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types.go
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package api
import (
kapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/util/intstr"
)
// These constants represent defaults used in the deployment process.
const (
// DefaultRollingTimeoutSeconds is the default TimeoutSeconds for RollingDeploymentStrategyParams.
DefaultRollingTimeoutSeconds int64 = 10 * 60
// DefaultRecreateTimeoutSeconds is the default TimeoutSeconds for RecreateDeploymentStrategyParams.
DefaultRecreateTimeoutSeconds int64 = 10 * 60
// DefaultRollingIntervalSeconds is the default IntervalSeconds for RollingDeploymentStrategyParams.
DefaultRollingIntervalSeconds int64 = 1
// DefaultRollingUpdatePeriodSeconds is the default PeriodSeconds for RollingDeploymentStrategyParams.
DefaultRollingUpdatePeriodSeconds int64 = 1
// MaxDeploymentDurationSeconds represents the maximum duration that a deployment is allowed to run.
// This is set as the default value for ActiveDeadlineSeconds for the deployer pod.
// Currently set to 6 hours.
MaxDeploymentDurationSeconds int64 = 21600
)
// These constants represent keys used for correlating objects related to deployments.
const (
// DeploymentConfigAnnotation is an annotation name used to correlate a deployment with the
// DeploymentConfig on which the deployment is based.
DeploymentConfigAnnotation = "openshift.io/deployment-config.name"
// DeploymentAnnotation is an annotation on a deployer Pod. The annotation value is the name
// of the deployment (a ReplicationController) on which the deployer Pod acts.
DeploymentAnnotation = "openshift.io/deployment.name"
// DeploymentPodAnnotation is an annotation on a deployment (a ReplicationController). The
// annotation value is the name of the deployer Pod which will act upon the ReplicationController
// to implement the deployment behavior.
DeploymentPodAnnotation = "openshift.io/deployer-pod.name"
// DeploymentIgnorePodAnnotation is an annotation on a deployment config that will bypass creating
// a deployment pod with the deployment. The caller is responsible for setting the deployment
// status and running the deployment process.
DeploymentIgnorePodAnnotation = "deploy.openshift.io/deployer-pod.ignore"
// DeploymentPodTypeLabel is a label with which contains a type of deployment pod.
DeploymentPodTypeLabel = "openshift.io/deployer-pod.type"
// DeployerPodForDeploymentLabel is a label which groups pods related to a
// deployment. The value is a deployment name. The deployer pod and hook pods
// created by the internal strategies will have this label. Custom
// strategies can apply this label to any pods they create, enabling
// platform-provided cancellation and garbage collection support.
DeployerPodForDeploymentLabel = "openshift.io/deployer-pod-for.name"
// DeploymentStatusAnnotation is an annotation name used to retrieve the DeploymentPhase of
// a deployment.
DeploymentStatusAnnotation = "openshift.io/deployment.phase"
// DeploymentEncodedConfigAnnotation is an annotation name used to retrieve specific encoded
// DeploymentConfig on which a given deployment is based.
DeploymentEncodedConfigAnnotation = "openshift.io/encoded-deployment-config"
// DeploymentVersionAnnotation is an annotation on a deployment (a ReplicationController). The
// annotation value is the LatestVersion value of the DeploymentConfig which was the basis for
// the deployment.
DeploymentVersionAnnotation = "openshift.io/deployment-config.latest-version"
// DeploymentLabel is the name of a label used to correlate a deployment with the Pod created
// to execute the deployment logic.
// TODO: This is a workaround for upstream's lack of annotation support on PodTemplate. Once
// annotations are available on PodTemplate, audit this constant with the goal of removing it.
DeploymentLabel = "deployment"
// DeploymentConfigLabel is the name of a label used to correlate a deployment with the
// DeploymentConfigs on which the deployment is based.
DeploymentConfigLabel = "deploymentconfig"
// DesiredReplicasAnnotation represents the desired number of replicas for a
// new deployment.
// TODO: This should be made public upstream.
DesiredReplicasAnnotation = "kubectl.kubernetes.io/desired-replicas"
// DeploymentStatusReasonAnnotation represents the reason for deployment being in a given state
// Used for specifying the reason for cancellation or failure of a deployment
DeploymentStatusReasonAnnotation = "openshift.io/deployment.status-reason"
// DeploymentCancelledAnnotation indicates that the deployment has been cancelled
// The annotation value does not matter and its mere presence indicates cancellation
DeploymentCancelledAnnotation = "openshift.io/deployment.cancelled"
// DeploymentReplicasAnnotation is for internal use only and is for
// detecting external modifications to deployment replica counts.
DeploymentReplicasAnnotation = "openshift.io/deployment.replicas"
// PostHookPodSuffix is the suffix added to all pre hook pods
PreHookPodSuffix = "hook-pre"
// PostHookPodSuffix is the suffix added to all mid hook pods
MidHookPodSuffix = "hook-mid"
// PostHookPodSuffix is the suffix added to all post hook pods
PostHookPodSuffix = "hook-post"
)
// These constants represent values used in deployment annotations.
const (
// DeploymentCancelledAnnotationValue represents the value for the DeploymentCancelledAnnotation
// annotation that signifies that the deployment should be cancelled
DeploymentCancelledAnnotationValue = "true"
)
// These constants represent the various reasons for cancelling a deployment
// or for a deployment being placed in a failed state
const (
DeploymentCancelledByUser = "cancelled by the user"
DeploymentCancelledNewerDeploymentExists = "newer deployment was found running"
DeploymentFailedUnrelatedDeploymentExists = "unrelated pod with the same name as this deployment is already running"
DeploymentFailedDeployerPodNoLongerExists = "deployer pod no longer exists"
)
// DeploymentStatus describes the possible states a deployment can be in.
type DeploymentStatus string
const (
// DeploymentStatusNew means the deployment has been accepted but not yet acted upon.
DeploymentStatusNew DeploymentStatus = "New"
// DeploymentStatusPending means the deployment been handed over to a deployment strategy,
// but the strategy has not yet declared the deployment to be running.
DeploymentStatusPending DeploymentStatus = "Pending"
// DeploymentStatusRunning means the deployment strategy has reported the deployment as
// being in-progress.
DeploymentStatusRunning DeploymentStatus = "Running"
// DeploymentStatusComplete means the deployment finished without an error.
DeploymentStatusComplete DeploymentStatus = "Complete"
// DeploymentStatusFailed means the deployment finished with an error.
DeploymentStatusFailed DeploymentStatus = "Failed"
)
// +genclient=true
// DeploymentConfig represents a configuration for a single deployment (represented as a
// ReplicationController). It also contains details about changes which resulted in the current
// state of the DeploymentConfig. Each change to the DeploymentConfig which should result in
// a new deployment results in an increment of LatestVersion.
type DeploymentConfig struct {
unversioned.TypeMeta
kapi.ObjectMeta
// Spec represents a desired deployment state and how to deploy to it.
Spec DeploymentConfigSpec
// Status represents the current deployment state.
Status DeploymentConfigStatus
}
// DeploymentConfigSpec represents the desired state of the deployment.
type DeploymentConfigSpec struct {
// Strategy describes how a deployment is executed.
Strategy DeploymentStrategy
// MinReadySeconds is the minimum number of seconds for which a newly created pod should
// be ready without any of its container crashing, for it to be considered available.
// Defaults to 0 (pod will be considered available as soon as it is ready)
MinReadySeconds int32
// Triggers determine how updates to a DeploymentConfig result in new deployments. If no triggers
// are defined, a new deployment can only occur as a result of an explicit client update to the
// DeploymentConfig with a new LatestVersion.
Triggers []DeploymentTriggerPolicy
// Replicas is the number of desired replicas.
Replicas int32
// RevisionHistoryLimit is the number of old ReplicationControllers to retain to allow for rollbacks.
// This field is a pointer to allow for differentiation between an explicit zero and not specified.
RevisionHistoryLimit *int32
// Test ensures that this deployment config will have zero replicas except while a deployment is running. This allows the
// deployment config to be used as a continuous deployment test - triggering on images, running the deployment, and then succeeding
// or failing. Post strategy hooks and After actions can be used to integrate successful deployment with an action.
Test bool
// Paused indicates that the deployment config is paused resulting in no new deployments on template
// changes or changes in the template caused by other triggers.
Paused bool
// Selector is a label query over pods that should match the Replicas count.
Selector map[string]string
// Template is the object that describes the pod that will be created if
// insufficient replicas are detected.
Template *kapi.PodTemplateSpec
}
// DeploymentStrategy describes how to perform a deployment.
type DeploymentStrategy struct {
// Type is the name of a deployment strategy.
Type DeploymentStrategyType
// CustomParams are the input to the Custom deployment strategy, and may also
// be specified for the Recreate and Rolling strategies to customize the execution
// process that runs the deployment.
CustomParams *CustomDeploymentStrategyParams
// RecreateParams are the input to the Recreate deployment strategy.
RecreateParams *RecreateDeploymentStrategyParams
// RollingParams are the input to the Rolling deployment strategy.
RollingParams *RollingDeploymentStrategyParams
// Resources contains resource requirements to execute the deployment and any hooks.
Resources kapi.ResourceRequirements
// Labels is a set of key, value pairs added to custom deployer and lifecycle pre/post hook pods.
Labels map[string]string
// Annotations is a set of key, value pairs added to custom deployer and lifecycle pre/post hook pods.
Annotations map[string]string
// ActiveDeadlineSeconds is the duration in seconds that the deployer pods for this deployment
// config may be active on a node before the system actively tries to terminate them.
ActiveDeadlineSeconds *int64
}
// DeploymentStrategyType refers to a specific DeploymentStrategy implementation.
type DeploymentStrategyType string
const (
// DeploymentStrategyTypeRecreate is a simple strategy suitable as a default.
DeploymentStrategyTypeRecreate DeploymentStrategyType = "Recreate"
// DeploymentStrategyTypeCustom is a user defined strategy.
DeploymentStrategyTypeCustom DeploymentStrategyType = "Custom"
// DeploymentStrategyTypeRolling uses the Kubernetes RollingUpdater.
DeploymentStrategyTypeRolling DeploymentStrategyType = "Rolling"
)
// CustomDeploymentStrategyParams are the input to the Custom deployment strategy.
type CustomDeploymentStrategyParams struct {
// Image specifies a Docker image which can carry out a deployment.
Image string
// Environment holds the environment which will be given to the container for Image.
Environment []kapi.EnvVar
// Command is optional and overrides CMD in the container Image.
Command []string
}
// RecreateDeploymentStrategyParams are the input to the Recreate deployment
// strategy.
type RecreateDeploymentStrategyParams struct {
// TimeoutSeconds is the time to wait for updates before giving up. If the
// value is nil, a default will be used.
TimeoutSeconds *int64
// Pre is a lifecycle hook which is executed before the strategy manipulates
// the deployment. All LifecycleHookFailurePolicy values are supported.
Pre *LifecycleHook
// Mid is a lifecycle hook which is executed while the deployment is scaled down to zero before the first new
// pod is created. All LifecycleHookFailurePolicy values are supported.
Mid *LifecycleHook
// Post is a lifecycle hook which is executed after the strategy has
// finished all deployment logic. All LifecycleHookFailurePolicy values are supported.
Post *LifecycleHook
}
// RollingDeploymentStrategyParams are the input to the Rolling deployment
// strategy.
type RollingDeploymentStrategyParams struct {
// UpdatePeriodSeconds is the time to wait between individual pod updates.
// If the value is nil, a default will be used.
UpdatePeriodSeconds *int64
// IntervalSeconds is the time to wait between polling deployment status
// after update. If the value is nil, a default will be used.
IntervalSeconds *int64
// TimeoutSeconds is the time to wait for updates before giving up. If the
// value is nil, a default will be used.
TimeoutSeconds *int64
// MaxUnavailable is the maximum number of pods that can be unavailable
// during the update. Value can be an absolute number (ex: 5) or a
// percentage of total pods at the start of update (ex: 10%). Absolute
// number is calculated from percentage by rounding down.
//
// This cannot be 0 if MaxSurge is 0. By default, 25% is used.
//
// Example: when this is set to 30%, the old RC can be scaled down by 30%
// immediately when the rolling update starts. Once new pods are ready, old
// RC can be scaled down further, followed by scaling up the new RC,
// ensuring that at least 70% of original number of pods are available at
// all times during the update.
MaxUnavailable intstr.IntOrString
// MaxSurge is the maximum number of pods that can be scheduled above the
// original number of pods. Value can be an absolute number (ex: 5) or a
// percentage of total pods at the start of the update (ex: 10%). Absolute
// number is calculated from percentage by rounding up.
//
// This cannot be 0 if MaxUnavailable is 0. By default, 25% is used.
//
// Example: when this is set to 30%, the new RC can be scaled up by 30%
// immediately when the rolling update starts. Once old pods have been
// killed, new RC can be scaled up further, ensuring that total number of
// pods running at any time during the update is atmost 130% of original
// pods.
MaxSurge intstr.IntOrString
// Pre is a lifecycle hook which is executed before the deployment process
// begins. All LifecycleHookFailurePolicy values are supported.
Pre *LifecycleHook
// Post is a lifecycle hook which is executed after the strategy has
// finished all deployment logic. All LifecycleHookFailurePolicy values
// are supported.
Post *LifecycleHook
}
// LifecycleHook defines a specific deployment lifecycle action. Only one type of action may be specified at any time.
type LifecycleHook struct {
// FailurePolicy specifies what action to take if the hook fails.
FailurePolicy LifecycleHookFailurePolicy
// ExecNewPod specifies the options for a lifecycle hook backed by a pod.
ExecNewPod *ExecNewPodHook
// TagImages instructs the deployer to tag the current image referenced under a container onto an image stream tag.
TagImages []TagImageHook
}
// LifecycleHookFailurePolicy describes possibles actions to take if a hook fails.
type LifecycleHookFailurePolicy string
const (
// LifecycleHookFailurePolicyRetry means retry the hook until it succeeds.
LifecycleHookFailurePolicyRetry LifecycleHookFailurePolicy = "Retry"
// LifecycleHookFailurePolicyAbort means abort the deployment.
LifecycleHookFailurePolicyAbort LifecycleHookFailurePolicy = "Abort"
// LifecycleHookFailurePolicyIgnore means ignore failure and continue the deployment.
LifecycleHookFailurePolicyIgnore LifecycleHookFailurePolicy = "Ignore"
)
// ExecNewPodHook is a hook implementation which runs a command in a new pod
// based on the specified container which is assumed to be part of the
// deployment template.
type ExecNewPodHook struct {
// Command is the action command and its arguments.
Command []string
// Env is a set of environment variables to supply to the hook pod's container.
Env []kapi.EnvVar
// ContainerName is the name of a container in the deployment pod template
// whose Docker image will be used for the hook pod's container.
ContainerName string
// Volumes is a list of named volumes from the pod template which should be
// copied to the hook pod. Volumes names not found in pod spec are ignored.
// An empty list means no volumes will be copied.
Volumes []string
}
// TagImageHook is a request to tag the image in a particular container onto an ImageStreamTag.
type TagImageHook struct {
// ContainerName is the name of a container in the deployment config whose image value will be used as the source of the tag. If there is only a single
// container this value will be defaulted to the name of that container.
ContainerName string
// To is the target ImageStreamTag to set the container's image onto.
To kapi.ObjectReference
}
// DeploymentTriggerPolicy describes a policy for a single trigger that results in a new deployment.
type DeploymentTriggerPolicy struct {
// Type of the trigger
Type DeploymentTriggerType
// ImageChangeParams represents the parameters for the ImageChange trigger.
ImageChangeParams *DeploymentTriggerImageChangeParams
}
// DeploymentTriggerType refers to a specific DeploymentTriggerPolicy implementation.
type DeploymentTriggerType string
const (
// DeploymentTriggerManual is a placeholder implementation which does nothing.
DeploymentTriggerManual DeploymentTriggerType = "Manual"
// DeploymentTriggerOnImageChange will create new deployments in response to updated tags from
// a Docker image repository.
DeploymentTriggerOnImageChange DeploymentTriggerType = "ImageChange"
// DeploymentTriggerOnConfigChange will create new deployments in response to changes to
// the ControllerTemplate of a DeploymentConfig.
DeploymentTriggerOnConfigChange DeploymentTriggerType = "ConfigChange"
)
// DeploymentTriggerImageChangeParams represents the parameters to the ImageChange trigger.
type DeploymentTriggerImageChangeParams struct {
// Automatic means that the detection of a new tag value should result in an image update
// inside the pod template.
Automatic bool
// ContainerNames is used to restrict tag updates to the specified set of container names in a pod.
ContainerNames []string
// From is a reference to an image stream tag to watch for changes. From.Name is the only
// required subfield - if From.Namespace is blank, the namespace of the current deployment
// trigger will be used.
From kapi.ObjectReference
// LastTriggeredImage is the last image to be triggered.
LastTriggeredImage string
}
// DeploymentConfigStatus represents the current deployment state.
type DeploymentConfigStatus struct {
// LatestVersion is used to determine whether the current deployment associated with a deployment
// config is out of sync.
LatestVersion int64
// ObservedGeneration is the most recent generation observed by the deployment config controller.
ObservedGeneration int64
// Replicas is the total number of pods targeted by this deployment config.
Replicas int32
// UpdatedReplicas is the total number of non-terminated pods targeted by this deployment config
// that have the desired template spec.
UpdatedReplicas int32
// AvailableReplicas is the total number of available pods targeted by this deployment config.
AvailableReplicas int32
// UnavailableReplicas is the total number of unavailable pods targeted by this deployment config.
UnavailableReplicas int32
// Details are the reasons for the update to this deployment config.
// This could be based on a change made by the user or caused by an automatic trigger
Details *DeploymentDetails
// Conditions represents the latest available observations of a deployment config's current state.
Conditions []DeploymentCondition
// Total number of ready pods targeted by this deployment.
ReadyReplicas int32
}
// DeploymentDetails captures information about the causes of a deployment.
type DeploymentDetails struct {
// Message is the user specified change message, if this deployment was triggered manually by the user
Message string
// Causes are extended data associated with all the causes for creating a new deployment
Causes []DeploymentCause
}
// DeploymentCause captures information about a particular cause of a deployment.
type DeploymentCause struct {
// Type is the type of the trigger that resulted in the creation of a new deployment
Type DeploymentTriggerType
// ImageTrigger contains the image trigger details, if this trigger was fired based on an image change
ImageTrigger *DeploymentCauseImageTrigger
}
// DeploymentCauseImageTrigger contains information about a deployment caused by an image trigger
type DeploymentCauseImageTrigger struct {
// From is a reference to the changed object which triggered a deployment. The field may have
// the kinds DockerImage, ImageStreamTag, or ImageStreamImage.
From kapi.ObjectReference
}
type DeploymentConditionType string
// These are valid conditions of a deployment config.
const (
// DeploymentAvailable means the deployment config is available, ie. at least the minimum available
// replicas required are up and running for at least minReadySeconds.
DeploymentAvailable DeploymentConditionType = "Available"
// DeploymentProgressing means the deployment config is progressing. Progress for a deployment
// config is considered when a new replica set is created or adopted, and when new pods scale up or
// old pods scale down. Progress is not estimated for paused deployment configs, when the deployment
// config needs to rollback, or when progressDeadlineSeconds is not specified.
DeploymentProgressing DeploymentConditionType = "Progressing"
// DeploymentReplicaFailure is added in a deployment config when one of its pods
// fails to be created or deleted.
DeploymentReplicaFailure DeploymentConditionType = "ReplicaFailure"
)
// DeploymentCondition describes the state of a deployment config at a certain point.
type DeploymentCondition struct {
// Type of deployment condition.
Type DeploymentConditionType
// Status of the condition, one of True, False, Unknown.
Status kapi.ConditionStatus
// The last time this condition was updated.
LastUpdateTime unversioned.Time
// The last time the condition transitioned from one status to another.
LastTransitionTime unversioned.Time
// The reason for the condition's last transition.
Reason string
// A human readable message indicating details about the transition.
Message string
}
// DeploymentConfigList is a collection of deployment configs.
type DeploymentConfigList struct {
unversioned.TypeMeta
unversioned.ListMeta
// Items is a list of deployment configs
Items []DeploymentConfig
}
// DeploymentConfigRollback provides the input to rollback generation.
type DeploymentConfigRollback struct {
unversioned.TypeMeta
// Name of the deployment config that will be rolled back.
Name string
// UpdatedAnnotations is a set of new annotations that will be added in the deployment config.
UpdatedAnnotations map[string]string
// Spec defines the options to rollback generation.
Spec DeploymentConfigRollbackSpec
}
// DeploymentConfigRollbackSpec represents the options for rollback generation.
type DeploymentConfigRollbackSpec struct {
// From points to a ReplicationController which is a deployment.
From kapi.ObjectReference
// Revision to rollback to. If set to 0, rollback to the last revision.
Revision int64
// IncludeTriggers specifies whether to include config Triggers.
IncludeTriggers bool
// IncludeTemplate specifies whether to include the PodTemplateSpec.
IncludeTemplate bool
// IncludeReplicationMeta specifies whether to include the replica count and selector.
IncludeReplicationMeta bool
// IncludeStrategy specifies whether to include the deployment Strategy.
IncludeStrategy bool
}
// DeploymentRequest is a request to a deployment config for a new deployment.
type DeploymentRequest struct {
unversioned.TypeMeta
// Name of the deployment config for requesting a new deployment.
Name string
// Latest will update the deployment config with the latest state from all triggers.
Latest bool
// Force will try to force a new deployment to run. If the deployment config is paused,
// then setting this to true will return an Invalid error.
Force bool
}
// DeploymentLog represents the logs for a deployment
type DeploymentLog struct {
unversioned.TypeMeta
}
// DeploymentLogOptions is the REST options for a deployment log
type DeploymentLogOptions struct {
unversioned.TypeMeta
// Container for which to return logs
Container string
// Follow if true indicates that the deployment log should be streamed until
// the deployment terminates.
Follow bool
// If true, return previous deployment logs
Previous bool
// 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
// An RFC3339 timestamp 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.
SinceTime *unversioned.Time
// If true, add an RFC3339 or RFC3339Nano timestamp at the beginning of every line
// of log output.
Timestamps bool
// 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
// 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
// NoWait if true causes the call to return immediately even if the deployment
// is not available yet. Otherwise the server will wait until the deployment has started.
NoWait bool
// Version of the deployment for which to view logs.
Version *int64
}