// NewNamespaceManager creates a new NamespaceManager
func NewNamespaceManager(kubeClient client.Interface, resyncPeriod time.Duration) *NamespaceManager {
_, controller := framework.NewInformer(
&cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return kubeClient.Namespaces().List(labels.Everything(), fields.Everything())
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return kubeClient.Namespaces().Watch(labels.Everything(), fields.Everything(), resourceVersion)
},
},
&api.Namespace{},
resyncPeriod,
framework.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
namespace := obj.(*api.Namespace)
syncNamespace(kubeClient, *namespace)
},
UpdateFunc: func(oldObj, newObj interface{}) {
namespace := newObj.(*api.Namespace)
syncNamespace(kubeClient, *namespace)
},
},
)
return &NamespaceManager{
controller: controller,
}
}
func NewFirstContainerReady(kclient kclient.Interface, timeout time.Duration, interval time.Duration) *FirstContainerReady {
return &FirstContainerReady{
timeout: timeout,
interval: interval,
podsForDeployment: func(deployment *kapi.ReplicationController) (*kapi.PodList, error) {
selector := labels.Set(deployment.Spec.Selector).AsSelector()
return kclient.Pods(deployment.Namespace).List(selector, fields.Everything())
},
getPodStore: func(namespace, name string) (cache.Store, chan struct{}) {
sel, _ := fields.ParseSelector("metadata.name=" + name)
store := cache.NewStore(cache.MetaNamespaceKeyFunc)
lw := &deployutil.ListWatcherImpl{
ListFunc: func() (runtime.Object, error) {
return kclient.Pods(namespace).List(labels.Everything(), sel)
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return kclient.Pods(namespace).Watch(labels.Everything(), sel, resourceVersion)
},
}
stop := make(chan struct{})
cache.NewReflector(lw, &kapi.Pod{}, store, 10*time.Second).RunUntil(stop)
return store, stop
},
}
}
// Update performs a rolling update of a collection of pods.
// 'name' points to a replication controller.
// 'client' is used for updating pods.
// 'updatePeriod' is the time between pod updates.
func Update(name string, client client.Interface, updatePeriod time.Duration) error {
controller, err := client.GetReplicationController(name)
if err != nil {
return err
}
s := labels.Set(controller.DesiredState.ReplicaSelector).AsSelector()
podList, err := client.ListPods(s)
if err != nil {
return err
}
expected := len(podList.Items)
if expected == 0 {
return nil
}
for _, pod := range podList.Items {
// We delete the pod here, the controller will recreate it. This will result in pulling
// a new Docker image. This isn't a full "update" but it's what we support for now.
err = client.DeletePod(pod.ID)
if err != nil {
return err
}
time.Sleep(updatePeriod)
}
return wait.Poll(time.Second*5, time.Second*300, func() (bool, error) {
podList, err := client.ListPods(s)
if err != nil {
return false, err
}
return len(podList.Items) == expected, nil
})
}
func RunProjectCache(c client.Interface, defaultNodeSelector string) {
if pcache != nil {
return
}
store := cache.NewStore(cache.MetaNamespaceKeyFunc)
reflector := cache.NewReflector(
&cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return c.Namespaces().List(labels.Everything(), fields.Everything())
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return c.Namespaces().Watch(labels.Everything(), fields.Everything(), resourceVersion)
},
},
&kapi.Namespace{},
store,
0,
)
reflector.Run()
pcache = &ProjectCache{
Client: c,
Store: store,
DefaultNodeSelector: defaultNodeSelector,
}
}
func GetApiVersions(w io.Writer, kubeClient client.Interface) {
apiVersions, err := kubeClient.ServerAPIVersions()
if err != nil {
fmt.Printf("Couldn't get available api versions from server: %v\n", err)
os.Exit(1)
}
fmt.Fprintf(w, "Available Server Api Versions: %#v\n", *apiVersions)
}
// DeleteController deletes a replication controller named 'name', requires that the controller
// already be stopped
func DeleteController(name string, client client.Interface) error {
controller, err := client.GetReplicationController(name)
if err != nil {
return err
}
if controller.DesiredState.Replicas != 0 {
return fmt.Errorf("controller has non-zero replicas (%d), please stop it first", controller.DesiredState.Replicas)
}
return client.DeleteReplicationController(name)
}
func GetVersion(w io.Writer, kubeClient client.Interface) {
serverVersion, err := kubeClient.ServerVersion()
if err != nil {
fmt.Printf("Couldn't read version from server: %v\n", err)
os.Exit(1)
}
GetClientVersion(w)
fmt.Fprintf(w, "Server Version: %#v\n", serverVersion)
}
func UpdateExistingReplicationController(c client.Interface, oldRc *api.ReplicationController, namespace, newName, deploymentKey, deploymentValue string, out io.Writer) (*api.ReplicationController, error) {
SetNextControllerAnnotation(oldRc, newName)
if _, found := oldRc.Spec.Selector[deploymentKey]; !found {
return AddDeploymentKeyToReplicationController(oldRc, c, 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.
return c.ReplicationControllers(namespace).Update(oldRc)
}
}
// DeleteController deletes a replication controller named 'name', requires that the controller
// already be stopped.
func DeleteController(ctx api.Context, name string, client client.Interface) error {
// TODO remove ctx in favor of just namespace string
controller, err := client.ReplicationControllers(api.Namespace(ctx)).Get(name)
if err != nil {
return err
}
if controller.Spec.Replicas != 0 {
return fmt.Errorf("controller has non-zero replicas (%d), please stop it first", controller.Spec.Replicas)
}
return client.ReplicationControllers(api.Namespace(ctx)).Delete(name)
}
func deletePersistentVolumeClaims(kubeClient client.Interface, ns string) error {
items, err := kubeClient.PersistentVolumeClaims(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := kubeClient.PersistentVolumeClaims(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteReplicationControllers(kubeClient client.Interface, ns string) error {
items, err := kubeClient.ReplicationControllers(ns).List(labels.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := kubeClient.ReplicationControllers(ns).Delete(items.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
func deleteResourceQuotas(kubeClient client.Interface, ns string) error {
resourceQuotas, err := kubeClient.ResourceQuotas(ns).List(labels.Everything())
if err != nil {
return err
}
for i := range resourceQuotas.Items {
err := kubeClient.ResourceQuotas(ns).Delete(resourceQuotas.Items[i].Name)
if err != nil {
return err
}
}
return nil
}
// NewResourceQuota creates a new resource quota admission control handler
func NewResourceQuota(client client.Interface) admission.Interface {
lw := &cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return client.ResourceQuotas(api.NamespaceAll).List(labels.Everything())
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return client.ResourceQuotas(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), resourceVersion)
},
}
indexer, reflector := cache.NewNamespaceKeyedIndexerAndReflector(lw, &api.ResourceQuota{}, 0)
reflector.Run()
return createResourceQuota(client, indexer)
}
// NewLimitRanger returns an object that enforces limits based on the supplied limit function
func NewLimitRanger(client client.Interface, limitFunc LimitFunc) admission.Interface {
lw := &cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return client.LimitRanges(api.NamespaceAll).List(labels.Everything())
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return client.LimitRanges(api.NamespaceAll).Watch(labels.Everything(), fields.Everything(), resourceVersion)
},
}
indexer, reflector := cache.NewNamespaceKeyedIndexerAndReflector(lw, &api.LimitRange{}, 0)
reflector.Run()
return &limitRanger{client: client, limitFunc: limitFunc, indexer: indexer}
}
func deleteSecrets(kubeClient client.Interface, ns string) error {
items, err := kubeClient.Secrets(ns).List(labels.Everything(), fields.Everything())
if err != nil {
return err
}
for i := range items.Items {
err := kubeClient.Secrets(ns).Delete(items.Items[i].Name)
if err != nil && !errors.IsNotFound(err) {
return err
}
}
return nil
}
// New returns a new service controller to keep cloud provider service resources
// (like external load balancers) in sync with the registry.
func New(cloud cloudprovider.Interface, kubeClient client.Interface, clusterName string) *ServiceController {
broadcaster := record.NewBroadcaster()
broadcaster.StartRecordingToSink(kubeClient.Events(""))
recorder := broadcaster.NewRecorder(api.EventSource{Component: "service-controller"})
return &ServiceController{
cloud: cloud,
kubeClient: kubeClient,
clusterName: clusterName,
cache: &serviceCache{serviceMap: make(map[string]*cachedService)},
eventBroadcaster: broadcaster,
eventRecorder: recorder,
}
}
// NewReplicationManager creates a new ReplicationManager.
func NewReplicationManager(kubeClient client.Interface) *ReplicationManager {
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
rm := &ReplicationManager{
kubeClient: kubeClient,
podControl: RealPodControl{
kubeClient: kubeClient,
recorder: eventBroadcaster.NewRecorder(api.EventSource{Component: "replication-controller"}),
},
}
rm.syncHandler = rm.syncReplicationController
return rm
}
// finalize will finalize the namespace for kubernetes
func finalize(kubeClient client.Interface, namespace api.Namespace) (*api.Namespace, error) {
namespaceFinalize := api.Namespace{}
namespaceFinalize.ObjectMeta = namespace.ObjectMeta
namespaceFinalize.Spec = namespace.Spec
finalizerSet := util.NewStringSet()
for i := range namespace.Spec.Finalizers {
if namespace.Spec.Finalizers[i] != api.FinalizerKubernetes {
finalizerSet.Insert(string(namespace.Spec.Finalizers[i]))
}
}
namespaceFinalize.Spec.Finalizers = make([]api.FinalizerName, 0, len(finalizerSet))
for _, value := range finalizerSet.List() {
namespaceFinalize.Spec.Finalizers = append(namespaceFinalize.Spec.Finalizers, api.FinalizerName(value))
}
return kubeClient.Namespaces().Finalize(&namespaceFinalize)
}
// RunController creates a new replication controller named 'name' which creates 'replicas' pods running 'image'.
func RunController(ctx api.Context, image, name string, replicas int, client client.Interface, portSpec string, servicePort int) error {
// TODO replace ctx with a namespace string
if servicePort > 0 && !util.IsDNSLabel(name) {
return fmt.Errorf("service creation requested, but an invalid name for a service was provided (%s). Service names must be valid DNS labels.", name)
}
ports, err := portsFromString(portSpec)
if err != nil {
return err
}
controller := &api.ReplicationController{
ObjectMeta: api.ObjectMeta{
Name: name,
},
Spec: api.ReplicationControllerSpec{
Replicas: replicas,
Selector: map[string]string{
"name": name,
},
Template: &api.PodTemplateSpec{
ObjectMeta: api.ObjectMeta{
Labels: map[string]string{
"name": name,
},
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: strings.ToLower(name),
Image: image,
Ports: ports,
},
},
},
},
},
}
controllerOut, err := client.ReplicationControllers(api.Namespace(ctx)).Create(controller)
if err != nil {
return err
}
data, err := yaml.Marshal(controllerOut)
if err != nil {
return err
}
fmt.Print(string(data))
if servicePort > 0 {
svc, err := createService(ctx, name, servicePort, client)
if err != nil {
return err
}
data, err = yaml.Marshal(svc)
if err != nil {
return err
}
fmt.Printf(string(data))
}
return nil
}
// ResizeController resizes a controller named 'name' by setting replicas to 'replicas'
func ResizeController(name string, replicas int, client client.Interface) error {
controller, err := client.GetReplicationController(name)
if err != nil {
return err
}
controller.DesiredState.Replicas = replicas
controllerOut, err := client.UpdateReplicationController(controller)
if err != nil {
return err
}
data, err := yaml.Marshal(controllerOut)
if err != nil {
return err
}
fmt.Print(string(data))
return nil
}
// NewProvision creates a new namespace provision admission control handler
func NewProvision(c client.Interface) admission.Interface {
store := cache.NewStore(cache.MetaNamespaceKeyFunc)
reflector := cache.NewReflector(
&cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return c.Namespaces().List(labels.Everything(), fields.Everything())
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return c.Namespaces().Watch(labels.Everything(), fields.Everything(), resourceVersion)
},
},
&api.Namespace{},
store,
0,
)
reflector.Run()
return createProvision(c, store)
}
// ResizeController resizes a controller named 'name' by setting replicas to 'replicas'.
func ResizeController(ctx api.Context, name string, replicas int, client client.Interface) error {
// TODO ctx is not needed, and should just be a namespace
controller, err := client.ReplicationControllers(api.Namespace(ctx)).Get(name)
if err != nil {
return err
}
controller.Spec.Replicas = replicas
controllerOut, err := client.ReplicationControllers(api.Namespace(ctx)).Update(controller)
if err != nil {
return err
}
data, err := yaml.Marshal(controllerOut)
if err != nil {
return err
}
fmt.Print(string(data))
return nil
}
// RunController creates a new replication controller named 'name' which creates 'replicas' pods running 'image'
func RunController(image, name string, replicas int, client client.Interface, portSpec string, servicePort int) error {
controller := api.ReplicationController{
JSONBase: api.JSONBase{
ID: name,
},
DesiredState: api.ReplicationControllerState{
Replicas: replicas,
ReplicaSelector: map[string]string{
"name": name,
},
PodTemplate: api.PodTemplate{
DesiredState: api.PodState{
Manifest: api.ContainerManifest{
Version: "v1beta2",
Containers: []api.Container{
{
Name: strings.ToLower(name),
Image: image,
Ports: makePorts(portSpec),
},
},
},
},
Labels: map[string]string{
"name": name,
},
},
},
Labels: map[string]string{
"name": name,
},
}
controllerOut, err := client.CreateReplicationController(controller)
if err != nil {
return err
}
data, err := yaml.Marshal(controllerOut)
if err != nil {
return err
}
fmt.Print(string(data))
if servicePort > 0 {
svc, err := createService(name, servicePort, client)
if err != nil {
return err
}
data, err = yaml.Marshal(svc)
if err != nil {
return err
}
fmt.Printf(string(data))
}
return nil
}
// RunController creates a new replication controller named 'name' which creates 'replicas' pods running 'image'.
func RunController(image, name string, replicas int, client client.Interface, portSpec string, servicePort int) error {
if servicePort > 0 && !util.IsDNSLabel(name) {
return fmt.Errorf("Service creation requested, but an invalid name for a service was provided (%s). Service names must be valid DNS labels.", name)
}
controller := &api.ReplicationController{
JSONBase: api.JSONBase{
ID: name,
},
DesiredState: api.ReplicationControllerState{
Replicas: replicas,
ReplicaSelector: map[string]string{
"replicationController": name,
},
PodTemplate: api.PodTemplate{
DesiredState: api.PodState{
Manifest: api.ContainerManifest{
Version: "v1beta2",
Containers: []api.Container{
{
Name: strings.ToLower(name),
Image: image,
Ports: portsFromString(portSpec),
},
},
},
},
Labels: map[string]string{
"replicationController": name,
},
},
},
}
controllerOut, err := client.CreateReplicationController(controller)
if err != nil {
return err
}
data, err := yaml.Marshal(controllerOut)
if err != nil {
return err
}
fmt.Print(string(data))
if servicePort > 0 {
svc, err := createService(name, servicePort, client)
if err != nil {
return err
}
data, err = yaml.Marshal(svc)
if err != nil {
return err
}
fmt.Printf(string(data))
}
return nil
}
// NewPodWatch creates a pod watching function which is backed by a
// FIFO/reflector pair. This avoids managing watches directly.
// A stop channel to close the watch's reflector is also returned.
// It is the caller's responsibility to defer closing the stop channel to prevent leaking resources.
func NewPodWatch(client kclient.Interface, namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
fieldSelector, _ := fields.ParseSelector("metadata.name=" + name)
podLW := &deployutil.ListWatcherImpl{
ListFunc: func() (runtime.Object, error) {
return client.Pods(namespace).List(labels.Everything(), fieldSelector)
},
WatchFunc: func(resourceVersion string) (watch.Interface, error) {
return client.Pods(namespace).Watch(labels.Everything(), fieldSelector, resourceVersion)
},
}
queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
cache.NewReflector(podLW, &kapi.Pod{}, queue, 1*time.Minute).RunUntil(stopChannel)
return func() *kapi.Pod {
obj := queue.Pop()
return obj.(*kapi.Pod)
}
}
// Update performs a rolling update of a collection of pods.
// 'name' points to a replication controller.
// 'client' is used for updating pods.
// 'updatePeriod' is the time between pod updates.
// 'imageName' is the new image to update for the template. This will work
// with the first container in the pod. There is no support yet for
// updating more complex replication controllers. If this is blank then no
// update of the image is performed.
func Update(ctx api.Context, name string, client client.Interface, updatePeriod time.Duration, imageName string) error {
// TODO ctx is not needed as input to this function, should just be 'namespace'
controller, err := client.ReplicationControllers(api.Namespace(ctx)).Get(name)
if err != nil {
return err
}
if len(imageName) != 0 {
controller.Spec.Template.Spec.Containers[0].Image = imageName
controller, err = client.ReplicationControllers(controller.Namespace).Update(controller)
if err != nil {
return err
}
}
s := labels.Set(controller.Spec.Selector).AsSelector()
podList, err := client.Pods(api.Namespace(ctx)).List(s)
if err != nil {
return err
}
expected := len(podList.Items)
if expected == 0 {
return nil
}
for _, pod := range podList.Items {
// We delete the pod here, the controller will recreate it. This will result in pulling
// a new Docker image. This isn't a full "update" but it's what we support for now.
err = client.Pods(pod.Namespace).Delete(pod.Name)
if err != nil {
return err
}
time.Sleep(updatePeriod)
}
return wait.Poll(time.Second*5, time.Second*300, func() (bool, error) {
podList, err := client.Pods(api.Namespace(ctx)).List(s)
if err != nil {
return false, err
}
return len(podList.Items) == expected, nil
})
}
// NewDeploymentConfigDescriber returns a new DeploymentConfigDescriber
func NewDeploymentConfigDescriber(client client.Interface, kclient kclient.Interface) *DeploymentConfigDescriber {
return &DeploymentConfigDescriber{
client: &genericDeploymentDescriberClient{
getDeploymentConfigFunc: func(namespace, name string) (*deployapi.DeploymentConfig, error) {
return client.DeploymentConfigs(namespace).Get(name)
},
getDeploymentFunc: func(namespace, name string) (*kapi.ReplicationController, error) {
return kclient.ReplicationControllers(namespace).Get(name)
},
listDeploymentsFunc: func(namespace string, selector labels.Selector) (*kapi.ReplicationControllerList, error) {
return kclient.ReplicationControllers(namespace).List(selector)
},
listPodsFunc: func(namespace string, selector labels.Selector) (*kapi.PodList, error) {
return kclient.Pods(namespace).List(selector, fields.Everything())
},
listEventsFunc: func(deploymentConfig *deployapi.DeploymentConfig) (*kapi.EventList, error) {
return kclient.Events(deploymentConfig.Namespace).Search(deploymentConfig)
},
},
}
}
// NewNodeController returns a new node controller to sync instances from cloudprovider.
func NewNodeController(
cloud cloudprovider.Interface,
matchRE string,
nodes []string,
staticResources *api.NodeResources,
kubeClient client.Interface,
registerRetryCount int,
podEvictionTimeout time.Duration,
deletingPodsRateLimiter util.RateLimiter,
nodeMonitorGracePeriod time.Duration,
nodeStartupGracePeriod time.Duration,
nodeMonitorPeriod time.Duration,
clusterName string) *NodeController {
eventBroadcaster := record.NewBroadcaster()
recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controllermanager"})
if kubeClient != nil {
glog.Infof("Sending events to api server.")
eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
} else {
glog.Infof("No api server defined - no events will be sent to API server.")
}
return &NodeController{
cloud: cloud,
matchRE: matchRE,
nodes: nodes,
staticResources: staticResources,
kubeClient: kubeClient,
recorder: recorder,
registerRetryCount: registerRetryCount,
podEvictionTimeout: podEvictionTimeout,
deletingPodsRateLimiter: deletingPodsRateLimiter,
nodeStatusMap: make(map[string]nodeStatusData),
nodeMonitorGracePeriod: nodeMonitorGracePeriod,
nodeMonitorPeriod: nodeMonitorPeriod,
nodeStartupGracePeriod: nodeStartupGracePeriod,
lookupIP: net.LookupIP,
now: util.Now,
clusterName: clusterName,
}
}
// NewNodeController returns a new node controller to sync instances from cloudprovider.
func NewNodeController(
cloud cloudprovider.Interface,
kubeClient client.Interface,
registerRetryCount int,
podEvictionTimeout time.Duration,
podEvictor *PodEvictor,
nodeMonitorGracePeriod time.Duration,
nodeStartupGracePeriod time.Duration,
nodeMonitorPeriod time.Duration,
clusterCIDR *net.IPNet,
allocateNodeCIDRs bool) *NodeController {
eventBroadcaster := record.NewBroadcaster()
recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controllermanager"})
eventBroadcaster.StartLogging(glog.Infof)
if kubeClient != nil {
glog.Infof("Sending events to api server.")
eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
} else {
glog.Infof("No api server defined - no events will be sent to API server.")
}
if allocateNodeCIDRs && clusterCIDR == nil {
glog.Fatal("NodeController: Must specify clusterCIDR if allocateNodeCIDRs == true.")
}
return &NodeController{
cloud: cloud,
kubeClient: kubeClient,
recorder: recorder,
registerRetryCount: registerRetryCount,
podEvictionTimeout: podEvictionTimeout,
podEvictor: podEvictor,
nodeStatusMap: make(map[string]nodeStatusData),
nodeMonitorGracePeriod: nodeMonitorGracePeriod,
nodeMonitorPeriod: nodeMonitorPeriod,
nodeStartupGracePeriod: nodeStartupGracePeriod,
lookupIP: net.LookupIP,
now: util.Now,
clusterCIDR: clusterCIDR,
allocateNodeCIDRs: allocateNodeCIDRs,
}
}
// finalizeInternal will update the namespace finalizer list to either have or not have origin finalizer
func finalizeInternal(kubeClient kclient.Interface, namespace *kapi.Namespace, withOrigin bool) (*kapi.Namespace, error) {
namespaceFinalize := kapi.Namespace{}
namespaceFinalize.ObjectMeta = namespace.ObjectMeta
namespaceFinalize.Spec = namespace.Spec
finalizerSet := util.NewStringSet()
for i := range namespace.Spec.Finalizers {
finalizerSet.Insert(string(namespace.Spec.Finalizers[i]))
}
if withOrigin {
finalizerSet.Insert(string(api.FinalizerOrigin))
} else {
finalizerSet.Delete(string(api.FinalizerOrigin))
}
namespaceFinalize.Spec.Finalizers = make([]kapi.FinalizerName, 0, len(finalizerSet))
for _, value := range finalizerSet.List() {
namespaceFinalize.Spec.Finalizers = append(namespaceFinalize.Spec.Finalizers, kapi.FinalizerName(value))
}
return kubeClient.Namespaces().Finalize(&namespaceFinalize)
}