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convert rolling updater to generated client

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This commit is contained in:
deads2k
2016-09-08 10:24:02 -04:00
parent 11c4de457d
commit f756e43e7f
7 changed files with 174 additions and 137 deletions
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25
pkg/client/unversioned/conditions.go
View File

@@ -25,20 +25,24 @@ import (
"k8s.io/kubernetes/pkg/apis/apps"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/extensions"
appsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/apps/unversioned"
batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/unversioned"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned"
extensionsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/unversioned"
"k8s.io/kubernetes/pkg/util/wait"
"k8s.io/kubernetes/pkg/watch"
)
// ControllerHasDesiredReplicas returns a condition that will be true if and only if
// the desired replica count for a controller's ReplicaSelector equals the Replicas count.
func ControllerHasDesiredReplicas(c Interface, controller *api.ReplicationController) wait.ConditionFunc {
func ControllerHasDesiredReplicas(rcClient coreclient.ReplicationControllersGetter, controller *api.ReplicationController) wait.ConditionFunc {
// If we're given a controller where the status lags the spec, it either means that the controller is stale,
// or that the rc manager hasn't noticed the update yet. Polling status.Replicas is not safe in the latter case.
desiredGeneration := controller.Generation
return func() (bool, error) {
ctrl, err := c.ReplicationControllers(controller.Namespace).Get(controller.Name)
ctrl, err := rcClient.ReplicationControllers(controller.Namespace).Get(controller.Name)
if err != nil {
return false, err
}
@@ -52,7 +56,7 @@ func ControllerHasDesiredReplicas(c Interface, controller *api.ReplicationContro
// ReplicaSetHasDesiredReplicas returns a condition that will be true if and only if
// the desired replica count for a ReplicaSet's ReplicaSelector equals the Replicas count.
func ReplicaSetHasDesiredReplicas(c ExtensionsInterface, replicaSet *extensions.ReplicaSet) wait.ConditionFunc {
func ReplicaSetHasDesiredReplicas(rsClient extensionsclient.ReplicaSetsGetter, replicaSet *extensions.ReplicaSet) wait.ConditionFunc {
// If we're given a ReplicaSet where the status lags the spec, it either means that the
// ReplicaSet is stale, or that the ReplicaSet manager hasn't noticed the update yet.
@@ -60,7 +64,7 @@ func ReplicaSetHasDesiredReplicas(c ExtensionsInterface, replicaSet *extensions.
desiredGeneration := replicaSet.Generation
return func() (bool, error) {
rs, err := c.ReplicaSets(replicaSet.Namespace).Get(replicaSet.Name)
rs, err := rsClient.ReplicaSets(replicaSet.Namespace).Get(replicaSet.Name)
if err != nil {
return false, err
}
@@ -73,10 +77,10 @@ func ReplicaSetHasDesiredReplicas(c ExtensionsInterface, replicaSet *extensions.
}
}
func PetSetHasDesiredPets(c AppsInterface, petset *apps.PetSet) wait.ConditionFunc {
func PetSetHasDesiredPets(psClient appsclient.PetSetsGetter, petset *apps.PetSet) wait.ConditionFunc {
// TODO: Differentiate between 0 pets and a really quick scale down using generation.
return func() (bool, error) {
ps, err := c.PetSets(petset.Namespace).Get(petset.Name)
ps, err := psClient.PetSets(petset.Namespace).Get(petset.Name)
if err != nil {
return false, err
}
@@ -86,10 +90,9 @@ func PetSetHasDesiredPets(c AppsInterface, petset *apps.PetSet) wait.ConditionFu
// JobHasDesiredParallelism returns a condition that will be true if the desired parallelism count
// for a job equals the current active counts or is less by an appropriate successful/unsuccessful count.
func JobHasDesiredParallelism(c BatchInterface, job *batch.Job) wait.ConditionFunc {
func JobHasDesiredParallelism(jobClient batchclient.JobsGetter, job *batch.Job) wait.ConditionFunc {
return func() (bool, error) {
job, err := c.Jobs(job.Namespace).Get(job.Name)
job, err := jobClient.Jobs(job.Namespace).Get(job.Name)
if err != nil {
return false, err
}
@@ -112,7 +115,7 @@ func JobHasDesiredParallelism(c BatchInterface, job *batch.Job) wait.ConditionFu
// DeploymentHasDesiredReplicas returns a condition that will be true if and only if
// the desired replica count for a deployment equals its updated replicas count.
// (non-terminated pods that have the desired template spec).
func DeploymentHasDesiredReplicas(c ExtensionsInterface, deployment *extensions.Deployment) wait.ConditionFunc {
func DeploymentHasDesiredReplicas(dClient extensionsclient.DeploymentsGetter, deployment *extensions.Deployment) wait.ConditionFunc {
// If we're given a deployment where the status lags the spec, it either
// means that the deployment is stale, or that the deployment manager hasn't
// noticed the update yet. Polling status.Replicas is not safe in the latter
@@ -120,7 +123,7 @@ func DeploymentHasDesiredReplicas(c ExtensionsInterface, deployment *extensions.
desiredGeneration := deployment.Generation
return func() (bool, error) {
deployment, err := c.Deployments(deployment.Namespace).Get(deployment.Name)
deployment, err := dClient.Deployments(deployment.Namespace).Get(deployment.Name)
if err != nil {
return false, err
}

26
pkg/kubectl/cmd/rollingupdate.go
View File

@@ -27,6 +27,7 @@ import (
"github.com/renstrom/dedent"
"github.com/spf13/cobra"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/errors"
"k8s.io/kubernetes/pkg/api/meta"
@@ -177,24 +178,25 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
return err
}
client, err := f.Client()
clientset, err := f.ClientSet()
if err != nil {
return err
}
coreClient := clientset.Core()
var newRc *api.ReplicationController
// fetch rc
oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName)
oldRc, err := coreClient.ReplicationControllers(cmdNamespace).Get(oldName)
if err != nil {
if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 {
return err
}
// We're in the middle of a rename, look for an RC with a source annotation of oldName
newRc, err := kubectl.FindSourceController(client, cmdNamespace, oldName)
newRc, err := kubectl.FindSourceController(coreClient, cmdNamespace, oldName)
if err != nil {
return err
}
return kubectl.Rename(client, newRc, oldName)
return kubectl.Rename(coreClient, newRc, oldName)
}
var keepOldName bool
@@ -248,10 +250,10 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
// than the old rc. This selector is the hash of the rc, with a suffix to provide uniqueness for
// same-image updates.
if len(image) != 0 {
codec := api.Codecs.LegacyCodec(client.APIVersion())
codec := api.Codecs.LegacyCodec(clientset.CoreClient.APIVersion())
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
if newRc, err = kubectl.LoadExistingNextReplicationController(coreClient, cmdNamespace, newName); err != nil {
return err
}
if newRc != nil {
@@ -274,7 +276,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
}
config.PullPolicy = api.PullPolicy(pullPolicy)
}
newRc, err = kubectl.CreateNewControllerFromCurrentController(client, codec, config)
newRc, err = kubectl.CreateNewControllerFromCurrentController(coreClient, codec, config)
if err != nil {
return err
}
@@ -287,7 +289,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
}
// If new image is same as old, the hash may not be distinct, so add a suffix.
oldHash += "-orig"
oldRc, err = kubectl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out)
oldRc, err = kubectl.UpdateExistingReplicationController(coreClient, coreClient, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out)
if err != nil {
return err
}
@@ -296,7 +298,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
if rollback {
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
if newRc, err = kubectl.LoadExistingNextReplicationController(coreClient, cmdNamespace, newName); err != nil {
return err
}
@@ -310,7 +312,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
filename, oldName)
}
updater := kubectl.NewRollingUpdater(newRc.Namespace, client)
updater := kubectl.NewRollingUpdater(newRc.Namespace, coreClient, coreClient)
// To successfully pull off a rolling update the new and old rc have to differ
// by at least one selector. Every new pod should have the selector and every
@@ -367,7 +369,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
if err != nil {
return err
}
client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc)
coreClient.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc)
}
err = updater.Update(config)
if err != nil {
@@ -380,7 +382,7 @@ func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, arg
} else {
message = fmt.Sprintf("rolling updated to %q", newRc.Name)
}
newRc, err = client.ReplicationControllers(cmdNamespace).Get(newRc.Name)
newRc, err = coreClient.ReplicationControllers(cmdNamespace).Get(newRc.Name)
if err != nil {
return err
}

37
pkg/kubectl/cmd/util/clientcache.go
View File

@@ -20,6 +20,7 @@ import (
fed_clientset "k8s.io/kubernetes/federation/client/clientset_generated/federation_internalclientset"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/apimachinery/registered"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/client/restclient"
client "k8s.io/kubernetes/pkg/client/unversioned"
"k8s.io/kubernetes/pkg/client/unversioned/clientcmd"
@@ -28,6 +29,7 @@ import (
func NewClientCache(loader clientcmd.ClientConfig) *ClientCache {
return &ClientCache{
clients: make(map[unversioned.GroupVersion]*client.Client),
clientsets: make(map[unversioned.GroupVersion]*internalclientset.Clientset),
configs: make(map[unversioned.GroupVersion]*restclient.Config),
fedClientSets: make(map[unversioned.GroupVersion]fed_clientset.Interface),
loader: loader,
@@ -39,6 +41,7 @@ func NewClientCache(loader clientcmd.ClientConfig) *ClientCache {
type ClientCache struct {
loader clientcmd.ClientConfig
clients map[unversioned.GroupVersion]*client.Client
clientsets map[unversioned.GroupVersion]*internalclientset.Clientset
fedClientSets map[unversioned.GroupVersion]fed_clientset.Interface
configs map[unversioned.GroupVersion]*restclient.Config
defaultConfig *restclient.Config
@@ -95,6 +98,40 @@ func (c *ClientCache) ClientConfigForVersion(version *unversioned.GroupVersion)
return &config, nil
}
// ClientSetForVersion initializes or reuses a clientset for the specified version, or returns an
// error if that is not possible
func (c *ClientCache) ClientSetForVersion(version *unversioned.GroupVersion) (*internalclientset.Clientset, error) {
if version != nil {
if clientset, ok := c.clientsets[*version]; ok {
return clientset, nil
}
}
config, err := c.ClientConfigForVersion(version)
if err != nil {
return nil, err
}
clientset, err := internalclientset.NewForConfig(config)
if err != nil {
return nil, err
}
c.clientsets[*config.GroupVersion] = clientset
// `version` does not necessarily equal `config.Version`. However, we know that if we call this method again with
// `version`, we should get a client based on the same config we just found. There's no guarantee that a client
// is copiable, so create a new client and save it in the cache.
if version != nil {
configCopy := *config
clientset, err := internalclientset.NewForConfig(&configCopy)
if err != nil {
return nil, err
}
c.clientsets[*version] = clientset
}
return clientset, nil
}
// ClientForVersion initializes or reuses a client for the specified version, or returns an
// error if that is not possible
func (c *ClientCache) ClientForVersion(version *unversioned.GroupVersion) (*client.Client, error) {

15
pkg/kubectl/cmd/util/factory.go
View File

@@ -431,12 +431,7 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
return restclient.RESTClientFor(clientConfig)
},
ClientSet: func() (*internalclientset.Clientset, error) {
cfg, err := clients.ClientConfigForVersion(nil)
if err != nil {
return nil, err
}
return internalclientset.NewForConfig(cfg)
return clients.ClientSetForVersion(nil)
},
ClientConfig: func() (*restclient.Config, error) {
return clients.ClientConfigForVersion(nil)
@@ -706,19 +701,19 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
},
Scaler: func(mapping *meta.RESTMapping) (kubectl.Scaler, error) {
mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
clientset, err := clients.ClientSetForVersion(&mappingVersion)
if err != nil {
return nil, err
}
return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), client)
return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), clientset)
},
Reaper: func(mapping *meta.RESTMapping) (kubectl.Reaper, error) {
mappingVersion := mapping.GroupVersionKind.GroupVersion()
client, err := clients.ClientForVersion(&mappingVersion)
clientset, err := clients.ClientSetForVersion(&mappingVersion)
if err != nil {
return nil, err
}
return kubectl.ReaperFor(mapping.GroupVersionKind.GroupKind(), client)
return kubectl.ReaperFor(mapping.GroupVersionKind.GroupKind(), clientset)
},
HistoryViewer: func(mapping *meta.RESTMapping) (kubectl.HistoryViewer, error) {
mappingVersion := mapping.GroupVersionKind.GroupVersion()

85
pkg/kubectl/rolling_updater.go
View File

@@ -27,6 +27,7 @@ import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/errors"
"k8s.io/kubernetes/pkg/api/unversioned"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned"
client "k8s.io/kubernetes/pkg/client/unversioned"
deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
"k8s.io/kubernetes/pkg/labels"
@@ -109,8 +110,8 @@ const (
// RollingUpdater provides methods for updating replicated pods in a predictable,
// fault-tolerant way.
type RollingUpdater struct {
// Client interface for creating and updating controllers
c client.Interface
rcClient coreclient.ReplicationControllersGetter
podClient coreclient.PodsGetter
// Namespace for resources
ns string
// scaleAndWait scales a controller and returns its updated state.
@@ -127,10 +128,11 @@ type RollingUpdater struct {
}
// NewRollingUpdater creates a RollingUpdater from a client.
func NewRollingUpdater(namespace string, client client.Interface) *RollingUpdater {
func NewRollingUpdater(namespace string, rcClient coreclient.ReplicationControllersGetter, podClient coreclient.PodsGetter) *RollingUpdater {
updater := &RollingUpdater{
c: client,
ns: namespace,
rcClient: rcClient,
podClient: podClient,
ns: namespace,
}
// Inject real implementations.
updater.scaleAndWait = updater.scaleAndWaitWithScaler
@@ -189,7 +191,7 @@ func (r *RollingUpdater) Update(config *RollingUpdaterConfig) error {
// annotation if it doesn't yet exist.
_, hasOriginalAnnotation := oldRc.Annotations[originalReplicasAnnotation]
if !hasOriginalAnnotation {
existing, err := r.c.ReplicationControllers(oldRc.Namespace).Get(oldRc.Name)
existing, err := r.rcClient.ReplicationControllers(oldRc.Namespace).Get(oldRc.Name)
if err != nil {
return err
}
@@ -200,7 +202,7 @@ func (r *RollingUpdater) Update(config *RollingUpdaterConfig) error {
}
rc.Annotations[originalReplicasAnnotation] = originReplicas
}
if oldRc, err = updateRcWithRetries(r.c, existing.Namespace, existing, applyUpdate); err != nil {
if oldRc, err = updateRcWithRetries(r.rcClient, existing.Namespace, existing, applyUpdate); err != nil {
return err
}
}
@@ -390,14 +392,11 @@ func (r *RollingUpdater) scaleDown(newRc, oldRc *api.ReplicationController, desi
// scalerScaleAndWait scales a controller using a Scaler and a real client.
func (r *RollingUpdater) scaleAndWaitWithScaler(rc *api.ReplicationController, retry *RetryParams, wait *RetryParams) (*api.ReplicationController, error) {
scaler, err := ScalerFor(api.Kind("ReplicationController"), r.c)
if err != nil {
return nil, fmt.Errorf("Couldn't make scaler: %s", err)
}
scaler := &ReplicationControllerScaler{r.rcClient}
if err := scaler.Scale(rc.Namespace, rc.Name, uint(rc.Spec.Replicas), &ScalePrecondition{-1, ""}, retry, wait); err != nil {
return nil, err
}
return r.c.ReplicationControllers(rc.Namespace).Get(rc.Name)
return r.rcClient.ReplicationControllers(rc.Namespace).Get(rc.Name)
}
// readyPods returns the old and new ready counts for their pods.
@@ -415,7 +414,7 @@ func (r *RollingUpdater) readyPods(oldRc, newRc *api.ReplicationController, minR
controller := controllers[i]
selector := labels.Set(controller.Spec.Selector).AsSelector()
options := api.ListOptions{LabelSelector: selector}
pods, err := r.c.Pods(controller.Namespace).List(options)
pods, err := r.podClient.Pods(controller.Namespace).List(options)
if err != nil {
return 0, 0, err
}
@@ -460,7 +459,7 @@ func (r *RollingUpdater) getOrCreateTargetControllerWithClient(controller *api.R
controller.Annotations[desiredReplicasAnnotation] = fmt.Sprintf("%d", controller.Spec.Replicas)
controller.Annotations[sourceIdAnnotation] = sourceId
controller.Spec.Replicas = 0
newRc, err := r.c.ReplicationControllers(r.ns).Create(controller)
newRc, err := r.rcClient.ReplicationControllers(r.ns).Create(controller)
return newRc, false, err
}
// Validate and use the existing controller.
@@ -480,7 +479,7 @@ func (r *RollingUpdater) existingController(controller *api.ReplicationControlle
return nil, errors.NewNotFound(api.Resource("replicationcontrollers"), controller.Name)
}
// controller name is required to get rc back
return r.c.ReplicationControllers(controller.Namespace).Get(controller.Name)
return r.rcClient.ReplicationControllers(controller.Namespace).Get(controller.Name)
}
// cleanupWithClients performs cleanup tasks after the rolling update. Update
@@ -489,7 +488,7 @@ func (r *RollingUpdater) existingController(controller *api.ReplicationControlle
func (r *RollingUpdater) cleanupWithClients(oldRc, newRc *api.ReplicationController, config *RollingUpdaterConfig) error {
// Clean up annotations
var err error
newRc, err = r.c.ReplicationControllers(r.ns).Get(newRc.Name)
newRc, err = r.rcClient.ReplicationControllers(r.ns).Get(newRc.Name)
if err != nil {
return err
}
@@ -497,14 +496,14 @@ func (r *RollingUpdater) cleanupWithClients(oldRc, newRc *api.ReplicationControl
delete(rc.Annotations, sourceIdAnnotation)
delete(rc.Annotations, desiredReplicasAnnotation)
}
if newRc, err = updateRcWithRetries(r.c, r.ns, newRc, applyUpdate); err != nil {
if newRc, err = updateRcWithRetries(r.rcClient, r.ns, newRc, applyUpdate); err != nil {
return err
}
if err = wait.Poll(config.Interval, config.Timeout, client.ControllerHasDesiredReplicas(r.c, newRc)); err != nil {
if err = wait.Poll(config.Interval, config.Timeout, client.ControllerHasDesiredReplicas(r.rcClient, newRc)); err != nil {
return err
}
newRc, err = r.c.ReplicationControllers(r.ns).Get(newRc.Name)
newRc, err = r.rcClient.ReplicationControllers(r.ns).Get(newRc.Name)
if err != nil {
return err
}
@@ -513,15 +512,15 @@ func (r *RollingUpdater) cleanupWithClients(oldRc, newRc *api.ReplicationControl
case DeleteRollingUpdateCleanupPolicy:
// delete old rc
fmt.Fprintf(config.Out, "Update succeeded. Deleting %s\n", oldRc.Name)
return r.c.ReplicationControllers(r.ns).Delete(oldRc.Name, nil)
return r.rcClient.ReplicationControllers(r.ns).Delete(oldRc.Name, nil)
case RenameRollingUpdateCleanupPolicy:
// delete old rc
fmt.Fprintf(config.Out, "Update succeeded. Deleting old controller: %s\n", oldRc.Name)
if err := r.c.ReplicationControllers(r.ns).Delete(oldRc.Name, nil); err != nil {
if err := r.rcClient.ReplicationControllers(r.ns).Delete(oldRc.Name, nil); err != nil {
return err
}
fmt.Fprintf(config.Out, "Renaming %s to %s\n", oldRc.Name, newRc.Name)
return Rename(r.c, newRc, oldRc.Name)
return Rename(r.rcClient, newRc, oldRc.Name)
case PreserveRollingUpdateCleanupPolicy:
return nil
default:
@@ -529,7 +528,7 @@ func (r *RollingUpdater) cleanupWithClients(oldRc, newRc *api.ReplicationControl
}
}
func Rename(c client.ReplicationControllersNamespacer, rc *api.ReplicationController, newName string) error {
func Rename(c coreclient.ReplicationControllersGetter, rc *api.ReplicationController, newName string) error {
oldName := rc.Name
rc.Name = newName
rc.ResourceVersion = ""
@@ -560,7 +559,7 @@ func Rename(c client.ReplicationControllersNamespacer, rc *api.ReplicationContro
return nil
}
func LoadExistingNextReplicationController(c client.ReplicationControllersNamespacer, namespace, newName string) (*api.ReplicationController, error) {
func LoadExistingNextReplicationController(c coreclient.ReplicationControllersGetter, namespace, newName string) (*api.ReplicationController, error) {
if len(newName) == 0 {
return nil, nil
}
@@ -580,10 +579,10 @@ type NewControllerConfig struct {
PullPolicy api.PullPolicy
}
func CreateNewControllerFromCurrentController(c client.Interface, codec runtime.Codec, cfg *NewControllerConfig) (*api.ReplicationController, error) {
func CreateNewControllerFromCurrentController(rcClient coreclient.ReplicationControllersGetter, codec runtime.Codec, cfg *NewControllerConfig) (*api.ReplicationController, error) {
containerIndex := 0
// load the old RC into the "new" RC
newRc, err := c.ReplicationControllers(cfg.Namespace).Get(cfg.OldName)
newRc, err := rcClient.ReplicationControllers(cfg.Namespace).Get(cfg.OldName)
if err != nil {
return nil, err
}
@@ -669,21 +668,21 @@ func SetNextControllerAnnotation(rc *api.ReplicationController, name string) {
rc.Annotations[nextControllerAnnotation] = name
}
func UpdateExistingReplicationController(c client.Interface, oldRc *api.ReplicationController, namespace, newName, deploymentKey, deploymentValue string, out io.Writer) (*api.ReplicationController, error) {
func UpdateExistingReplicationController(rcClient coreclient.ReplicationControllersGetter, podClient coreclient.PodsGetter, oldRc *api.ReplicationController, namespace, newName, deploymentKey, deploymentValue string, out io.Writer) (*api.ReplicationController, error) {
if _, found := oldRc.Spec.Selector[deploymentKey]; !found {
SetNextControllerAnnotation(oldRc, newName)
return AddDeploymentKeyToReplicationController(oldRc, c, deploymentKey, deploymentValue, namespace, out)
return AddDeploymentKeyToReplicationController(oldRc, rcClient, podClient, deploymentKey, deploymentValue, namespace, out)
} else {
// If we didn't need to update the controller for the deployment key, we still need to write
// the "next" controller.
applyUpdate := func(rc *api.ReplicationController) {
SetNextControllerAnnotation(rc, newName)
}
return updateRcWithRetries(c, namespace, oldRc, applyUpdate)
return updateRcWithRetries(rcClient, namespace, oldRc, applyUpdate)
}
}
func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, client client.Interface, deploymentKey, deploymentValue, namespace string, out io.Writer) (*api.ReplicationController, error) {
func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, rcClient coreclient.ReplicationControllersGetter, podClient coreclient.PodsGetter, deploymentKey, deploymentValue, namespace string, out io.Writer) (*api.ReplicationController, error) {
var err error
// First, update the template label. This ensures that any newly created pods will have the new label
applyUpdate := func(rc *api.ReplicationController) {
@@ -692,7 +691,7 @@ func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, c
}
rc.Spec.Template.Labels[deploymentKey] = deploymentValue
}
if oldRc, err = updateRcWithRetries(client, namespace, oldRc, applyUpdate); err != nil {
if oldRc, err = updateRcWithRetries(rcClient, namespace, oldRc, applyUpdate); err != nil {
return nil, err
}
@@ -700,7 +699,7 @@ func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, c
// TODO: extract the code from the label command and re-use it here.
selector := labels.SelectorFromSet(oldRc.Spec.Selector)
options := api.ListOptions{LabelSelector: selector}
podList, err := client.Pods(namespace).List(options)
podList, err := podClient.Pods(namespace).List(options)
if err != nil {
return nil, err
}
@@ -715,7 +714,7 @@ func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, c
p.Labels[deploymentKey] = deploymentValue
}
}
if pod, err = updatePodWithRetries(client, namespace, pod, applyUpdate); err != nil {
if pod, err = updatePodWithRetries(podClient, namespace, pod, applyUpdate); err != nil {
return nil, err
}
}
@@ -732,7 +731,7 @@ func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, c
rc.Spec.Selector[deploymentKey] = deploymentValue
}
// Update the selector of the rc so it manages all the pods we updated above
if oldRc, err = updateRcWithRetries(client, namespace, oldRc, applyUpdate); err != nil {
if oldRc, err = updateRcWithRetries(rcClient, namespace, oldRc, applyUpdate); err != nil {
return nil, err
}
@@ -741,11 +740,11 @@ func AddDeploymentKeyToReplicationController(oldRc *api.ReplicationController, c
// we've finished re-adopting existing pods to the rc.
selector = labels.SelectorFromSet(selectorCopy)
options = api.ListOptions{LabelSelector: selector}
podList, err = client.Pods(namespace).List(options)
podList, err = podClient.Pods(namespace).List(options)
for ix := range podList.Items {
pod := &podList.Items[ix]
if value, found := pod.Labels[deploymentKey]; !found || value != deploymentValue {
if err := client.Pods(namespace).Delete(pod.Name, nil); err != nil {
if err := podClient.Pods(namespace).Delete(pod.Name, nil); err != nil {
return nil, err
}
}
@@ -760,7 +759,7 @@ type updateRcFunc func(controller *api.ReplicationController)
// 1. Get latest resource
// 2. applyUpdate
// 3. Update the resource
func updateRcWithRetries(c client.Interface, namespace string, rc *api.ReplicationController, applyUpdate updateRcFunc) (*api.ReplicationController, error) {
func updateRcWithRetries(rcClient coreclient.ReplicationControllersGetter, namespace string, rc *api.ReplicationController, applyUpdate updateRcFunc) (*api.ReplicationController, error) {
// Deep copy the rc in case we failed on Get during retry loop
obj, err := api.Scheme.Copy(rc)
if err != nil {
@@ -770,14 +769,14 @@ func updateRcWithRetries(c client.Interface, namespace string, rc *api.Replicati
err = client.RetryOnConflict(client.DefaultBackoff, func() (e error) {
// Apply the update, then attempt to push it to the apiserver.
applyUpdate(rc)
if rc, e = c.ReplicationControllers(namespace).Update(rc); e == nil {
if rc, e = rcClient.ReplicationControllers(namespace).Update(rc); e == nil {
// rc contains the latest controller post update
return
}
updateErr := e
// Update the controller with the latest resource version, if the update failed we
// can't trust rc so use oldRc.Name.
if rc, e = c.ReplicationControllers(namespace).Get(oldRc.Name); e != nil {
if rc, e = rcClient.ReplicationControllers(namespace).Get(oldRc.Name); e != nil {
// The Get failed: Value in rc cannot be trusted.
rc = oldRc
}
@@ -795,7 +794,7 @@ type updatePodFunc func(controller *api.Pod)
// 1. Get latest resource
// 2. applyUpdate
// 3. Update the resource
func updatePodWithRetries(c client.Interface, namespace string, pod *api.Pod, applyUpdate updatePodFunc) (*api.Pod, error) {
func updatePodWithRetries(podClient coreclient.PodsGetter, namespace string, pod *api.Pod, applyUpdate updatePodFunc) (*api.Pod, error) {
// Deep copy the pod in case we failed on Get during retry loop
obj, err := api.Scheme.Copy(pod)
if err != nil {
@@ -805,11 +804,11 @@ func updatePodWithRetries(c client.Interface, namespace string, pod *api.Pod, ap
err = client.RetryOnConflict(client.DefaultBackoff, func() (e error) {
// Apply the update, then attempt to push it to the apiserver.
applyUpdate(pod)
if pod, e = c.Pods(namespace).Update(pod); e == nil {
if pod, e = podClient.Pods(namespace).Update(pod); e == nil {
return
}
updateErr := e
if pod, e = c.Pods(namespace).Get(oldPod.Name); e != nil {
if pod, e = podClient.Pods(namespace).Get(oldPod.Name); e != nil {
pod = oldPod
}
// Only return the error from update
@@ -820,7 +819,7 @@ func updatePodWithRetries(c client.Interface, namespace string, pod *api.Pod, ap
return pod, err
}
func FindSourceController(r client.ReplicationControllersNamespacer, namespace, name string) (*api.ReplicationController, error) {
func FindSourceController(r coreclient.ReplicationControllersGetter, namespace, name string) (*api.ReplicationController, error) {
list, err := r.ReplicationControllers(namespace).List(api.ListOptions{})
if err != nil {
return nil, err

19
pkg/kubectl/scale.go
View File

@@ -27,6 +27,11 @@ import (
"k8s.io/kubernetes/pkg/apis/apps"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
appsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/apps/unversioned"
batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/unversioned"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned"
extensionsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/unversioned"
client "k8s.io/kubernetes/pkg/client/unversioned"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/util/wait"
@@ -44,10 +49,10 @@ type Scaler interface {
ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint) (updatedResourceVersion string, err error)
}
func ScalerFor(kind unversioned.GroupKind, c client.Interface) (Scaler, error) {
func ScalerFor(kind unversioned.GroupKind, c *internalclientset.Clientset) (Scaler, error) {
switch kind {
case api.Kind("ReplicationController"):
return &ReplicationControllerScaler{c}, nil
return &ReplicationControllerScaler{c.Core()}, nil
case extensions.Kind("ReplicaSet"):
return &ReplicaSetScaler{c.Extensions()}, nil
case extensions.Kind("Job"), batch.Kind("Job"):
@@ -155,7 +160,7 @@ func (precondition *ScalePrecondition) ValidateReplicationController(controller
}
type ReplicationControllerScaler struct {
c client.Interface
c coreclient.ReplicationControllersGetter
}
// ScaleSimple does a simple one-shot attempt at scaling. It returns the
@@ -253,7 +258,7 @@ func (precondition *ScalePrecondition) ValidateReplicaSet(replicaSet *extensions
}
type ReplicaSetScaler struct {
c client.ExtensionsInterface
c extensionsclient.ReplicaSetsGetter
}
// ScaleSimple does a simple one-shot attempt at scaling. It returns the
@@ -324,7 +329,7 @@ func (precondition *ScalePrecondition) ValidateJob(job *batch.Job) error {
}
type PetSetScaler struct {
c client.AppsInterface
c appsclient.PetSetsGetter
}
// ScaleSimple does a simple one-shot attempt at scaling. It returns the
@@ -377,7 +382,7 @@ func (scaler *PetSetScaler) Scale(namespace, name string, newSize uint, precondi
}
type JobScaler struct {
c client.BatchInterface
c batchclient.JobsGetter
}
// ScaleSimple is responsible for updating job's parallelism. It returns the
@@ -445,7 +450,7 @@ func (precondition *ScalePrecondition) ValidateDeployment(deployment *extensions
}
type DeploymentScaler struct {
c client.ExtensionsInterface
c extensionsclient.DeploymentsGetter
}
// ScaleSimple is responsible for updating a deployment's desired replicas

104
pkg/kubectl/stop.go
View File

@@ -28,6 +28,11 @@ import (
"k8s.io/kubernetes/pkg/apis/apps"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
appsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/apps/unversioned"
batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/unversioned"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned"
extensionsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/unversioned"
client "k8s.io/kubernetes/pkg/client/unversioned"
deploymentutil "k8s.io/kubernetes/pkg/controller/deployment/util"
"k8s.io/kubernetes/pkg/labels"
@@ -63,68 +68,71 @@ func IsNoSuchReaperError(err error) bool {
return ok
}
func ReaperFor(kind unversioned.GroupKind, c client.Interface) (Reaper, error) {
func ReaperFor(kind unversioned.GroupKind, c *internalclientset.Clientset) (Reaper, error) {
switch kind {
case api.Kind("ReplicationController"):
return &ReplicationControllerReaper{c, Interval, Timeout}, nil
return &ReplicationControllerReaper{c.Core(), Interval, Timeout}, nil
case extensions.Kind("ReplicaSet"):
return &ReplicaSetReaper{c, Interval, Timeout}, nil
return &ReplicaSetReaper{c.Extensions(), Interval, Timeout}, nil
case extensions.Kind("DaemonSet"):
return &DaemonSetReaper{c, Interval, Timeout}, nil
return &DaemonSetReaper{c.Extensions(), Interval, Timeout}, nil
case api.Kind("Pod"):
return &PodReaper{c}, nil
return &PodReaper{c.Core()}, nil
case api.Kind("Service"):
return &ServiceReaper{c}, nil
return &ServiceReaper{c.Core()}, nil
case extensions.Kind("Job"), batch.Kind("Job"):
return &JobReaper{c, Interval, Timeout}, nil
return &JobReaper{c.Batch(), c.Core(), Interval, Timeout}, nil
case apps.Kind("PetSet"):
return &PetSetReaper{c, Interval, Timeout}, nil
return &PetSetReaper{c.Apps(), c.Core(), Interval, Timeout}, nil
case extensions.Kind("Deployment"):
return &DeploymentReaper{c, Interval, Timeout}, nil
return &DeploymentReaper{c.Extensions(), c.Extensions(), Interval, Timeout}, nil
}
return nil, &NoSuchReaperError{kind}
}
func ReaperForReplicationController(c client.Interface, timeout time.Duration) (Reaper, error) {
return &ReplicationControllerReaper{c, Interval, timeout}, nil
func ReaperForReplicationController(rcClient coreclient.ReplicationControllersGetter, timeout time.Duration) (Reaper, error) {
return &ReplicationControllerReaper{rcClient, Interval, timeout}, nil
}
type ReplicationControllerReaper struct {
client.Interface
client coreclient.ReplicationControllersGetter
pollInterval, timeout time.Duration
}
type ReplicaSetReaper struct {
client.Interface
client extensionsclient.ReplicaSetsGetter
pollInterval, timeout time.Duration
}
type DaemonSetReaper struct {
client.Interface
client extensionsclient.DaemonSetsGetter
pollInterval, timeout time.Duration
}
type JobReaper struct {
client.Interface
client batchclient.JobsGetter
podClient coreclient.PodsGetter
pollInterval, timeout time.Duration
}
type DeploymentReaper struct {
client.Interface
dClient extensionsclient.DeploymentsGetter
rsClient extensionsclient.ReplicaSetsGetter
pollInterval, timeout time.Duration
}
type PodReaper struct {
client.Interface
client coreclient.PodsGetter
}
type ServiceReaper struct {
client.Interface
client coreclient.ServicesGetter
}
type PetSetReaper struct {
client.Interface
client appsclient.PetSetsGetter
podClient coreclient.PodsGetter
pollInterval, timeout time.Duration
}
@@ -134,8 +142,8 @@ type objInterface interface {
}
// getOverlappingControllers finds rcs that this controller overlaps, as well as rcs overlapping this controller.
func getOverlappingControllers(c client.ReplicationControllerInterface, rc *api.ReplicationController) ([]api.ReplicationController, error) {
rcs, err := c.List(api.ListOptions{})
func getOverlappingControllers(rcClient coreclient.ReplicationControllerInterface, rc *api.ReplicationController) ([]api.ReplicationController, error) {
rcs, err := rcClient.List(api.ListOptions{})
if err != nil {
return nil, fmt.Errorf("error getting replication controllers: %v", err)
}
@@ -151,11 +159,8 @@ func getOverlappingControllers(c client.ReplicationControllerInterface, rc *api.
}
func (reaper *ReplicationControllerReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
rc := reaper.ReplicationControllers(namespace)
scaler, err := ScalerFor(api.Kind("ReplicationController"), *reaper)
if err != nil {
return err
}
rc := reaper.client.ReplicationControllers(namespace)
scaler := &ReplicationControllerScaler{reaper.client}
ctrl, err := rc.Get(name)
if err != nil {
return err
@@ -223,11 +228,8 @@ func getOverlappingReplicaSets(c client.ReplicaSetInterface, rs *extensions.Repl
}
func (reaper *ReplicaSetReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
rsc := reaper.Extensions().ReplicaSets(namespace)
scaler, err := ScalerFor(extensions.Kind("ReplicaSet"), *reaper)
if err != nil {
return err
}
rsc := reaper.client.ReplicaSets(namespace)
scaler := &ReplicaSetScaler{reaper.client}
rs, err := rsc.Get(name)
if err != nil {
return err
@@ -290,7 +292,7 @@ func (reaper *ReplicaSetReaper) Stop(namespace, name string, timeout time.Durati
}
func (reaper *DaemonSetReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
ds, err := reaper.Extensions().DaemonSets(namespace).Get(name)
ds, err := reaper.client.DaemonSets(namespace).Get(name)
if err != nil {
return err
}
@@ -305,13 +307,13 @@ func (reaper *DaemonSetReaper) Stop(namespace, name string, timeout time.Duratio
// force update to avoid version conflict
ds.ResourceVersion = ""
if ds, err = reaper.Extensions().DaemonSets(namespace).Update(ds); err != nil {
if ds, err = reaper.client.DaemonSets(namespace).Update(ds); err != nil {
return err
}
// Wait for the daemon set controller to kill all the daemon pods.
if err := wait.Poll(reaper.pollInterval, reaper.timeout, func() (bool, error) {
updatedDS, err := reaper.Extensions().DaemonSets(namespace).Get(name)
updatedDS, err := reaper.client.DaemonSets(namespace).Get(name)
if err != nil {
return false, nil
}
@@ -321,15 +323,12 @@ func (reaper *DaemonSetReaper) Stop(namespace, name string, timeout time.Duratio
return err
}
return reaper.Extensions().DaemonSets(namespace).Delete(name)
return reaper.client.DaemonSets(namespace).Delete(name, nil)
}
func (reaper *PetSetReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
petsets := reaper.Apps().PetSets(namespace)
scaler, err := ScalerFor(apps.Kind("PetSet"), *reaper)
if err != nil {
return err
}
petsets := reaper.client.PetSets(namespace)
scaler := &PetSetScaler{reaper.client}
ps, err := petsets.Get(name)
if err != nil {
return err
@@ -346,7 +345,7 @@ func (reaper *PetSetReaper) Stop(namespace, name string, timeout time.Duration,
// TODO: This shouldn't be needed, see corresponding TODO in PetSetHasDesiredPets.
// PetSet should track generation number.
pods := reaper.Pods(namespace)
pods := reaper.podClient.Pods(namespace)
selector, _ := unversioned.LabelSelectorAsSelector(ps.Spec.Selector)
options := api.ListOptions{LabelSelector: selector}
podList, err := pods.List(options)
@@ -372,12 +371,9 @@ func (reaper *PetSetReaper) Stop(namespace, name string, timeout time.Duration,
}
func (reaper *JobReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
jobs := reaper.Batch().Jobs(namespace)
pods := reaper.Pods(namespace)
scaler, err := ScalerFor(batch.Kind("Job"), *reaper)
if err != nil {
return err
}
jobs := reaper.client.Jobs(namespace)
pods := reaper.podClient.Pods(namespace)
scaler := &JobScaler{reaper.client}
job, err := jobs.Get(name)
if err != nil {
return err
@@ -418,9 +414,9 @@ func (reaper *JobReaper) Stop(namespace, name string, timeout time.Duration, gra
}
func (reaper *DeploymentReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
deployments := reaper.Extensions().Deployments(namespace)
replicaSets := reaper.Extensions().ReplicaSets(namespace)
rsReaper, _ := ReaperFor(extensions.Kind("ReplicaSet"), reaper)
deployments := reaper.dClient.Deployments(namespace)
replicaSets := reaper.rsClient.ReplicaSets(namespace)
rsReaper := &ReplicaSetReaper{reaper.rsClient, reaper.pollInterval, reaper.timeout}
deployment, err := reaper.updateDeploymentWithRetries(namespace, name, func(d *extensions.Deployment) {
// set deployment's history and scale to 0
@@ -473,7 +469,7 @@ func (reaper *DeploymentReaper) Stop(namespace, name string, timeout time.Durati
type updateDeploymentFunc func(d *extensions.Deployment)
func (reaper *DeploymentReaper) updateDeploymentWithRetries(namespace, name string, applyUpdate updateDeploymentFunc) (deployment *extensions.Deployment, err error) {
deployments := reaper.Extensions().Deployments(namespace)
deployments := reaper.dClient.Deployments(namespace)
err = wait.Poll(10*time.Millisecond, 1*time.Minute, func() (bool, error) {
if deployment, err = deployments.Get(name); err != nil {
return false, err
@@ -493,7 +489,7 @@ func (reaper *DeploymentReaper) updateDeploymentWithRetries(namespace, name stri
}
func (reaper *PodReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
pods := reaper.Pods(namespace)
pods := reaper.client.Pods(namespace)
_, err := pods.Get(name)
if err != nil {
return err
@@ -502,10 +498,10 @@ func (reaper *PodReaper) Stop(namespace, name string, timeout time.Duration, gra
}
func (reaper *ServiceReaper) Stop(namespace, name string, timeout time.Duration, gracePeriod *api.DeleteOptions) error {
services := reaper.Services(namespace)
services := reaper.client.Services(namespace)
_, err := services.Get(name)
if err != nil {
return err
}
return services.Delete(name)
return services.Delete(name, nil)
}