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types.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright 2015 The Kubernetes Authors.
// Copyright Authors of Cilium
package v1
import (
slim_metav1 "github.com/cilium/cilium/pkg/k8s/slim/k8s/apis/meta/v1"
)
const (
// NamespaceDefault means the object is in the default namespace which is applied when not specified by clients
NamespaceDefault string = "default"
// NamespaceAll is the default argument to specify on a context when you want to list or filter resources across all namespaces
NamespaceAll string = ""
// NamespaceNodeLease is the namespace where we place node lease objects (used for node heartbeats)
NamespaceNodeLease string = "kube-node-lease"
)
// Protocol defines network protocols supported for things like container ports.
// +enum
type Protocol string
const (
// ProtocolTCP is the TCP protocol.
ProtocolTCP Protocol = "TCP"
// ProtocolUDP is the UDP protocol.
ProtocolUDP Protocol = "UDP"
// ProtocolSCTP is the SCTP protocol.
ProtocolSCTP Protocol = "SCTP"
)
// ContainerPort represents a network port in a single container.
type ContainerPort struct {
// If specified, this must be an IANA_SVC_NAME and unique within the pod. Each
// named port in a pod must have a unique name. Name for the port that can be
// referred to by services.
// +optional
Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
// Number of port to expose on the host.
// If specified, this must be a valid port number, 0 < x < 65536.
// If HostNetwork is specified, this must match ContainerPort.
// Most containers do not need this.
// +optional
HostPort int32 `json:"hostPort,omitempty" protobuf:"varint,2,opt,name=hostPort"`
// Number of port to expose on the pod's IP address.
// This must be a valid port number, 0 < x < 65536.
ContainerPort int32 `json:"containerPort" protobuf:"varint,3,opt,name=containerPort"`
// Protocol for port. Must be UDP, TCP, or SCTP.
// Defaults to "TCP".
// +optional
// +default="TCP"
Protocol Protocol `json:"protocol,omitempty" protobuf:"bytes,4,opt,name=protocol,casttype=Protocol"`
// What host IP to bind the external port to.
// +optional
HostIP string `json:"hostIP,omitempty" protobuf:"bytes,5,opt,name=hostIP"`
}
// VolumeMount describes a mounting of a Volume within a container.
type VolumeMount struct {
// Path within the container at which the volume should be mounted. Must
// not contain ':'.
MountPath string `json:"mountPath" protobuf:"bytes,3,opt,name=mountPath"`
}
// A single application container that you want to run within a pod.
type Container struct {
// Name of the container specified as a DNS_LABEL.
// Each container in a pod must have a unique name (DNS_LABEL).
// Cannot be updated.
Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
// Container image name.
// More info: https://kubernetes.io/docs/concepts/containers/images
// This field is optional to allow higher level config management to default or override
// container images in workload controllers like Deployments and StatefulSets.
// +optional
Image string `json:"image,omitempty" protobuf:"bytes,2,opt,name=image"`
// List of ports to expose from the container. Exposing a port here gives
// the system additional information about the network connections a
// container uses, but is primarily informational. Not specifying a port here
// DOES NOT prevent that port from being exposed. Any port which is
// listening on the default "0.0.0.0" address inside a container will be
// accessible from the network.
// Cannot be updated.
// +optional
// +patchMergeKey=containerPort
// +patchStrategy=merge
// +listType=map
// +listMapKey=containerPort
// +listMapKey=protocol
Ports []ContainerPort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"containerPort" protobuf:"bytes,6,rep,name=ports"`
// Pod volumes to mount into the container's filesystem.
// Cannot be updated.
// +optional
// +patchMergeKey=mountPath
// +patchStrategy=merge
VolumeMounts []VolumeMount `json:"volumeMounts,omitempty" patchStrategy:"merge" patchMergeKey:"mountPath" protobuf:"bytes,9,rep,name=volumeMounts"`
}
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"
)
// PodPhase is a label for the condition of a pod at the current time.
// +enum
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.
// Deprecated: It isn't being set since 2015 (74da3b14b0c0f658b3bb8d2def5094686d0e9095)
PodUnknown PodPhase = "Unknown"
)
// PodConditionType is a valid value for PodCondition.Type
type PodConditionType string
// These are built-in conditions of pod. An application may use a custom condition not listed here.
const (
// ContainersReady indicates whether all containers in the pod are ready.
ContainersReady PodConditionType = "ContainersReady"
// PodInitialized means that all init containers in the pod have started successfully.
PodInitialized PodConditionType = "Initialized"
// 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"
// PodScheduled represents status of the scheduling process for this pod.
PodScheduled PodConditionType = "PodScheduled"
)
// These are reasons for a pod's transition to a condition.
const (
// PodReasonUnschedulable reason in PodScheduled PodCondition means that the scheduler
// can't schedule the pod right now, for example due to insufficient resources in the cluster.
PodReasonUnschedulable = "Unschedulable"
)
// PodCondition contains details for the current condition of this pod.
type PodCondition struct {
// Type is the type of the condition.
// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-conditions
Type PodConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=PodConditionType"`
// Status is the status of the condition.
// Can be True, False, Unknown.
// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-conditions
Status ConditionStatus `json:"status" protobuf:"bytes,2,opt,name=status,casttype=ConditionStatus"`
// Last time we probed the condition.
// +optional
LastProbeTime slim_metav1.Time `json:"lastProbeTime,omitempty" protobuf:"bytes,3,opt,name=lastProbeTime"`
// Last time the condition transitioned from one status to another.
// +optional
LastTransitionTime slim_metav1.Time `json:"lastTransitionTime,omitempty" protobuf:"bytes,4,opt,name=lastTransitionTime"`
// Unique, one-word, CamelCase reason for the condition's last transition.
// +optional
Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
// Human-readable message indicating details about last transition.
// +optional
Message string `json:"message,omitempty" protobuf:"bytes,6,opt,name=message"`
}
// The node this Taint is attached to has the "effect" on
// any pod that does not tolerate the Taint.
type Taint struct {
// Required. The taint key to be applied to a node.
Key string `json:"key" protobuf:"bytes,1,opt,name=key"`
// The taint value corresponding to the taint key.
// +optional
Value string `json:"value,omitempty" protobuf:"bytes,2,opt,name=value"`
// Required. The effect of the taint on pods
// that do not tolerate the taint.
// Valid effects are NoSchedule, PreferNoSchedule and NoExecute.
Effect TaintEffect `json:"effect" protobuf:"bytes,3,opt,name=effect,casttype=TaintEffect"`
// TimeAdded represents the time at which the taint was added.
// It is only written for NoExecute taints.
// +optional
TimeAdded *slim_metav1.Time `json:"timeAdded,omitempty" protobuf:"bytes,4,opt,name=timeAdded"`
}
// +enum
type TaintEffect string
const (
// Do not allow new pods to schedule onto the node unless they tolerate the taint,
// but allow all pods submitted to Kubelet without going through the scheduler
// to start, and allow all already-running pods to continue running.
// Enforced by the scheduler.
TaintEffectNoSchedule TaintEffect = "NoSchedule"
// Like TaintEffectNoSchedule, but the scheduler tries not to schedule
// new pods onto the node, rather than prohibiting new pods from scheduling
// onto the node entirely. Enforced by the scheduler.
TaintEffectPreferNoSchedule TaintEffect = "PreferNoSchedule"
// NOT YET IMPLEMENTED. TODO: Uncomment field once it is implemented.
// Like TaintEffectNoSchedule, but additionally do not allow pods submitted to
// Kubelet without going through the scheduler to start.
// Enforced by Kubelet and the scheduler.
// TaintEffectNoScheduleNoAdmit TaintEffect = "NoScheduleNoAdmit"
// Evict any already-running pods that do not tolerate the taint.
// Currently enforced by NodeController.
TaintEffectNoExecute TaintEffect = "NoExecute"
)
// PodSpec is a description of a pod.
type PodSpec struct {
// List of initialization containers belonging to the pod.
// Init containers are executed in order prior to containers being started. If any
// init container fails, the pod is considered to have failed and is handled according
// to its restartPolicy. The name for an init container or normal container must be
// unique among all containers.
// Init containers may not have Lifecycle actions, Readiness probes, Liveness probes, or Startup probes.
// The resourceRequirements of an init container are taken into account during scheduling
// by finding the highest request/limit for each resource type, and then using the max of
// of that value or the sum of the normal containers. Limits are applied to init containers
// in a similar fashion.
// Init containers cannot currently be added or removed.
// Cannot be updated.
// More info: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
// +patchMergeKey=name
// +patchStrategy=merge
InitContainers []Container `json:"initContainers,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,20,rep,name=initContainers"`
// List of containers belonging to the pod.
// Containers cannot currently be added or removed.
// There must be at least one container in a Pod.
// Cannot be updated.
// +patchMergeKey=name
// +patchStrategy=merge
Containers []Container `json:"containers" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,2,rep,name=containers"`
// ServiceAccountName is the name of the ServiceAccount to use to run this pod.
// More info: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
// +optional
ServiceAccountName string `json:"serviceAccountName,omitempty" protobuf:"bytes,8,opt,name=serviceAccountName"`
// NodeName is a request to schedule this pod onto a specific node. If it is non-empty,
// the scheduler simply schedules this pod onto that node, assuming that it fits resource
// requirements.
// +optional
NodeName string `json:"nodeName,omitempty" protobuf:"bytes,10,opt,name=nodeName"`
// Host networking requested for this pod. Use the host's network namespace.
// If this option is set, the ports that will be used must be specified.
// Default to false.
// +k8s:conversion-gen=false
// +optional
HostNetwork bool `json:"hostNetwork,omitempty" protobuf:"varint,11,opt,name=hostNetwork"`
}
// IP address information for entries in the (plural) PodIPs field.
// Each entry includes:
// IP: An IP address allocated to the pod. Routable at least within the cluster.
type PodIP struct {
// ip is an IP address (IPv4 or IPv6) assigned to the pod
IP string `json:"ip,omitempty" protobuf:"bytes,1,opt,name=ip"`
}
// PodStatus represents information about the status of a pod. Status may trail the actual
// state of a system, especially if the node that hosts the pod cannot contact the control
// plane.
type PodStatus struct {
// The phase of a Pod is a simple, high-level summary of where the Pod is in its lifecycle.
// The conditions array, the reason and message fields, and the individual container status
// arrays contain more detail about the pod's status.
// There are five possible phase values:
//
// Pending: The pod has been accepted by the Kubernetes system, but one or more of the
// container images has not been created. This includes time before being scheduled as
// well as time spent downloading images over the network, which could take a while.
// Running: The pod has been bound to a node, and all of the containers have been created.
// At least one container is still running, or is in the process of starting or restarting.
// Succeeded: All containers in the pod have terminated in success, and will not be restarted.
// Failed: All containers in the pod have terminated, and at least one container has
// terminated in failure. The container either exited with non-zero status or was terminated
// by the system.
// Unknown: 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.
//
// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-phase
// +optional
Phase PodPhase `json:"phase,omitempty" protobuf:"bytes,1,opt,name=phase,casttype=PodPhase"`
// Current service state of pod.
// More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#pod-conditions
// +optional
// +patchMergeKey=type
// +patchStrategy=merge
Conditions []PodCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,2,rep,name=conditions"`
// IP address of the host to which the pod is assigned. Empty if not yet scheduled.
// +optional
HostIP string `json:"hostIP,omitempty" protobuf:"bytes,5,opt,name=hostIP"`
// IP address allocated to the pod. Routable at least within the cluster.
// Empty if not yet allocated.
// +optional
PodIP string `json:"podIP,omitempty" protobuf:"bytes,6,opt,name=podIP"`
// podIPs holds the IP addresses allocated to the pod. If this field is specified, the 0th entry must
// match the podIP field. Pods may be allocated at most 1 value for each of IPv4 and IPv6. This list
// is empty if no IPs have been allocated yet.
// +optional
// +patchStrategy=merge
// +patchMergeKey=ip
PodIPs []PodIP `json:"podIPs,omitempty" protobuf:"bytes,12,rep,name=podIPs" patchStrategy:"merge" patchMergeKey:"ip"`
// 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.
// +optional
StartTime *slim_metav1.Time `json:"startTime,omitempty" protobuf:"bytes,7,opt,name=startTime"`
}
// +genclient
// +genclient:method=UpdateEphemeralContainers,verb=update,subresource=ephemeralcontainers
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// 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 {
slim_metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
// +optional
slim_metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Specification of the desired behavior of the pod.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Spec PodSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
// Most recently observed status of the pod.
// This data may not be up to date.
// Populated by the system.
// Read-only.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Status PodStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// PodList is a list of Pods.
type PodList struct {
slim_metav1.TypeMeta `json:",inline"`
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
slim_metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// List of pods.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md
Items []Pod `json:"items" protobuf:"bytes,2,rep,name=items"`
}
// Session Affinity Type string
// +enum
type ServiceAffinity string
const (
// ServiceAffinityClientIP is the Client IP based.
ServiceAffinityClientIP ServiceAffinity = "ClientIP"
// ServiceAffinityNone - no session affinity.
ServiceAffinityNone ServiceAffinity = "None"
)
const DefaultClientIPServiceAffinitySeconds int32 = 10800
// SessionAffinityConfig represents the configurations of session affinity.
type SessionAffinityConfig struct {
// clientIP contains the configurations of Client IP based session affinity.
// +optional
ClientIP *ClientIPConfig `json:"clientIP,omitempty" protobuf:"bytes,1,opt,name=clientIP"`
}
// ClientIPConfig represents the configurations of Client IP based session affinity.
type ClientIPConfig struct {
// timeoutSeconds specifies the seconds of ClientIP type session sticky time.
// The value must be >0 && <=86400(for 1 day) if ServiceAffinity == "ClientIP".
// Default value is 10800(for 3 hours).
// +optional
TimeoutSeconds *int32 `json:"timeoutSeconds,omitempty" protobuf:"varint,1,opt,name=timeoutSeconds"`
}
// Service Type string describes ingress methods for a service
// +enum
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"
// ServiceTypeExternalName means a service consists of only a reference to
// an external name that kubedns or equivalent will return as a CNAME
// record, with no exposing or proxying of any pods involved.
ServiceTypeExternalName ServiceType = "ExternalName"
)
// Service External Traffic Policy Type string
// +enum
type ServiceExternalTrafficPolicyType string
const (
// ServiceExternalTrafficPolicyTypeLocal specifies node-local endpoints behavior.
ServiceExternalTrafficPolicyTypeLocal ServiceExternalTrafficPolicyType = "Local"
// ServiceExternalTrafficPolicyTypeCluster specifies node-global (legacy) behavior.
ServiceExternalTrafficPolicyTypeCluster ServiceExternalTrafficPolicyType = "Cluster"
)
// ServiceStatus represents the current status of a service.
type ServiceStatus struct {
// LoadBalancer contains the current status of the load-balancer,
// if one is present.
// +optional
LoadBalancer LoadBalancerStatus `json:"loadBalancer,omitempty" protobuf:"bytes,1,opt,name=loadBalancer"`
}
// 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.
// +optional
Ingress []LoadBalancerIngress `json:"ingress,omitempty" protobuf:"bytes,1,rep,name=ingress"`
}
// 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)
// +optional
IP string `json:"ip,omitempty" protobuf:"bytes,1,opt,name=ip"`
// Hostname is set for load-balancer ingress points that are DNS based
// (typically AWS load-balancers)
// +optional
Hostname string `json:"hostname,omitempty" protobuf:"bytes,2,opt,name=hostname"`
// Ports is a list of records of service ports
// If used, every port defined in the service should have an entry in it
// +listType=atomic
// +optional
Ports []PortStatus `json:"ports,omitempty" protobuf:"bytes,4,rep,name=ports"`
}
// IPFamily represents the IP Family (IPv4 or IPv6). This type is used
// to express the family of an IP expressed by a type (e.g. service.spec.ipFamilies).
// +enum
type IPFamily string
const (
// IPv4Protocol indicates that this IP is IPv4 protocol
IPv4Protocol IPFamily = "IPv4"
// IPv6Protocol indicates that this IP is IPv6 protocol
IPv6Protocol IPFamily = "IPv6"
)
// 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: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
// +patchMergeKey=port
// +patchStrategy=merge
// +listType=map
// +listMapKey=port
// +listMapKey=protocol
Ports []ServicePort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"port" protobuf:"bytes,1,rep,name=ports"`
// Route service traffic to pods with label keys and values matching this
// selector. If empty or not present, the service is assumed to have an
// external process managing its endpoints, which Kubernetes will not
// modify. Only applies to types ClusterIP, NodePort, and LoadBalancer.
// Ignored if type is ExternalName.
// More info: https://kubernetes.io/docs/concepts/services-networking/service/
// +optional
// +mapType=atomic
Selector map[string]string `json:"selector,omitempty" protobuf:"bytes,2,rep,name=selector"`
// clusterIP is the IP address of the service and is usually assigned
// randomly. If an address is specified manually, is in-range (as per
// system configuration), and is not in use, it will be allocated to the
// service; otherwise creation of the service will fail. This field may not
// be changed through updates unless the type field is also being changed
// to ExternalName (which requires this field to be blank) or the type
// field is being changed from ExternalName (in which case this field may
// optionally be specified, as describe above). Valid values are "None",
// empty string (""), or a valid IP address. Setting this to "None" makes a
// "headless service" (no virtual IP), which is useful when direct endpoint
// connections are preferred and proxying is not required. Only applies to
// types ClusterIP, NodePort, and LoadBalancer. If this field is specified
// when creating a Service of type ExternalName, creation will fail. This
// field will be wiped when updating a Service to type ExternalName.
// More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
// +optional
ClusterIP string `json:"clusterIP,omitempty" protobuf:"bytes,3,opt,name=clusterIP"`
// ClusterIPs is a list of IP addresses assigned to this service, and are
// usually assigned randomly. If an address is specified manually, is
// in-range (as per system configuration), and is not in use, it will be
// allocated to the service; otherwise creation of the service will fail.
// This field may not be changed through updates unless the type field is
// also being changed to ExternalName (which requires this field to be
// empty) or the type field is being changed from ExternalName (in which
// case this field may optionally be specified, as describe above). Valid
// values are "None", empty string (""), or a valid IP address. Setting
// this to "None" makes a "headless service" (no virtual IP), which is
// useful when direct endpoint connections are preferred and proxying is
// not required. Only applies to types ClusterIP, NodePort, and
// LoadBalancer. If this field is specified when creating a Service of type
// ExternalName, creation will fail. This field will be wiped when updating
// a Service to type ExternalName. If this field is not specified, it will
// be initialized from the clusterIP field. If this field is specified,
// clients must ensure that clusterIPs[0] and clusterIP have the same
// value.
//
// This field may hold a maximum of two entries (dual-stack IPs, in either order).
// These IPs must correspond to the values of the ipFamilies field. Both
// clusterIPs and ipFamilies are governed by the ipFamilyPolicy field.
// More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
// +listType=atomic
// +optional
ClusterIPs []string `json:"clusterIPs,omitempty" protobuf:"bytes,18,opt,name=clusterIPs"`
// type determines how the Service is exposed. Defaults to ClusterIP. Valid
// options are ExternalName, ClusterIP, NodePort, and LoadBalancer.
// "ClusterIP" allocates a cluster-internal IP address for load-balancing
// to endpoints. Endpoints are determined by the selector or if that is not
// specified, by manual construction of an Endpoints object or
// EndpointSlice objects. If clusterIP is "None", no virtual IP is
// allocated and the endpoints are published as a set of endpoints rather
// than a virtual IP.
// "NodePort" builds on ClusterIP and allocates a port on every node which
// routes to the same endpoints as the clusterIP.
// "LoadBalancer" builds on NodePort and creates an external load-balancer
// (if supported in the current cloud) which routes to the same endpoints
// as the clusterIP.
// "ExternalName" aliases this service to the specified externalName.
// Several other fields do not apply to ExternalName services.
// More info: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
// +optional
Type ServiceType `json:"type,omitempty" protobuf:"bytes,4,opt,name=type,casttype=ServiceType"`
// 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.
// +optional
ExternalIPs []string `json:"externalIPs,omitempty" protobuf:"bytes,5,rep,name=externalIPs"`
// 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: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
// +optional
SessionAffinity ServiceAffinity `json:"sessionAffinity,omitempty" protobuf:"bytes,7,opt,name=sessionAffinity,casttype=ServiceAffinity"`
// Only applies to Service Type: LoadBalancer.
// 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.
// Deprecated: This field was under-specified and its meaning varies across implementations,
// and it cannot support dual-stack.
// As of Kubernetes v1.24, users are encouraged to use implementation-specific annotations when available.
// This field may be removed in a future API version.
// +optional
LoadBalancerIP string `json:"loadBalancerIP,omitempty" protobuf:"bytes,8,opt,name=loadBalancerIP"`
// If specified and supported by the platform, this will restrict traffic through the cloud-provider
// load-balancer will be restricted to the specified client IPs. This field will be ignored if the
// cloud-provider does not support the feature."
// More info: https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/
// +optional
LoadBalancerSourceRanges []string `json:"loadBalancerSourceRanges,omitempty" protobuf:"bytes,9,opt,name=loadBalancerSourceRanges"`
// externalTrafficPolicy denotes if this Service desires to route external
// traffic to node-local or cluster-wide endpoints. "Local" preserves the
// client source IP and avoids a second hop for LoadBalancer and Nodeport
// type services, but risks potentially imbalanced traffic spreading.
// "Cluster" obscures the client source IP and may cause a second hop to
// another node, but should have good overall load-spreading.
// +optional
ExternalTrafficPolicy ServiceExternalTrafficPolicyType `json:"externalTrafficPolicy,omitempty" protobuf:"bytes,11,opt,name=externalTrafficPolicy"`
// healthCheckNodePort specifies the healthcheck nodePort for the service.
// This only applies when type is set to LoadBalancer and
// externalTrafficPolicy is set to Local. If a value is specified, is
// in-range, and is not in use, it will be used. If not specified, a value
// will be automatically allocated. External systems (e.g. load-balancers)
// can use this port to determine if a given node holds endpoints for this
// service or not. If this field is specified when creating a Service
// which does not need it, creation will fail. This field will be wiped
// when updating a Service to no longer need it (e.g. changing type).
// +optional
HealthCheckNodePort int32 `json:"healthCheckNodePort,omitempty" protobuf:"bytes,12,opt,name=healthCheckNodePort"`
// sessionAffinityConfig contains the configurations of session affinity.
// +optional
SessionAffinityConfig *SessionAffinityConfig `json:"sessionAffinityConfig,omitempty" protobuf:"bytes,14,opt,name=sessionAffinityConfig"`
// IPFamilies is a list of IP families (e.g. IPv4, IPv6) assigned to this
// service. This field is usually assigned automatically based on cluster
// configuration and the ipFamilyPolicy field. If this field is specified
// manually, the requested family is available in the cluster,
// and ipFamilyPolicy allows it, it will be used; otherwise creation of
// the service will fail. This field is conditionally mutable: it allows
// for adding or removing a secondary IP family, but it does not allow
// changing the primary IP family of the Service. Valid values are "IPv4"
// and "IPv6". This field only applies to Services of types ClusterIP,
// NodePort, and LoadBalancer, and does apply to "headless" services.
// This field will be wiped when updating a Service to type ExternalName.
//
// This field may hold a maximum of two entries (dual-stack families, in
// either order). These families must correspond to the values of the
// clusterIPs field, if specified. Both clusterIPs and ipFamilies are
// governed by the ipFamilyPolicy field.
// +listType=atomic
// +optional
IPFamilies []IPFamily `json:"ipFamilies,omitempty" protobuf:"bytes,19,opt,name=ipFamilies,casttype=IPFamily"`
}
// ServicePort contains 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. When considering
// the endpoints for a Service, this must match the 'name' field in the
// EndpointPort.
// Optional if only one ServicePort is defined on this service.
// +optional
Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
// The IP protocol for this port. Supports "TCP", "UDP", and "SCTP".
// Default is TCP.
// +default="TCP"
// +optional
Protocol Protocol `json:"protocol,omitempty" protobuf:"bytes,2,opt,name=protocol,casttype=Protocol"`
// The port that will be exposed by this service.
Port int32 `json:"port" protobuf:"varint,3,opt,name=port"`
// The port on each node on which this service is exposed when type is
// NodePort or LoadBalancer. Usually assigned by the system. If a value is
// specified, in-range, and not in use it will be used, otherwise the
// operation will fail. If not specified, a port will be allocated if this
// Service requires one. If this field is specified when creating a
// Service which does not need it, creation will fail. This field will be
// wiped when updating a Service to no longer need it (e.g. changing type
// from NodePort to ClusterIP).
// More info: https://kubernetes.io/docs/concepts/services-networking/service/#type-nodeport
// +optional
NodePort int32 `json:"nodePort,omitempty" protobuf:"varint,5,opt,name=nodePort"`
}
// +genclient
// +genclient:skipVerbs=deleteCollection
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// 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 {
slim_metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
// +optional
slim_metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Spec defines the behavior of a service.
// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Spec ServiceSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
// Most recently observed status of the service.
// Populated by the system.
// Read-only.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Status ServiceStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// ServiceList holds a list of services.
type ServiceList struct {
slim_metav1.TypeMeta `json:",inline"`
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
slim_metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// List of services
Items []Service `json:"items" protobuf:"bytes,2,rep,name=items"`
}
// +genclient
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// 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 {
slim_metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
// +optional
slim_metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// 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.
// +optional
Subsets []EndpointSubset `json:"subsets,omitempty" protobuf:"bytes,2,rep,name=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.
// +optional
Addresses []EndpointAddress `json:"addresses,omitempty" protobuf:"bytes,1,rep,name=addresses"`
// Port numbers available on the related IP addresses.
// +optional
Ports []EndpointPort `json:"ports,omitempty" protobuf:"bytes,3,rep,name=ports"`
}
// EndpointAddress is a tuple that describes single IP address.
// +structType=atomic
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).
// IPv6 is also accepted but not fully supported on all platforms. Also, certain
// kubernetes components, like kube-proxy, are not IPv6 ready.
// TODO: This should allow hostname or IP, See #4447.
IP string `json:"ip" protobuf:"bytes,1,opt,name=ip"`
// Optional: Node hosting this endpoint. This can be used to determine endpoints local to a node.
// +optional
NodeName *string `json:"nodeName,omitempty" protobuf:"bytes,4,opt,name=nodeName"`
}
// EndpointPort is a tuple that describes a single port.
// +structType=atomic
type EndpointPort struct {
// The name of this port. This must match the 'name' field in the
// corresponding ServicePort.
// Must be a DNS_LABEL.
// Optional only if one port is defined.
// +optional
Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`
// The port number of the endpoint.
Port int32 `json:"port" protobuf:"varint,2,opt,name=port"`
// The IP protocol for this port.
// Must be UDP, TCP, or SCTP.
// Default is TCP.
// +optional
Protocol Protocol `json:"protocol,omitempty" protobuf:"bytes,3,opt,name=protocol,casttype=Protocol"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// EndpointsList is a list of endpoints.
type EndpointsList struct {
slim_metav1.TypeMeta `json:",inline"`
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
slim_metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// List of endpoints.
Items []Endpoints `json:"items" protobuf:"bytes,2,rep,name=items"`
}
// NodeSpec describes the attributes that a node is created with.
type NodeSpec struct {
// PodCIDR represents the pod IP range assigned to the node.
// +optional
PodCIDR string `json:"podCIDR,omitempty" protobuf:"bytes,1,opt,name=podCIDR"`
// podCIDRs represents the IP ranges assigned to the node for usage by Pods on that node. If this
// field is specified, the 0th entry must match the podCIDR field. It may contain at most 1 value for
// each of IPv4 and IPv6.
// +optional
// +patchStrategy=merge
PodCIDRs []string `json:"podCIDRs,omitempty" protobuf:"bytes,7,opt,name=podCIDRs" patchStrategy:"merge"`
// If specified, the node's taints.
// +optional
Taints []Taint `json:"taints,omitempty" protobuf:"bytes,5,opt,name=taints"`
}
// NodeStatus is information about the current status of a node.
type NodeStatus struct {
// Conditions is an array of current observed node conditions.
// More info: https://kubernetes.io/docs/concepts/nodes/node/#condition
// +optional
// +patchMergeKey=type
// +patchStrategy=merge
Conditions []NodeCondition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,4,rep,name=conditions"`
// List of addresses reachable to the node.
// Queried from cloud provider, if available.
// More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses
// Note: This field is declared as mergeable, but the merge key is not sufficiently
// unique, which can cause data corruption when it is merged. Callers should instead
// use a full-replacement patch. See http://pr.k8s.io/79391 for an example.
// +optional
// +patchMergeKey=type
// +patchStrategy=merge
Addresses []NodeAddress `json:"addresses,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,5,rep,name=addresses"`
}
// +enum
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"
)
// +enum
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"
// NodeMemoryPressure means the kubelet is under pressure due to insufficient available memory.
NodeMemoryPressure NodeConditionType = "MemoryPressure"
// NodeDiskPressure means the kubelet is under pressure due to insufficient available disk.
NodeDiskPressure NodeConditionType = "DiskPressure"
// NodePIDPressure means the kubelet is under pressure due to insufficient available PID.
NodePIDPressure NodeConditionType = "PIDPressure"
// NodeNetworkUnavailable means that network for the node is not correctly configured.
NodeNetworkUnavailable NodeConditionType = "NetworkUnavailable"
)
// NodeCondition contains condition information for a node.
type NodeCondition struct {
// Type of node condition.
Type NodeConditionType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=NodeConditionType"`
// Status of the condition, one of True, False, Unknown.
Status ConditionStatus `json:"status" protobuf:"bytes,2,opt,name=status,casttype=ConditionStatus"`
// (brief) reason for the condition's last transition.
// +optional
Reason string `json:"reason,omitempty" protobuf:"bytes,5,opt,name=reason"`
}
// +enum
type NodeAddressType string
// These are built-in addresses type of node. A cloud provider may set a type not listed here.
const (
// NodeHostName identifies a name of the node. Although every node can be assumed
// to have a NodeAddress of this type, its exact syntax and semantics are not
// defined, and are not consistent between different clusters.
NodeHostName NodeAddressType = "Hostname"
// NodeInternalIP identifies an IP address which is assigned to one of the node's
// network interfaces. Every node should have at least one address of this type.
//
// An internal IP is normally expected to be reachable from every other node, but
// may not be visible to hosts outside the cluster. By default it is assumed that
// kube-apiserver can reach node internal IPs, though it is possible to configure
// clusters where this is not the case.
//
// NodeInternalIP is the default type of node IP, and does not necessarily imply
// that the IP is ONLY reachable internally. If a node has multiple internal IPs,
// no specific semantics are assigned to the additional IPs.
NodeInternalIP NodeAddressType = "InternalIP"
// NodeExternalIP identifies an IP address which is, in some way, intended to be
// more usable from outside the cluster then an internal IP, though no specific
// semantics are defined. It may be a globally routable IP, though it is not
// required to be.
//
// External IPs may be assigned directly to an interface on the node, like a
// NodeInternalIP, or alternatively, packets sent to the external IP may be NAT'ed
// to an internal node IP rather than being delivered directly (making the IP less
// efficient for node-to-node traffic than a NodeInternalIP).
NodeExternalIP NodeAddressType = "ExternalIP"
// NodeInternalDNS identifies a DNS name which resolves to an IP address which has
// the characteristics of a NodeInternalIP. The IP it resolves to may or may not
// be a listed NodeInternalIP address.
NodeInternalDNS NodeAddressType = "InternalDNS"
// NodeExternalDNS identifies a DNS name which resolves to an IP address which has
// the characteristics of a NodeExternalIP. The IP it resolves to may or may not
// be a listed NodeExternalIP address.
NodeExternalDNS NodeAddressType = "ExternalDNS"
)
// NodeAddress contains information for the node's address.
type NodeAddress struct {
// Node address type, one of Hostname, ExternalIP or InternalIP.
Type NodeAddressType `json:"type" protobuf:"bytes,1,opt,name=type,casttype=NodeAddressType"`
// The node address.
Address string `json:"address" protobuf:"bytes,2,opt,name=address"`
}
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Node is a worker node in Kubernetes.
// Each node will have a unique identifier in the cache (i.e. in etcd).
type Node struct {
slim_metav1.TypeMeta `json:",inline"`
// Standard object's metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
// +optional
slim_metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Spec defines the behavior of a node.
// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Spec NodeSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
// Most recently observed status of the node.
// Populated by the system.
// Read-only.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
// +optional
Status NodeStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// NodeList is the whole list of all Nodes which have been registered with master.
type NodeList struct {
slim_metav1.TypeMeta `json:",inline"`
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
slim_metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// List of nodes
Items []Node `json:"items" protobuf:"bytes,2,rep,name=items"`
}
// +genclient
// +genclient:nonNamespaced
// +genclient:skipVerbs=deleteCollection
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object