from the last termination of the container
	Signal int `json:"signal,omitempty"`
	// (brief) reason from the last termination of the container
	Reason string `json:"reason,omitempty"`
	// Message regarding the last termination of the container
	Message string `json:"message,omitempty"`
	// Time at which previous execution of the container started
	StartedAt unversioned.Time `json:"startedAt,omitempty"`
	// Time at which the container last terminated
	FinishedAt unversioned.Time `json:"finishedAt,omitempty"`
	// Container's ID in the format 'docker://<container_id>'
	ContainerID string `json:"containerID,omitempty"`
}

// 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
	Waiting *ContainerStateWaiting `json:"waiting,omitempty"`
	// Details about a running container
	Running *ContainerStateRunning `json:"running,omitempty"`
	// Details about a terminated container
	Terminated *ContainerStateTerminated `json:"terminated,omitempty"`
}

// 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"`
	// Details about the container's current condition.
	State ContainerState `json:"state,omitempty"`
	// Details about the container's last termination condition.
	LastTerminationState ContainerState `json:"lastState,omitempty"`
	// Specifies whether the container has passed its readiness probe.
	Ready bool `json:"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 int `json:"restartCount"`
	// The image the container is running.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/images.md
	// TODO(dchen1107): Which image the container is running with?
	Image string `json:"image"`
	// ImageID of the container's image.
	ImageID string `json:"imageID"`
	// Container's ID in the format 'docker://<container_id>'.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/container-environment.md#container-information
	ContainerID string `json:"containerID,omitempty"`
}

// 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 (
	// 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"
)

// PodCondition contains details for the current condition of this pod.
type PodCondition struct {
	// Type is the type of the condition.
	// Currently only Ready.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#pod-conditions
	Type PodConditionType `json:"type"`
	// Status is the status of the condition.
	// Can be True, False, Unknown.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#pod-conditions
	Status ConditionStatus `json:"status"`
	// Last time we probed the condition.
	LastProbeTime unversioned.Time `json:"lastProbeTime,omitempty"`
	// Last time the condition transitioned from one status to another.
	LastTransitionTime unversioned.Time `json:"lastTransitionTime,omitempty"`
	// Unique, one-word, CamelCase reason for the condition's last transition.
	Reason string `json:"reason,omitempty"`
	// Human-readable message indicating details about last transition.
	Message string `json:"message,omitempty"`
}

// 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 (
	// DNSClusterFirst 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.
	DNSClusterFirst DNSPolicy = "ClusterFirst"

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

	DefaultTerminationGracePeriodSeconds = 30
)

// 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: http://releases.k8s.io/release-1.1/docs/user-guide/volumes.md
	Volumes []Volume `json:"volumes,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// 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.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/containers.md
	Containers []Container `json:"containers" patchStrategy:"merge" patchMergeKey:"name"`
	// Restart policy for all containers within the pod.
	// One of Always, OnFailure, Never.
	// Default to Always.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#restartpolicy
	RestartPolicy RestartPolicy `json:"restartPolicy,omitempty"`
	// 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.
	TerminationGracePeriodSeconds *int64 `json:"terminationGracePeriodSeconds,omitempty"`
	// 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.
	ActiveDeadlineSeconds *int64 `json:"activeDeadlineSeconds,omitempty"`
	// Set DNS policy for containers within the pod.
	// One of 'ClusterFirst' or 'Default'.
	// Defaults to "ClusterFirst".
	DNSPolicy DNSPolicy `json:"dnsPolicy,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/node-selection/README.md
	NodeSelector map[string]string `json:"nodeSelector,omitempty"`

	// ServiceAccountName is the name of the ServiceAccount to use to run this pod.
	// More info: http://releases.k8s.io/release-1.1/docs/design/service_accounts.md
	ServiceAccountName string `json:"serviceAccountName,omitempty"`
	// DeprecatedServiceAccount is a depreciated alias for ServiceAccountName.
	// Deprecated: Use serviceAccountName instead.
	DeprecatedServiceAccount string `json:"serviceAccount,omitempty"`

	// 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.
	NodeName string `json:"nodeName,omitempty"`
	// 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.
	HostNetwork bool `json:"hostNetwork,omitempty"`
	// Use the host's pid namespace.
	// Optional: Default to false.
	HostPID bool `json:"hostPID,omitempty"`
	// Use the host's ipc namespace.
	// Optional: Default to false.
	HostIPC bool `json:"hostIPC,omitempty"`
	// 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: http://releases.k8s.io/release-1.1/docs/user-guide/images.md#specifying-imagepullsecrets-on-a-pod
	ImagePullSecrets []LocalObjectReference `json:"imagePullSecrets,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
}

// PodStatus represents information about the status of a pod. Status may trail the actual
// state of a system.
type PodStatus struct {
	// Current condition of the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#pod-phase
	Phase PodPhase `json:"phase,omitempty"`
	// Current service state of pod.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#pod-conditions
	Conditions []PodCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
	// A human readable message indicating details about why the pod is in this condition.
	Message string `json:"message,omitempty"`
	// A brief CamelCase message indicating details about why the pod is in this state.
	// e.g. 'OutOfDisk'
	Reason string `json:"reason,omitempty"`

	// IP address of the host to which the pod is assigned. Empty if not yet scheduled.
	HostIP string `json:"hostIP,omitempty"`
	// IP address allocated to the pod. Routable at least within the cluster.
	// Empty if not yet allocated.
	PodIP string `json:"podIP,omitempty"`

	// RFC 3339 date and time at which the object was acknowledged by the Kubelet.
	// This is before the Kubelet pulled the container image(s) for the pod.
	StartTime *unversioned.Time `json:"startTime,omitempty"`

	// The list has one entry per container in the manifest. Each entry is currently the output
	// of `docker inspect`.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pod-states.md#container-statuses
	ContainerStatuses []ContainerStatus `json:"containerStatuses,omitempty"`
}

// PodStatusResult is a wrapper for PodStatus returned by kubelet that can be encode/decoded
type PodStatusResult struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`
	// Most recently observed status of the pod.
	// This data may not be up to date.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status PodStatus `json:"status,omitempty"`
}

// Pod is a collection of containers that can run on a host. This resource is created
// by clients and scheduled onto hosts.
type Pod struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Specification of the desired behavior of the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec PodSpec `json:"spec,omitempty"`

	// Most recently observed status of the pod.
	// This data may not be up to date.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status PodStatus `json:"status,omitempty"`
}

// PodList is a list of Pods.
type PodList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of pods.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/pods.md
	Items []Pod `json:"items"`
}

// PodTemplateSpec describes the data a pod should have when created from a template
type PodTemplateSpec struct {
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Specification of the desired behavior of the pod.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec PodSpec `json:"spec,omitempty"`
}

// PodTemplate describes a template for creating copies of a predefined pod.
type PodTemplate struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Template defines the pods that will be created from this pod template.
	// http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Template PodTemplateSpec `json:"template,omitempty"`
}

// PodTemplateList is a list of PodTemplates.
type PodTemplateList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of pod templates
	Items []PodTemplate `json:"items"`
}

// ReplicationControllerSpec is the specification of a replication controller.
type ReplicationControllerSpec struct {
	// Replicas is the number of desired replicas.
	// This is a pointer to distinguish between explicit zero and unspecified.
	// Defaults to 1.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/replication-controller.md#what-is-a-replication-controller
	Replicas *int `json:"replicas,omitempty"`

	// Selector is a label query over pods that should match the Replicas count.
	// If Selector is empty, it is defaulted to the labels present on the Pod template.
	// Label keys and values that must match in order to be controlled by this replication
	// controller, if empty defaulted to labels on Pod template.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md#label-selectors
	Selector map[string]string `json:"selector,omitempty"`

	// TemplateRef is a reference to an object that describes the pod that will be created if
	// insufficient replicas are detected.
	// Reference to an object that describes the pod that will be created if insufficient replicas are detected.
	// TemplateRef *ObjectReference `json:"templateRef,omitempty"`

	// Template is the object that describes the pod that will be created if
	// insufficient replicas are detected. This takes precedence over a TemplateRef.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/replication-controller.md#pod-template
	Template *PodTemplateSpec `json:"template,omitempty"`
}

// ReplicationControllerStatus represents the current status of a replication
// controller.
type ReplicationControllerStatus struct {
	// Replicas is the most recently oberved number of replicas.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/replication-controller.md#what-is-a-replication-controller
	Replicas int `json:"replicas"`

	// ObservedGeneration reflects the generation of the most recently observed replication controller.
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
}

// ReplicationController represents the configuration of a replication controller.
type ReplicationController struct {
	unversioned.TypeMeta `json:",inline"`

	// If the Labels of a ReplicationController are empty, they are defaulted to
	// be the same as the Pod(s) that the replication controller manages.
	// Standard object's metadata. More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the specification of the desired behavior of the replication controller.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec ReplicationControllerSpec `json:"spec,omitempty"`

	// Status is the most recently observed status of the replication controller.
	// This data may be out of date by some window of time.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status ReplicationControllerStatus `json:"status,omitempty"`
}

// ReplicationControllerList is a collection of replication controllers.
type ReplicationControllerList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of replication controllers.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/replication-controller.md
	Items []ReplicationController `json:"items"`
}

// Session Affinity Type string
type ServiceAffinity string

const (
	// ServiceAffinityClientIP is the Client IP based.
	ServiceAffinityClientIP ServiceAffinity = "ClientIP"

	// ServiceAffinityNone - no session affinity.
	ServiceAffinityNone ServiceAffinity = "None"
)

// Service Type string describes ingress methods for a service
type ServiceType string

const (
	// ServiceTypeClusterIP means a service will only be accessible inside the
	// cluster, via the cluster IP.
	ServiceTypeClusterIP ServiceType = "ClusterIP"

	// ServiceTypeNodePort means a service will be exposed on one port of
	// every node, in addition to 'ClusterIP' type.
	ServiceTypeNodePort ServiceType = "NodePort"

	// ServiceTypeLoadBalancer means a service will be exposed via an
	// external load balancer (if the cloud provider supports it), in addition
	// to 'NodePort' type.
	ServiceTypeLoadBalancer ServiceType = "LoadBalancer"
)

// ServiceStatus represents the current status of a service.
type ServiceStatus struct {
	// LoadBalancer contains the current status of the load-balancer,
	// if one is present.
	LoadBalancer LoadBalancerStatus `json:"loadBalancer,omitempty"`
}

// LoadBalancerStatus represents the status of a load-balancer.
type LoadBalancerStatus struct {
	// Ingress is a list containing ingress points for the load-balancer.
	// Traffic intended for the service should be sent to these ingress points.
	Ingress []LoadBalancerIngress `json:"ingress,omitempty"`
}

// LoadBalancerIngress represents the status of a load-balancer ingress point:
// traffic intended for the service should be sent to an ingress point.
type LoadBalancerIngress struct {
	// IP is set for load-balancer ingress points that are IP based
	// (typically GCE or OpenStack load-balancers)
	IP string `json:"ip,omitempty"`

	// Hostname is set for load-balancer ingress points that are DNS based
	// (typically AWS load-balancers)
	Hostname string `json:"hostname,omitempty"`
}

// ServiceSpec describes the attributes that a user creates on a service.
type ServiceSpec struct {
	// The list of ports that are exposed by this service.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#virtual-ips-and-service-proxies
	Ports []ServicePort `json:"ports"`

	// This service will route traffic to pods having labels matching this selector.
	// Label keys and values that must match in order to receive traffic for this service.
	// If empty, all pods are selected, if not specified, endpoints must be manually specified.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#overview
	Selector map[string]string `json:"selector,omitempty"`

	// ClusterIP is usually assigned by the master and is the IP address of the service.
	// If specified, it will be allocated to the service if it is unused
	// or else creation of the service will fail.
	// Valid values are None, empty string (""), or a valid IP address.
	// 'None' can be specified for a headless service when proxying is not required.
	// Cannot be updated.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#virtual-ips-and-service-proxies
	ClusterIP string `json:"clusterIP,omitempty"`

	// Type of exposed service. Must be ClusterIP, NodePort, or LoadBalancer.
	// Defaults to ClusterIP.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#external-services
	Type ServiceType `json:"type,omitempty"`

	// externalIPs is a list of IP addresses for which nodes in the cluster
	// will also accept traffic for this service.  These IPs are not managed by
	// Kubernetes.  The user is responsible for ensuring that traffic arrives
	// at a node with this IP.  A common example is external load-balancers
	// that are not part of the Kubernetes system.  A previous form of this
	// functionality exists as the deprecatedPublicIPs field.  When using this
	// field, callers should also clear the deprecatedPublicIPs field.
	ExternalIPs []string `json:"externalIPs,omitempty"`

	// deprecatedPublicIPs is deprecated and replaced by the externalIPs field
	// with almost the exact same semantics.  This field is retained in the v1
	// API for compatibility until at least 8/20/2016.  It will be removed from
	// any new API revisions.  If both deprecatedPublicIPs *and* externalIPs are
	// set, deprecatedPublicIPs is used.
	DeprecatedPublicIPs []string `json:"deprecatedPublicIPs,omitempty"`

	// Supports "ClientIP" and "None". Used to maintain session affinity.
	// Enable client IP based session affinity.
	// Must be ClientIP or None.
	// Defaults to None.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#virtual-ips-and-service-proxies
	SessionAffinity ServiceAffinity `json:"sessionAffinity,omitempty"`

	// Only applies to Service Type: LoadBalancer
	// LoadBalancer will get created with the IP specified in this field.
	// This feature depends on whether the underlying cloud-provider supports specifying
	// the loadBalancerIP when a load balancer is created.
	// This field will be ignored if the cloud-provider does not support the feature.
	LoadBalancerIP string `json:"loadBalancerIP,omitempty"`
}

// ServicePort conatins information on service's port.
type ServicePort struct {
	// The name of this port within the service. This must be a DNS_LABEL.
	// All ports within a ServiceSpec must have unique names. This maps to
	// the 'Name' field in EndpointPort objects.
	// Optional if only one ServicePort is defined on this service.
	Name string `json:"name,omitempty"`

	// The IP protocol for this port. Supports "TCP" and "UDP".
	// Default is TCP.
	Protocol Protocol `json:"protocol,omitempty"`

	// The port that will be exposed by this service.
	Port int `json:"port"`

	// Number or name of the port to access on the pods targeted by the service.
	// Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME.
	// If this is a string, it will be looked up as a named port in the
	// target Pod's container ports. If this is not specified, the value
	// of Port is used (an identity map).
	// Defaults to the service port.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#defining-a-service
	TargetPort util.IntOrString `json:"targetPort,omitempty"`

	// The port on each node on which this service is exposed when type=NodePort or LoadBalancer.
	// Usually assigned by the system. If specified, it will be allocated to the service
	// if unused or else creation of the service will fail.
	// Default is to auto-allocate a port if the ServiceType of this Service requires one.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/services.md#type--nodeport
	NodePort int `json:"nodePort,omitempty"`
}

// Service is a named abstraction of software service (for example, mysql) consisting of local port
// (for example 3306) that the proxy listens on, and the selector that determines which pods
// will answer requests sent through the proxy.
type Service struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the behavior of a service.
	// http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec ServiceSpec `json:"spec,omitempty"`

	// Most recently observed status of the service.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status ServiceStatus `json:"status,omitempty"`
}

const (
	// ClusterIPNone - do not assign a cluster IP
	// no proxying required and no environment variables should be created for pods
	ClusterIPNone = "None"
)

// ServiceList holds a list of services.
type ServiceList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of services
	Items []Service `json:"items"`
}

// ServiceAccount binds together:
// * a name, understood by users, and perhaps by peripheral systems, for an identity
// * a principal that can be authenticated and authorized
// * a set of secrets
type ServiceAccount struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Secrets is the list of secrets allowed to be used by pods running using this ServiceAccount.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/secrets.md
	Secrets []ObjectReference `json:"secrets,omitempty" patchStrategy:"merge" patchMergeKey:"name"`

	// ImagePullSecrets is a list of references to secrets in the same namespace to use for pulling any images
	// in pods that reference this ServiceAccount. ImagePullSecrets are distinct from Secrets because Secrets
	// can be mounted in the pod, but ImagePullSecrets are only accessed by the kubelet.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/secrets.md#manually-specifying-an-imagepullsecret
	ImagePullSecrets []LocalObjectReference `json:"imagePullSecrets,omitempty"`
}

// ServiceAccountList is a list of ServiceAccount objects
type ServiceAccountList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of ServiceAccounts.
	// More info: http://releases.k8s.io/release-1.1/docs/design/service_accounts.md#service-accounts
	Items []ServiceAccount `json:"items"`
}

// Endpoints is a collection of endpoints that implement the actual service. Example:
//   Name: "mysvc",
//   Subsets: [
//     {
//       Addresses: [{"ip": "10.10.1.1"}, {"ip": "10.10.2.2"}],
//       Ports: [{"name": "a", "port": 8675}, {"name": "b", "port": 309}]
//     },
//     {
//       Addresses: [{"ip": "10.10.3.3"}],
//       Ports: [{"name": "a", "port": 93}, {"name": "b", "port": 76}]
//     },
//  ]
type Endpoints struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// The set of all endpoints is the union of all subsets. Addresses are placed into
	// subsets according to the IPs they share. A single address with multiple ports,
	// some of which are ready and some of which are not (because they come from
	// different containers) will result in the address being displayed in different
	// subsets for the different ports. No address will appear in both Addresses and
	// NotReadyAddresses in the same subset.
	// Sets of addresses and ports that comprise a service.
	Subsets []EndpointSubset `json:"subsets"`
}

// EndpointSubset is a group of addresses with a common set of ports. The
// expanded set of endpoints is the Cartesian product of Addresses x Ports.
// For example, given:
//   {
//     Addresses: [{"ip": "10.10.1.1"}, {"ip": "10.10.2.2"}],
//     Ports:     [{"name": "a", "port": 8675}, {"name": "b", "port": 309}]
//   }
// The resulting set of endpoints can be viewed as:
//     a: [ 10.10.1.1:8675, 10.10.2.2:8675 ],
//     b: [ 10.10.1.1:309, 10.10.2.2:309 ]
type EndpointSubset struct {
	// IP addresses which offer the related ports that are marked as ready. These endpoints
	// should be considered safe for load balancers and clients to utilize.
	Addresses []EndpointAddress `json:"addresses,omitempty"`
	// IP addresses which offer the related ports but are not currently marked as ready
	// because they have not yet finished starting, have recently failed a readiness check,
	// or have recently failed a liveness check.
	NotReadyAddresses []EndpointAddress `json:"notReadyAddresses,omitempty"`
	// Port numbers available on the related IP addresses.
	Ports []EndpointPort `json:"ports,omitempty"`
}

// EndpointAddress is a tuple that describes single IP address.
type EndpointAddress struct {
	// The IP of this endpoint.
	// May not be loopback (127.0.0.0/8), link-local (169.254.0.0/16),
	// or link-local multicast ((224.0.0.0/24).
	// TODO: This should allow hostname or IP, See #4447.
	IP string `json:"ip"`

	// Reference to object providing the endpoint.
	TargetRef *ObjectReference `json:"targetRef,omitempty"`
}

// EndpointPort is a tuple that describes a single port.
type EndpointPort struct {
	// The name of this port (corresponds to ServicePort.Name).
	// Must be a DNS_LABEL.
	// Optional only if one port is defined.
	Name string `json:"name,omitempty"`

	// The port number of the endpoint.
	Port int `json:"port"`

	// The IP protocol for this port.
	// Must be UDP or TCP.
	// Default is TCP.
	Protocol Protocol `json:"protocol,omitempty"`
}

// EndpointsList is a list of endpoints.
type EndpointsList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of endpoints.
	Items []Endpoints `json:"items"`
}

// NodeSpec describes the attributes that a node is created with.
type NodeSpec struct {
	// PodCIDR represents the pod IP range assigned to the node.
	PodCIDR string `json:"podCIDR,omitempty"`
	// External ID of the node assigned by some machine database (e.g. a cloud provider).
	// Deprecated.
	ExternalID string `json:"externalID,omitempty"`
	// ID of the node assigned by the cloud provider in the format: <ProviderName>://<ProviderSpecificNodeID>
	ProviderID string `json:"providerID,omitempty"`
	// Unschedulable controls node schedulability of new pods. By default, node is schedulable.
	// More info: http://releases.k8s.io/release-1.1/docs/admin/node.md#manual-node-administration"`
	Unschedulable bool `json:"unschedulable,omitempty"`
}

// DaemonEndpoint contains information about a single Daemon endpoint.
type DaemonEndpoint struct {
	// Port number of the given endpoint.
	Port int `json:port`
}

// NodeDaemonEndpoints lists ports opened by daemons running on the Node.
type NodeDaemonEndpoints struct {
	// Endpoint on which Kubelet is listening.
	KubeletEndpoint DaemonEndpoint `json:"kubeletEndpoint,omitempty"`
}

// NodeSystemInfo is a set of ids/uuids to uniquely identify the node.
type NodeSystemInfo struct {
	// Machine ID reported by the node.
	MachineID string `json:"machineID"`
	// System UUID reported by the node.
	SystemUUID string `json:"systemUUID"`
	// Boot ID reported by the node.
	BootID string `json:"bootID"`
	// Kernel Version reported by the node from 'uname -r' (e.g. 3.16.0-0.bpo.4-amd64).
	KernelVersion string `json:"kernelVersion"`
	// OS Image reported by the node from /etc/os-release (e.g. Debian GNU/Linux 7 (wheezy)).
	OsImage string `json:"osImage"`
	// ContainerRuntime Version reported by the node through runtime remote API (e.g. docker://1.5.0).
	ContainerRuntimeVersion string `json:"containerRuntimeVersion"`
	// Kubelet Version reported by the node.
	KubeletVersion string `json:"kubeletVersion"`
	// KubeProxy Version reported by the node.
	KubeProxyVersion string `json:"kubeProxyVersion"`
}

// NodeStatus is information about the current status of a node.
type NodeStatus struct {
	// Capacity represents the available resources of a node.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/persistent-volumes.md#capacity for more details.
	Capacity ResourceList `json:"capacity,omitempty"`
	// NodePhase is the recently observed lifecycle phase of the node.
	// More info: http://releases.k8s.io/release-1.1/docs/admin/node.md#node-phase
	Phase NodePhase `json:"phase,omitempty"`
	// Conditions is an array of current observed node conditions.
	// More info: http://releases.k8s.io/release-1.1/docs/admin/node.md#node-condition
	Conditions []NodeCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
	// List of addresses reachable to the node.
	// Queried from cloud provider, if available.
	// More info: http://releases.k8s.io/release-1.1/docs/admin/node.md#node-addresses
	Addresses []NodeAddress `json:"addresses,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
	// Endpoints of daemons running on the Node.
	DaemonEndpoints NodeDaemonEndpoints `json:"daemonEndpoints,omitempty"`
	// Set of ids/uuids to uniquely identify the node.
	// More info: http://releases.k8s.io/release-1.1/docs/admin/node.md#node-info
	NodeInfo NodeSystemInfo `json:"nodeInfo,omitempty"`
}

type NodePhase string

// These are the valid phases of node.
const (
	// NodePending means the node has been created/added by the system, but not configured.
	NodePending NodePhase = "Pending"
	// NodeRunning means the node has been configured and has Kubernetes components running.
	NodeRunning NodePhase = "Running"
	// NodeTerminated means the node has been removed from the cluster.
	NodeTerminated NodePhase = "Terminated"
)

type NodeConditionType string

// These are valid conditions of node. Currently, we don't have enough information to decide
// node condition. In the future, we will add more. The proposed set of conditions are:
// NodeReachable, NodeLive, NodeReady, NodeSchedulable, NodeRunnable.
const (
	// NodeReady means kubelet is healthy and ready to accept pods.
	NodeReady NodeConditionType = "Ready"
	// NodeOutOfDisk means the kubelet will not accept new pods due to insufficient free disk
	// space on the node.
	NodeOutOfDisk NodeConditionType = "OutOfDisk"
)

// NodeCondition contains condition infromation for a node.
type NodeCondition struct {
	// Type of node condition, currently only Ready.
	Type NodeConditionType `json:"type"`
	// Status of the condition, one of True, False, Unknown.
	Status ConditionStatus `json:"status"`
	// Last time we got an update on a given condition.
	LastHeartbeatTime unversioned.Time `json:"lastHeartbeatTime,omitempty"`
	// Last time the condition transit from one status to another.
	LastTransitionTime unversioned.Time `json:"lastTransitionTime,omitempty"`
	// (brief) reason for the condition's last transition.
	Reason string `json:"reason,omitempty"`
	// Human readable message indicating details about last transition.
	Message string `json:"message,omitempty"`
}

type NodeAddressType string

// These are valid address type of node.
const (
	NodeHostName   NodeAddressType = "Hostname"
	NodeExternalIP NodeAddressType = "ExternalIP"
	NodeInternalIP NodeAddressType = "InternalIP"
)

// NodeAddress contains information for the node's address.
type NodeAddress struct {
	// Node address type, one of Hostname, ExternalIP or InternalIP.
	Type NodeAddressType `json:"type"`
	// The node address.
	Address string `json:"address"`
}

// ResourceName is the name identifying various resources in a ResourceList.
type ResourceName string

const (
	// CPU, in cores. (500m = .5 cores)
	ResourceCPU ResourceName = "cpu"
	// Memory, in bytes. (500Gi = 500GiB = 500 * 1024 * 1024 * 1024)
	ResourceMemory ResourceName = "memory"
	// Volume size, in bytes (e,g. 5Gi = 5GiB = 5 * 1024 * 1024 * 1024)
	ResourceStorage ResourceName = "storage"
)

// ResourceList is a set of (resource name, quantity) pairs.
type ResourceList map[ResourceName]resource.Quantity

// Node is a worker node in Kubernetes, formerly known as minion.
// Each node will have a unique identifier in the cache (i.e. in etcd).
type Node struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the behavior of a node.
	// http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec NodeSpec `json:"spec,omitempty"`

	// Most recently observed status of the node.
	// Populated by the system.
	// Read-only.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status NodeStatus `json:"status,omitempty"`
}

// NodeList is the whole list of all Nodes which have been registered with master.
type NodeList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of nodes
	Items []Node `json:"items"`
}

type FinalizerName string

// These are internal finalizer values to Kubernetes, must be qualified name unless defined here
const (
	FinalizerKubernetes FinalizerName = "kubernetes"
)

// NamespaceSpec describes the attributes on a Namespace.
type NamespaceSpec struct {
	// Finalizers is an opaque list of values that must be empty to permanently remove object from storage.
	// More info: http://releases.k8s.io/release-1.1/docs/design/namespaces.md#finalizers
	Finalizers []FinalizerName `json:"finalizers,omitempty"`
}

// NamespaceStatus is information about the current status of a Namespace.
type NamespaceStatus struct {
	// Phase is the current lifecycle phase of the namespace.
	// More info: http://releases.k8s.io/release-1.1/docs/design/namespaces.md#phases
	Phase NamespacePhase `json:"phase,omitempty"`
}

type NamespacePhase string

// These are the valid phases of a namespace.
const (
	// NamespaceActive means the namespace is available for use in the system
	NamespaceActive NamespacePhase = "Active"
	// NamespaceTerminating means the namespace is undergoing graceful termination
	NamespaceTerminating NamespacePhase = "Terminating"
)

// Namespace provides a scope for Names.
// Use of multiple namespaces is optional.
type Namespace struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the behavior of the Namespace.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec NamespaceSpec `json:"spec,omitempty"`

	// Status describes the current status of a Namespace.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status NamespaceStatus `json:"status,omitempty"`
}

// NamespaceList is a list of Namespaces.
type NamespaceList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// Items is the list of Namespace objects in the list.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/namespaces.md
	Items []Namespace `json:"items"`
}

// Binding ties one object to another.
// For example, a pod is bound to a node by a scheduler.
type Binding struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// The target object that you want to bind to the standard object.
	Target ObjectReference `json:"target"`
}

// DeleteOptions may be provided when deleting an API object
type DeleteOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// The duration in seconds before the object should be deleted. Value must be non-negative integer.
	// The value zero indicates delete immediately. If this value is nil, the default grace period for the
	// specified type will be used.
	// Defaults to a per object value if not specified. zero means delete immediately.
	GracePeriodSeconds *int64 `json:"gracePeriodSeconds"`
}

// ListOptions is the query options to a standard REST list call.
type ListOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// A selector to restrict the list of returned objects by their labels.
	// Defaults to everything.
	LabelSelector string `json:"labelSelector,omitempty"`
	// A selector to restrict the list of returned objects by their fields.
	// Defaults to everything.
	FieldSelector string `json:"fieldSelector,omitempty"`
	// Watch for changes to the described resources and return them as a stream of
	// add, update, and remove notifications. Specify resourceVersion.
	Watch bool `json:"watch,omitempty"`
	// When specified with a watch call, shows changes that occur after that particular version of a resource.
	// Defaults to changes from the beginning of history.
	ResourceVersion string `json:"resourceVersion,omitempty"`
}

// PodLogOptions is the query options for a Pod's logs REST call.
type PodLogOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// The container for which to stream logs. Defaults to only container if there is one container in the pod.
	Container string `json:"container,omitempty"`
	// Follow the log stream of the pod. Defaults to false.
	Follow bool `json:"follow,omitempty"`
	// Return previous terminated container logs. Defaults to false.
	Previous bool `json:"previous,omitempty"`
	// A relative time in seconds before the current time from which to show logs. If this value
	// precedes the time a pod was started, only logs since the pod start will be returned.
	// If this value is in the future, no logs will be returned.
	// Only one of sinceSeconds or sinceTime may be specified.
	SinceSeconds *int64 `json:"sinceSeconds,omitempty"`
	// An RFC3339 timestamp from which to show logs. If this value
	// preceeds the time a pod was started, only logs since the pod start will be returned.
	// If this value is in the future, no logs will be returned.
	// Only one of sinceSeconds or sinceTime may be specified.
	SinceTime *unversioned.Time `json:"sinceTime,omitempty"`
	// If true, add an RFC3339 or RFC3339Nano timestamp at the beginning of every line
	// of log output. Defaults to false.
	Timestamps bool `json:"timestamps,omitempty"`
	// If set, the number of lines from the end of the logs to show. If not specified,
	// logs are shown from the creation of the container or sinceSeconds or sinceTime
	TailLines *int64 `json:"tailLines,omitempty"`
	// If set, the number of bytes to read from the server before terminating the
	// log output. This may not display a complete final line of logging, and may return
	// slightly more or slightly less than the specified limit.
	LimitBytes *int64 `json:"limitBytes,omitempty"`
}

// PodAttachOptions is the query options to a Pod's remote attach call.
// ---
// TODO: merge w/ PodExecOptions below for stdin, stdout, etc
// and also when we cut V2, we should export a "StreamOptions" or somesuch that contains Stdin, Stdout, Stder and TTY
type PodAttachOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// Stdin if true, redirects the standard input stream of the pod for this call.
	// Defaults to false.
	Stdin bool `json:"stdin,omitempty"`

	// Stdout if true indicates that stdout is to be redirected for the attach call.
	// Defaults to true.
	Stdout bool `json:"stdout,omitempty"`

	// Stderr if true indicates that stderr is to be redirected for the attach call.
	// Defaults to true.
	Stderr bool `json:"stderr,omitempty"`

	// TTY if true indicates that a tty will be allocated for the attach call.
	// This is passed through the container runtime so the tty
	// is allocated on the worker node by the container runtime.
	// Defaults to false.
	TTY bool `json:"tty,omitempty"`

	// The container in which to execute the command.
	// Defaults to only container if there is only one container in the pod.
	Container string `json:"container,omitempty"`
}

// PodExecOptions is the query options to a Pod's remote exec call.
// ---
// TODO: This is largely identical to PodAttachOptions above, make sure they stay in sync and see about merging
// and also when we cut V2, we should export a "StreamOptions" or somesuch that contains Stdin, Stdout, Stder and TTY
type PodExecOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// Redirect the standard input stream of the pod for this call.
	// Defaults to false.
	Stdin bool `json:"stdin,omitempty"`

	// Redirect the standard output stream of the pod for this call.
	// Defaults to true.
	Stdout bool `json:"stdout,omitempty"`

	// Redirect the standard error stream of the pod for this call.
	// Defaults to true.
	Stderr bool `json:"stderr,omitempty"`

	// TTY if true indicates that a tty will be allocated for the exec call.
	// Defaults to false.
	TTY bool `json:"tty,omitempty"`

	// Container in which to execute the command.
	// Defaults to only container if there is only one container in the pod.
	Container string `json:"container,omitempty"`

	// Command is the remote command to execute. argv array. Not executed within a shell.
	Command []string `json:"command"`
}

// PodProxyOptions is the query options to a Pod's proxy call.
type PodProxyOptions struct {
	unversioned.TypeMeta `json:",inline"`

	// Path is the URL path to use for the current proxy request to pod.
	Path string `json:"path,omitempty"`
}

// ObjectReference contains enough information to let you inspect or modify the referred object.
type ObjectReference struct {
	// Kind of the referent.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	Kind string `json:"kind,omitempty"`
	// Namespace of the referent.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/namespaces.md
	Namespace string `json:"namespace,omitempty"`
	// Name of the referent.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#names
	Name string `json:"name,omitempty"`
	// UID of the referent.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#uids
	UID types.UID `json:"uid,omitempty"`
	// API version of the referent.
	APIVersion string `json:"apiVersion,omitempty"`
	// Specific resourceVersion to which this reference is made, if any.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#concurrency-control-and-consistency
	ResourceVersion string `json:"resourceVersion,omitempty"`

	// If referring to a piece of an object instead of an entire object, this string
	// should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2].
	// For example, if the object reference is to a container within a pod, this would take on a value like:
	// "spec.containers{name}" (where "name" refers to the name of the container that triggered
	// the event) or if no container name is specified "spec.containers[2]" (container with
	// index 2 in this pod). This syntax is chosen only to have some well-defined way of
	// referencing a part of an object.
	// TODO: this design is not final and this field is subject to change in the future.
	FieldPath string `json:"fieldPath,omitempty"`
}

// LocalObjectReference contains enough information to let you locate the
// referenced object inside the same namespace.
type LocalObjectReference struct {
	// Name of the referent.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/identifiers.md#names
	// TODO: Add other useful fields. apiVersion, kind, uid?
	Name string `json:"name,omitempty"`
}

// SerializedReference is a reference to serialized object.
type SerializedReference struct {
	unversioned.TypeMeta `json:",inline"`
	// The reference to an object in the system.
	Reference ObjectReference `json:"reference,omitempty"`
}

// EventSource contains information for an event.
type EventSource struct {
	// Component from which the event is generated.
	Component string `json:"component,omitempty"`
	// Host name on which the event is generated.
	Host string `json:"host,omitempty"`
}

// Event is a report of an event somewhere in the cluster.
// TODO: Decide whether to store these separately or with the object they apply to.
type Event struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata"`

	// The object that this event is about.
	InvolvedObject ObjectReference `json:"involvedObject"`

	// This should be a short, machine understandable string that gives the reason
	// for the transition into the object's current status.
	// TODO: provide exact specification for format.
	Reason string `json:"reason,omitempty"`

	// A human-readable description of the status of this operation.
	// TODO: decide on maximum length.
	Message string `json:"message,omitempty"`

	// The component reporting this event. Should be a short machine understandable string.
	Source EventSource `json:"source,omitempty"`

	// The time at which the event was first recorded. (Time of server receipt is in TypeMeta.)
	FirstTimestamp unversioned.Time `json:"firstTimestamp,omitempty"`

	// The time at which the most recent occurrence of this event was recorded.
	LastTimestamp unversioned.Time `json:"lastTimestamp,omitempty"`

	// The number of times this event has occurred.
	Count int `json:"count,omitempty"`
}

// EventList is a list of events.
type EventList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of events
	Items []Event `json:"items"`
}

// List holds a list of objects, which may not be known by the server.
type List struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of objects
	Items []runtime.RawExtension `json:"items"`
}

// LimitType is a type of object that is limited
type LimitType string

const (
	// Limit that applies to all pods in a namespace
	LimitTypePod LimitType = "Pod"
	// Limit that applies to all containers in a namespace
	LimitTypeContainer LimitType = "Container"
)

// LimitRangeItem defines a min/max usage limit for any resource that matches on kind.
type LimitRangeItem struct {
	// Type of resource that this limit applies to.
	Type LimitType `json:"type,omitempty"`
	// Max usage constraints on this kind by resource name.
	Max ResourceList `json:"max,omitempty"`
	// Min usage constraints on this kind by resource name.
	Min ResourceList `json:"min,omitempty"`
	// Default resource requirement limit value by resource name if resource limit is omitted.
	Default ResourceList `json:"default,omitempty"`
	// DefaultRequest is the default resource requirement request value by resource name if resource request is omitted.
	DefaultRequest ResourceList `json:"defaultRequest,omitempty"`
	// MaxLimitRequestRatio if specified, the named resource must have a request and limit that are both non-zero where limit divided by request is less than or equal to the enumerated value; this represents the max burst for the named resource.
	MaxLimitRequestRatio ResourceList `json:"maxLimitRequestRatio,omitempty"`
}

// LimitRangeSpec defines a min/max usage limit for resources that match on kind.
type LimitRangeSpec struct {
	// Limits is the list of LimitRangeItem objects that are enforced.
	Limits []LimitRangeItem `json:"limits"`
}

// LimitRange sets resource usage limits for each kind of resource in a Namespace.
type LimitRange struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the limits enforced.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec LimitRangeSpec `json:"spec,omitempty"`
}

// LimitRangeList is a list of LimitRange items.
type LimitRangeList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// Items is a list of LimitRange objects.
	// More info: http://releases.k8s.io/release-1.1/docs/design/admission_control_limit_range.md
	Items []LimitRange `json:"items"`
}

// The following identify resource constants for Kubernetes object types
const (
	// Pods, number
	ResourcePods ResourceName = "pods"
	// Services, number
	ResourceServices ResourceName = "services"
	// ReplicationControllers, number
	ResourceReplicationControllers ResourceName = "replicationcontrollers"
	// ResourceQuotas, number
	ResourceQuotas ResourceName = "resourcequotas"
	// ResourceSecrets, number
	ResourceSecrets ResourceName = "secrets"
	// ResourcePersistentVolumeClaims, number
	ResourcePersistentVolumeClaims ResourceName = "persistentvolumeclaims"
)

// ResourceQuotaSpec defines the desired hard limits to enforce for Quota.
type ResourceQuotaSpec struct {
	// Hard is the set of desired hard limits for each named resource.
	// More info: http://releases.k8s.io/release-1.1/docs/design/admission_control_resource_quota.md#admissioncontrol-plugin-resourcequota
	Hard ResourceList `json:"hard,omitempty"`
}

// ResourceQuotaStatus defines the enforced hard limits and observed use.
type ResourceQuotaStatus struct {
	// Hard is the set of enforced hard limits for each named resource.
	// More info: http://releases.k8s.io/release-1.1/docs/design/admission_control_resource_quota.md#admissioncontrol-plugin-resourcequota
	Hard ResourceList `json:"hard,omitempty"`
	// Used is the current observed total usage of the resource in the namespace.
	Used ResourceList `json:"used,omitempty"`
}

// ResourceQuota sets aggregate quota restrictions enforced per namespace
type ResourceQuota struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Spec defines the desired quota.
	// http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Spec ResourceQuotaSpec `json:"spec,omitempty"`

	// Status defines the actual enforced quota and its current usage.
	// http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#spec-and-status
	Status ResourceQuotaStatus `json:"status,omitempty"`
}

// ResourceQuotaList is a list of ResourceQuota items.
type ResourceQuotaList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// Items is a list of ResourceQuota objects.
	// More info: http://releases.k8s.io/release-1.1/docs/design/admission_control_resource_quota.md#admissioncontrol-plugin-resourcequota
	Items []ResourceQuota `json:"items"`
}

// Secret holds secret data of a certain type. The total bytes of the values in
// the Data field must be less than MaxSecretSize bytes.
type Secret struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Data contains the secret data. Each key must be a valid DNS_SUBDOMAIN
	// or leading dot followed by valid DNS_SUBDOMAIN.
	// The serialized form of the secret data is a base64 encoded string,
	// representing the arbitrary (possibly non-string) data value here.
	// Described in https://tools.ietf.org/html/rfc4648#section-4
	Data map[string][]byte `json:"data,omitempty"`

	// Used to facilitate programmatic handling of secret data.
	Type SecretType `json:"type,omitempty"`
}

const MaxSecretSize = 1 * 1024 * 1024

type SecretType string

const (
	// SecretTypeOpaque is the default. Arbitrary user-defined data
	SecretTypeOpaque SecretType = "Opaque"

	// SecretTypeServiceAccountToken contains a token that identifies a service account to the API
	//
	// Required fields:
	// - Secret.Annotations["kubernetes.io/service-account.name"] - the name of the ServiceAccount the token identifies
	// - Secret.Annotations["kubernetes.io/service-account.uid"] - the UID of the ServiceAccount the token identifies
	// - Secret.Data["token"] - a token that identifies the service account to the API
	SecretTypeServiceAccountToken SecretType = "kubernetes.io/service-account-token"

	// ServiceAccountNameKey is the key of the required annotation for SecretTypeServiceAccountToken secrets
	ServiceAccountNameKey = "kubernetes.io/service-account.name"
	// ServiceAccountUIDKey is the key of the required annotation for SecretTypeServiceAccountToken secrets
	ServiceAccountUIDKey = "kubernetes.io/service-account.uid"
	// ServiceAccountTokenKey is the key of the required data for SecretTypeServiceAccountToken secrets
	ServiceAccountTokenKey = "token"
	// ServiceAccountKubeconfigKey is the key of the optional kubeconfig data for SecretTypeServiceAccountToken secrets
	ServiceAccountKubeconfigKey = "kubernetes.kubeconfig"
	// ServiceAccountRootCAKey is the key of the optional root certificate authority for SecretTypeServiceAccountToken secrets
	ServiceAccountRootCAKey = "ca.crt"

	// SecretTypeDockercfg contains a dockercfg file that follows the same format rules as ~/.dockercfg
	//
	// Required fields:
	// - Secret.Data[".dockercfg"] - a serialized ~/.dockercfg file
	SecretTypeDockercfg SecretType = "kubernetes.io/dockercfg"

	// DockerConfigKey is the key of the required data for SecretTypeDockercfg secrets
	DockerConfigKey = ".dockercfg"
)

// SecretList is a list of Secret.
type SecretList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// Items is a list of secret objects.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/secrets.md
	Items []Secret `json:"items"`
}

// Type and constants for component health validation.
type ComponentConditionType string

// These are the valid conditions for the component.
const (
	ComponentHealthy ComponentConditionType = "Healthy"
)

// Information about the condition of a component.
type ComponentCondition struct {
	// Type of condition for a component.
	// Valid value: "Healthy"
	Type ComponentConditionType `json:"type"`
	// Status of the condition for a component.
	// Valid values for "Healthy": "True", "False", or "Unknown".
	Status ConditionStatus `json:"status"`
	// Message about the condition for a component.
	// For example, information about a health check.
	Message string `json:"message,omitempty"`
	// Condition error code for a component.
	// For example, a health check error code.
	Error string `json:"error,omitempty"`
}

// ComponentStatus (and ComponentStatusList) holds the cluster validation info.
type ComponentStatus struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// List of component conditions observed
	Conditions []ComponentCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type"`
}

// Status of all the conditions for the component as a list of ComponentStatus objects.
type ComponentStatusList struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard list metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#types-kinds
	unversioned.ListMeta `json:"metadata,omitempty"`

	// List of ComponentStatus objects.
	Items []ComponentStatus `json:"items"`
}

// DownwardAPIVolumeSource represents a volume containing downward API info
type DownwardAPIVolumeSource struct {
	// Items is a list of downward API volume file
	Items []DownwardAPIVolumeFile `json:"items,omitempty"`
}

// DownwardAPIVolumeFile represents information to create the file containing the pod field
type DownwardAPIVolumeFile struct {
	// Required: Path is  the relative path name of the file to be created. Must not be absolute or contain the '..' path. Must be utf-8 encoded. The first item of the relative path must not start with '..'
	Path string `json:"path"`
	// Required: Selects a field of the pod: only annotations, labels, name and namespace are supported.
	FieldRef ObjectFieldSelector `json:"fieldRef"`
}

// SecurityContext holds security configuration that will be applied to a container.
type SecurityContext struct {
	// The linux kernel capabilites that should be added or removed.
	// Default to Container.Capabilities if left unset.
	// More info: http://releases.k8s.io/release-1.1/docs/design/security_context.md#security-context
	Capabilities *Capabilities `json:"capabilities,omitempty"`

	// Run the container in privileged mode.
	// Default to Container.Privileged if left unset.
	// More info: http://releases.k8s.io/release-1.1/docs/design/security_context.md#security-context
	Privileged *bool `json:"privileged,omitempty"`

	// SELinuxOptions are the labels to be applied to the container
	// and volumes.
	// Options that control the SELinux labels applied.
	// More info: http://releases.k8s.io/release-1.1/docs/design/security_context.md#security-context
	SELinuxOptions *SELinuxOptions `json:"seLinuxOptions,omitempty"`

	// RunAsUser is the UID to run the entrypoint of the container process.
	// The user id that runs the first process in the container.
	// More info: http://releases.k8s.io/release-1.1/docs/design/security_context.md#security-context
	RunAsUser *int64 `json:"runAsUser,omitempty"`

	// RunAsNonRoot indicates that the container should be run as a non-root user. If the RunAsUser
	// field is not explicitly set then the kubelet may check the image for a specified user or
	// perform defaulting to specify a user.
	RunAsNonRoot bool `json:"runAsNonRoot,omitempty"`
}

// SELinuxOptions are the labels to be applied to the container
type SELinuxOptions struct {
	// User is a SELinux user label that applies to the container.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md
	User string `json:"user,omitempty"`

	// Role is a SELinux role label that applies to the container.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md
	Role string `json:"role,omitempty"`

	// Type is a SELinux type label that applies to the container.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md
	Type string `json:"type,omitempty"`

	// Level is SELinux level label that applies to the container.
	// More info: http://releases.k8s.io/release-1.1/docs/user-guide/labels.md
	Level string `json:"level,omitempty"`
}

// RangeAllocation is not a public type.
type RangeAllocation struct {
	unversioned.TypeMeta `json:",inline"`
	// Standard object's metadata.
	// More info: http://releases.k8s.io/release-1.1/docs/devel/api-conventions.md#metadata
	ObjectMeta `json:"metadata,omitempty"`

	// Range is string that identifies the range represented by 'data'.
	Range string `json:"range"`
	// Data is a bit array containing all allocated addresses in the previous segment.
	Data []byte `json:"data"`
}