deployment

Documentation

Index

• Constants
• func FindNewReplicaSet(deployment *extensions.Deployment, rsList []extensions.ReplicaSet) (*extensions.ReplicaSet, error)
• func FindOldReplicaSets(deployment *extensions.Deployment, rsList []extensions.ReplicaSet, ...) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error)
• func GetActualReplicaCountForReplicaSets(replicaSets []*extensions.ReplicaSet) int32
• func GetAvailablePodsForReplicaSets(c clientset.Interface, rss []*extensions.ReplicaSet, minReadySeconds int32) (int32, error)
• func GetNewReplicaSet(deployment *extensions.Deployment, c clientset.Interface) (*extensions.ReplicaSet, error)
• func GetNewReplicaSetTemplate(deployment *extensions.Deployment) api.PodTemplateSpec
• func GetOldReplicaSets(deployment *extensions.Deployment, c clientset.Interface) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error)
• func GetPodsForReplicaSets(c clientset.Interface, replicaSets []*extensions.ReplicaSet) ([]api.Pod, error)
• func GetReplicaCountForReplicaSets(replicaSets []*extensions.ReplicaSet) int32
• func IsPodAvailable(pod *api.Pod, minReadySeconds int32) bool
• func IsRollingUpdate(deployment *extensions.Deployment) bool
• func LabelPodsWithHash(podList *api.PodList, rs *extensions.ReplicaSet, c clientset.Interface, ...) (bool, error)
• func ListPods(deployment *extensions.Deployment, getPodList podListFunc) (*api.PodList, error)
• func ListReplicaSets(deployment *extensions.Deployment, getRSList rsListFunc) ([]extensions.ReplicaSet, error)
• func NewRSNewReplicas(deployment *extensions.Deployment, allRSs []*extensions.ReplicaSet, ...) (int32, error)
• func ResolveFenceposts(maxSurge, maxUnavailable *intstrutil.IntOrString, desired int32) (int32, int32, error)
• func Revision(rs *extensions.ReplicaSet) (int64, error)
• func SetFromReplicaSetTemplate(deployment *extensions.Deployment, template api.PodTemplateSpec) *extensions.Deployment
• func WaitForObservedDeployment(getDeploymentFunc func() (*extensions.Deployment, error), ...) error
• func WaitForPodsHashPopulated(c clientset.Interface, desiredGeneration int64, namespace, name string) error
• func WaitForReplicaSetUpdated(c clientset.Interface, desiredGeneration int64, namespace, name string) error

Constants

const (
	// The revision annotation of a deployment's replica sets which records its rollout sequence
	RevisionAnnotation = "deployment.kubernetes.io/revision"

	// Here are the possible rollback event reasons
	RollbackRevisionNotFound  = "DeploymentRollbackRevisionNotFound"
	RollbackTemplateUnchanged = "DeploymentRollbackTemplateUnchanged"
	RollbackDone              = "DeploymentRollback"
)

Functions

func FindNewReplicaSet

func FindNewReplicaSet(deployment *extensions.Deployment, rsList []extensions.ReplicaSet) (*extensions.ReplicaSet, error)

FindNewReplicaSet returns the new RS this given deployment targets (the one with the same pod template).

func FindOldReplicaSets

func FindOldReplicaSets(deployment *extensions.Deployment, rsList []extensions.ReplicaSet, podList *api.PodList) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error)

FindOldReplicaSets returns the old replica sets targeted by the given Deployment, with the given PodList and slice of RSes. Note that the first set of old replica sets doesn't include the ones with no pods, and the second set of old replica sets include all old replica sets.

func GetActualReplicaCountForReplicaSets

func GetActualReplicaCountForReplicaSets(replicaSets []*extensions.ReplicaSet) int32

GetActualReplicaCountForReplicaSets returns the sum of actual replicas of the given replica sets.

func GetAvailablePodsForReplicaSets

func GetAvailablePodsForReplicaSets(c clientset.Interface, rss []*extensions.ReplicaSet, minReadySeconds int32) (int32, error)

Returns the number of available pods corresponding to the given replica sets.

func GetNewReplicaSet

func GetNewReplicaSet(deployment *extensions.Deployment, c clientset.Interface) (*extensions.ReplicaSet, error)

GetNewReplicaSet returns a replica set that matches the intent of the given deployment; get ReplicaSetList from client interface. Returns nil if the new replica set doesn't exist yet.

func GetNewReplicaSetTemplate

func GetNewReplicaSetTemplate(deployment *extensions.Deployment) api.PodTemplateSpec

Returns the desired PodTemplateSpec for the new ReplicaSet corresponding to the given ReplicaSet.

func GetOldReplicaSets

func GetOldReplicaSets(deployment *extensions.Deployment, c clientset.Interface) ([]*extensions.ReplicaSet, []*extensions.ReplicaSet, error)

GetOldReplicaSets returns the old replica sets targeted by the given Deployment; get PodList and ReplicaSetList from client interface. Note that the first set of old replica sets doesn't include the ones with no pods, and the second set of old replica sets include all old replica sets.

func GetPodsForReplicaSets

func GetPodsForReplicaSets(c clientset.Interface, replicaSets []*extensions.ReplicaSet) ([]api.Pod, error)

func GetReplicaCountForReplicaSets

func GetReplicaCountForReplicaSets(replicaSets []*extensions.ReplicaSet) int32

Returns the sum of Replicas of the given replica sets.

func IsPodAvailable

func IsPodAvailable(pod *api.Pod, minReadySeconds int32) bool

func IsRollingUpdate

func IsRollingUpdate(deployment *extensions.Deployment) bool

func LabelPodsWithHash

func LabelPodsWithHash(podList *api.PodList, rs *extensions.ReplicaSet, c clientset.Interface, namespace, hash string) (bool, error)

LabelPodsWithHash labels all pods in the given podList with the new hash label. The returned bool value can be used to tell if all pods are actually labeled.

func ListPods

func ListPods(deployment *extensions.Deployment, getPodList podListFunc) (*api.PodList, error)

ListPods returns a list of pods the given deployment targets.

func ListReplicaSets

func ListReplicaSets(deployment *extensions.Deployment, getRSList rsListFunc) ([]extensions.ReplicaSet, error)

ListReplicaSets returns a slice of RSes the given deployment targets.

func NewRSNewReplicas

func NewRSNewReplicas(deployment *extensions.Deployment, allRSs []*extensions.ReplicaSet, newRS *extensions.ReplicaSet) (int32, error)

NewRSNewReplicas calculates the number of replicas a deployment's new RS should have. When one of the followings is true, we're rolling out the deployment; otherwise, we're scaling it. 1) The new RS is saturated: newRS's replicas == deployment's replicas 2) Max number of pods allowed is reached: deployment's replicas + maxSurge == all RSs' replicas

func ResolveFenceposts

func ResolveFenceposts(maxSurge, maxUnavailable *intstrutil.IntOrString, desired int32) (int32, int32, error)

ResolveFenceposts resolves both maxSurge and maxUnavailable. This needs to happen in one step. For example:

2 desired, max unavailable 1%, surge 0% - should scale old(-1), then new(+1), then old(-1), then new(+1) 1 desired, max unavailable 1%, surge 0% - should scale old(-1), then new(+1) 2 desired, max unavailable 25%, surge 1% - should scale new(+1), then old(-1), then new(+1), then old(-1) 1 desired, max unavailable 25%, surge 1% - should scale new(+1), then old(-1) 2 desired, max unavailable 0%, surge 1% - should scale new(+1), then old(-1), then new(+1), then old(-1) 1 desired, max unavailable 0%, surge 1% - should scale new(+1), then old(-1)

func Revision

func Revision(rs *extensions.ReplicaSet) (int64, error)

Revision returns the revision number of the input replica set

func SetFromReplicaSetTemplate

func SetFromReplicaSetTemplate(deployment *extensions.Deployment, template api.PodTemplateSpec) *extensions.Deployment

SetFromReplicaSetTemplate sets the desired PodTemplateSpec from a replica set template to the given deployment.

func WaitForObservedDeployment

func WaitForObservedDeployment(getDeploymentFunc func() (*extensions.Deployment, error), desiredGeneration int64, interval, timeout time.Duration) error

Polls for deployment to be updated so that deployment.Status.ObservedGeneration >= desiredGeneration. Returns error if polling timesout.

func WaitForPodsHashPopulated

func WaitForPodsHashPopulated(c clientset.Interface, desiredGeneration int64, namespace, name string) error

func WaitForReplicaSetUpdated

func WaitForReplicaSetUpdated(c clientset.Interface, desiredGeneration int64, namespace, name string) error