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https://github.com/k3s-io/kubernetes.git
synced 2025-07-24 04:06:03 +00:00
make all controllers obey the disable flags
This commit is contained in:
deads2k
parent
0fad9ce5e2
commit
8be9a216d4
@ -262,7 +262,19 @@ func IsControllerEnabled(name string, disabledByDefaultControllers sets.String,
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type InitFunc func(ctx ControllerContext) (bool, error)
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func KnownControllers() []string {
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return sets.StringKeySet(newControllerInitializers()).List()
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ret := sets.StringKeySet(newControllerInitializers())
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ret.Insert(
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saTokenControllerName,
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nodeControllerName,
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serviceControllerName,
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routeControllerName,
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pvBinderControllerName,
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attachDetatchControllerName,
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)
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// add "special" controllers that aren't initialized normally
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return ret.List()
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}
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var ControllersDisabledByDefault = sets.NewString(
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@ -335,12 +347,21 @@ func getAvailableResources(clientBuilder controller.ControllerClientBuilder) (ma
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return allResources, nil
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}
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const (
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saTokenControllerName = "serviceaccount-token"
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nodeControllerName = "node"
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serviceControllerName = "service"
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routeControllerName = "route"
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pvBinderControllerName = "persistentvolume-binder"
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attachDetatchControllerName = "attachdetach"
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)
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func StartControllers(controllers map[string]InitFunc, s *options.CMServer, rootClientBuilder, clientBuilder controller.ControllerClientBuilder, stop <-chan struct{}) error {
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versionedClient := rootClientBuilder.ClientOrDie("shared-informers")
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sharedInformers := informers.NewSharedInformerFactory(versionedClient, ResyncPeriod(s)())
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// always start the SA token controller first using a full-power client, since it needs to mint tokens for the rest
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if len(s.ServiceAccountKeyFile) > 0 {
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if len(s.ServiceAccountKeyFile) > 0 && IsControllerEnabled(saTokenControllerName, ControllersDisabledByDefault, s.Controllers...) {
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privateKey, err := serviceaccount.ReadPrivateKey(s.ServiceAccountKeyFile)
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if err != nil {
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return fmt.Errorf("error reading key for service account token controller: %v", err)
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@ -367,6 +388,9 @@ func StartControllers(controllers map[string]InitFunc, s *options.CMServer, root
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).Run(int(s.ConcurrentSATokenSyncs), stop)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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}
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} else {
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glog.Warningf("%q is disabled", saTokenControllerName)
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}
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availableResources, err := getAvailableResources(clientBuilder)
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@ -403,115 +427,140 @@ func StartControllers(controllers map[string]InitFunc, s *options.CMServer, root
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glog.Infof("Started %q", controllerName)
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}
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// all the remaning plugins want this cloud variable
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cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
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if err != nil {
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return fmt.Errorf("cloud provider could not be initialized: %v", err)
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}
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_, clusterCIDR, err := net.ParseCIDR(s.ClusterCIDR)
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if err != nil {
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glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err)
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}
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_, serviceCIDR, err := net.ParseCIDR(s.ServiceCIDR)
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if err != nil {
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glog.Warningf("Unsuccessful parsing of service CIDR %v: %v", s.ServiceCIDR, err)
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}
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nodeController, err := nodecontroller.NewNodeController(
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sharedInformers.Core().V1().Pods(),
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sharedInformers.Core().V1().Nodes(),
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sharedInformers.Extensions().V1beta1().DaemonSets(),
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cloud,
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clientBuilder.ClientOrDie("node-controller"),
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s.PodEvictionTimeout.Duration,
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s.NodeEvictionRate,
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s.SecondaryNodeEvictionRate,
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s.LargeClusterSizeThreshold,
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s.UnhealthyZoneThreshold,
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s.NodeMonitorGracePeriod.Duration,
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s.NodeStartupGracePeriod.Duration,
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s.NodeMonitorPeriod.Duration,
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clusterCIDR,
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serviceCIDR,
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int(s.NodeCIDRMaskSize),
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s.AllocateNodeCIDRs,
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s.EnableTaintManager,
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s.UseTaintBasedEvictions,
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)
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if err != nil {
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return fmt.Errorf("failed to initialize nodecontroller: %v", err)
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}
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nodeController.Run()
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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serviceController, err := servicecontroller.New(
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cloud,
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clientBuilder.ClientOrDie("service-controller"),
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sharedInformers.Core().V1().Services(),
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sharedInformers.Core().V1().Nodes(),
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s.ClusterName,
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)
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if err != nil {
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glog.Errorf("Failed to start service controller: %v", err)
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} else {
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go serviceController.Run(stop, int(s.ConcurrentServiceSyncs))
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}
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes {
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if cloud == nil {
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glog.Warning("configure-cloud-routes is set, but no cloud provider specified. Will not configure cloud provider routes.")
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} else if routes, ok := cloud.Routes(); !ok {
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glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")
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} else {
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routeController := routecontroller.New(routes, clientBuilder.ClientOrDie("route-controller"), sharedInformers.Core().V1().Nodes(), s.ClusterName, clusterCIDR)
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go routeController.Run(stop, s.RouteReconciliationPeriod.Duration)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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if ctx.IsControllerEnabled(nodeControllerName) {
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_, clusterCIDR, err := net.ParseCIDR(s.ClusterCIDR)
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if err != nil {
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glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err)
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}
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} else {
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glog.Infof("Will not configure cloud provider routes for allocate-node-cidrs: %v, configure-cloud-routes: %v.", s.AllocateNodeCIDRs, s.ConfigureCloudRoutes)
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}
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alphaProvisioner, err := NewAlphaVolumeProvisioner(cloud, s.VolumeConfiguration)
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if err != nil {
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return fmt.Errorf("an backward-compatible provisioner could not be created: %v, but one was expected. Provisioning will not work. This functionality is considered an early Alpha version.", err)
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}
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params := persistentvolumecontroller.ControllerParameters{
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KubeClient: clientBuilder.ClientOrDie("persistent-volume-binder"),
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SyncPeriod: s.PVClaimBinderSyncPeriod.Duration,
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AlphaProvisioner: alphaProvisioner,
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VolumePlugins: ProbeControllerVolumePlugins(cloud, s.VolumeConfiguration),
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Cloud: cloud,
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ClusterName: s.ClusterName,
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VolumeInformer: sharedInformers.Core().V1().PersistentVolumes(),
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ClaimInformer: sharedInformers.Core().V1().PersistentVolumeClaims(),
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ClassInformer: sharedInformers.Storage().V1beta1().StorageClasses(),
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EnableDynamicProvisioning: s.VolumeConfiguration.EnableDynamicProvisioning,
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}
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volumeController := persistentvolumecontroller.NewController(params)
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go volumeController.Run(stop)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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if s.ReconcilerSyncLoopPeriod.Duration < time.Second {
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return fmt.Errorf("Duration time must be greater than one second as set via command line option reconcile-sync-loop-period.")
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}
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attachDetachController, attachDetachControllerErr :=
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attachdetach.NewAttachDetachController(
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clientBuilder.ClientOrDie("attachdetach-controller"),
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_, serviceCIDR, err := net.ParseCIDR(s.ServiceCIDR)
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if err != nil {
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glog.Warningf("Unsuccessful parsing of service CIDR %v: %v", s.ServiceCIDR, err)
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}
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nodeController, err := nodecontroller.NewNodeController(
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sharedInformers.Core().V1().Pods(),
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sharedInformers.Core().V1().Nodes(),
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sharedInformers.Core().V1().PersistentVolumeClaims(),
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sharedInformers.Core().V1().PersistentVolumes(),
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sharedInformers.Extensions().V1beta1().DaemonSets(),
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cloud,
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ProbeAttachableVolumePlugins(s.VolumeConfiguration),
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s.DisableAttachDetachReconcilerSync,
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s.ReconcilerSyncLoopPeriod.Duration,
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clientBuilder.ClientOrDie("node-controller"),
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s.PodEvictionTimeout.Duration,
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s.NodeEvictionRate,
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s.SecondaryNodeEvictionRate,
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s.LargeClusterSizeThreshold,
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s.UnhealthyZoneThreshold,
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s.NodeMonitorGracePeriod.Duration,
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s.NodeStartupGracePeriod.Duration,
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s.NodeMonitorPeriod.Duration,
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clusterCIDR,
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serviceCIDR,
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int(s.NodeCIDRMaskSize),
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s.AllocateNodeCIDRs,
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s.EnableTaintManager,
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s.UseTaintBasedEvictions,
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)
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if attachDetachControllerErr != nil {
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return fmt.Errorf("failed to start attach/detach controller: %v", attachDetachControllerErr)
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if err != nil {
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return fmt.Errorf("failed to initialize nodecontroller: %v", err)
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}
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nodeController.Run()
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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} else {
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glog.Warningf("%q is disabled", nodeControllerName)
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}
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if ctx.IsControllerEnabled(serviceControllerName) {
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serviceController, err := servicecontroller.New(
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cloud,
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clientBuilder.ClientOrDie("service-controller"),
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sharedInformers.Core().V1().Services(),
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sharedInformers.Core().V1().Nodes(),
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s.ClusterName,
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)
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if err != nil {
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glog.Errorf("Failed to start service controller: %v", err)
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} else {
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go serviceController.Run(stop, int(s.ConcurrentServiceSyncs))
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}
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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} else {
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glog.Warningf("%q is disabled", serviceControllerName)
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}
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if ctx.IsControllerEnabled(routeControllerName) {
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_, clusterCIDR, err := net.ParseCIDR(s.ClusterCIDR)
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if err != nil {
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glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err)
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}
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if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes {
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if cloud == nil {
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glog.Warning("configure-cloud-routes is set, but no cloud provider specified. Will not configure cloud provider routes.")
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} else if routes, ok := cloud.Routes(); !ok {
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glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")
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} else {
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routeController := routecontroller.New(routes, clientBuilder.ClientOrDie("route-controller"), sharedInformers.Core().V1().Nodes(), s.ClusterName, clusterCIDR)
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go routeController.Run(stop, s.RouteReconciliationPeriod.Duration)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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}
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} else {
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glog.Infof("Will not configure cloud provider routes for allocate-node-cidrs: %v, configure-cloud-routes: %v.", s.AllocateNodeCIDRs, s.ConfigureCloudRoutes)
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}
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} else {
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glog.Warningf("%q is disabled", routeControllerName)
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}
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if ctx.IsControllerEnabled(pvBinderControllerName) {
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alphaProvisioner, err := NewAlphaVolumeProvisioner(cloud, s.VolumeConfiguration)
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if err != nil {
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return fmt.Errorf("an backward-compatible provisioner could not be created: %v, but one was expected. Provisioning will not work. This functionality is considered an early Alpha version.", err)
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}
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params := persistentvolumecontroller.ControllerParameters{
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KubeClient: clientBuilder.ClientOrDie("persistent-volume-binder"),
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SyncPeriod: s.PVClaimBinderSyncPeriod.Duration,
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AlphaProvisioner: alphaProvisioner,
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VolumePlugins: ProbeControllerVolumePlugins(cloud, s.VolumeConfiguration),
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Cloud: cloud,
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ClusterName: s.ClusterName,
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VolumeInformer: sharedInformers.Core().V1().PersistentVolumes(),
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ClaimInformer: sharedInformers.Core().V1().PersistentVolumeClaims(),
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ClassInformer: sharedInformers.Storage().V1beta1().StorageClasses(),
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EnableDynamicProvisioning: s.VolumeConfiguration.EnableDynamicProvisioning,
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}
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volumeController := persistentvolumecontroller.NewController(params)
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go volumeController.Run(stop)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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} else {
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glog.Warningf("%q is disabled", pvBinderControllerName)
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}
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if ctx.IsControllerEnabled(attachDetatchControllerName) {
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if s.ReconcilerSyncLoopPeriod.Duration < time.Second {
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return fmt.Errorf("Duration time must be greater than one second as set via command line option reconcile-sync-loop-period.")
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}
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attachDetachController, attachDetachControllerErr :=
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attachdetach.NewAttachDetachController(
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clientBuilder.ClientOrDie("attachdetach-controller"),
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sharedInformers.Core().V1().Pods(),
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sharedInformers.Core().V1().Nodes(),
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sharedInformers.Core().V1().PersistentVolumeClaims(),
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sharedInformers.Core().V1().PersistentVolumes(),
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cloud,
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ProbeAttachableVolumePlugins(s.VolumeConfiguration),
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s.DisableAttachDetachReconcilerSync,
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s.ReconcilerSyncLoopPeriod.Duration,
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)
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if attachDetachControllerErr != nil {
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return fmt.Errorf("failed to start attach/detach controller: %v", attachDetachControllerErr)
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}
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go attachDetachController.Run(stop)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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} else {
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glog.Warningf("%q is disabled", attachDetatchControllerName)
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}
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go attachDetachController.Run(stop)
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time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
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sharedInformers.Start(stop)
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