Drop the healthcheck controller (#32)

After gardener/gardener#7462 gardenlet performs a health check for all ManagedResources (without the ones with class `seed`) in the Shoot control plane. The registry-cache extension deploys only a single ManagedResource and needs to report health checks for it. We no longer need to have a health check controller to do this. We can rely that gardenlet will health check the ManagedResource deployed by the extension.

charts/gardener-extension-registry-cache/templates/deployment.yaml

@@ -44,7 +44,6 @@ spec:
         args:
         - --config=/etc/registry-cache/config.yaml
         - --max-concurrent-reconciles={{ .Values.controllers.concurrentSyncs }}
-        - --healthcheck-max-concurrent-reconciles={{ .Values.controllers.healthcheck.concurrentSyncs }}
         - --heartbeat-namespace={{ .Release.Namespace }} 
         - --heartbeat-renew-interval-seconds={{ .Values.controllers.heartbeat.renewIntervalSeconds }} 
         - --disable-controllers={{ .Values.disableControllers | join "," }}

charts/gardener-extension-registry-cache/values.yaml

@@ -28,8 +28,6 @@ vpa:
 controllers:
   concurrentSyncs: 5
   ignoreOperationAnnotation: false
-  healthcheck:
-    concurrentSyncs: 5
   heartbeat: 
     renewIntervalSeconds: 30 
 

charts/registration/templates/controller-registration.yaml

@@ -5,7 +5,7 @@ metadata:
   name: extension-registry-cache
 type: helm
 providerConfig:
-  chart: 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05pTebpwKZ12e1qU5Ea+0331LtxoAG3hi23LMg656wv45jUBDx1C4crD73lcK0Ls4qpB4T7riIodQk8d7l928t9DB21kWaU0g2cVt09UPqLXO9BF+dnhTrt7KKeAmnSLdrqkcOAOcl3XsuoXBjz0629i0iw7Vyqu9Qouq1PTnvVURwLKHeWd6mIgTArxytAd4x1yxXv0xIvCzB9Fc1PparilFtld95XbAfHliuepLVcdlNl/I1fVQAMNNNBAAw000EADDTTQQAMNNNBAAw000EADDTTQwBbwP7yfd9UAeAAA
+  chart: 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
   values:
 {{ toYaml .Values.values | indent 4 }}
 

cmd/gardener-extension-registry-cache/app/app.go

@@ -29,7 +29,6 @@ import (
 
 	registryinstall "github.com/gardener/gardener-extension-registry-cache/pkg/apis/registry/install"
 	"github.com/gardener/gardener-extension-registry-cache/pkg/controller"
-	"github.com/gardener/gardener-extension-registry-cache/pkg/controller/healthcheck"
 )
 
 // NewServiceControllerCommand creates a new command that is used to start the registry service controller.
@@ -87,10 +86,8 @@ func (o *Options) run(ctx context.Context) error {
 	}
 
 	ctrlConfig := o.registryOptions.Completed()
-	ctrlConfig.ApplyHealthCheckConfig(&healthcheck.DefaultAddOptions.HealthCheckConfig)
 	ctrlConfig.Apply(&controller.DefaultAddOptions.Config)
 	o.controllerOptions.Completed().Apply(&controller.DefaultAddOptions.ControllerOptions)
-	o.healthOptions.Completed().Apply(&healthcheck.DefaultAddOptions.Controller)
 	o.reconcileOptions.Completed().Apply(&controller.DefaultAddOptions.IgnoreOperationAnnotation)
 	o.heartbeatOptions.Completed().Apply(&heartbeat.DefaultAddOptions)
 

cmd/gardener-extension-registry-cache/app/options.go

@@ -35,7 +35,6 @@ type Options struct {
 	restOptions        *controllercmd.RESTOptions
 	managerOptions     *controllercmd.ManagerOptions
 	controllerOptions  *controllercmd.ControllerOptions
-	healthOptions      *controllercmd.ControllerOptions
 	heartbeatOptions   *heartbeatcmd.Options
 	controllerSwitches *controllercmd.SwitchOptions
 	reconcileOptions   *controllercmd.ReconcilerOptions
@@ -74,10 +73,6 @@ func NewOptions() *Options {
 			// This is a default value.
 			MaxConcurrentReconciles: 5,
 		},
-		healthOptions: &controllercmd.ControllerOptions{
-			// This is a default value.
-			MaxConcurrentReconciles: 5,
-		},
 		heartbeatOptions: &heartbeatcmd.Options{
 			// This is a default value.
 			ExtensionName:        ExtensionName,
@@ -95,7 +90,6 @@ func NewOptions() *Options {
 		options.managerOptions,
 		options.controllerOptions,
 		options.registryOptions,
-		controllercmd.PrefixOption("healthcheck-", options.healthOptions),
 		controllercmd.PrefixOption("heartbeat-", options.heartbeatOptions),
 		options.controllerSwitches,
 		options.reconcileOptions,