cmd/k8s-operator: remove configuration knob for Connector (#10791)

The configuration knob (that defaulted to Connector being disabled)
was added largely because the Connector CRD had to be installed in a separate step.
Now when the CRD has been added to both chart and static manifest, we can have it on by default.

Updates tailscale/tailscale#10878

Signed-off-by: Irbe Krumina <irbe@tailscale.com>

cmd/k8s-operator/deploy/chart/templates/deployment.yaml

@@ -59,8 +59,6 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: metadata.namespace
-            - name: ENABLE_CONNECTOR
-              value: "{{ .Values.enableConnector }}"
             - name: CLIENT_ID_FILE
               value: /oauth/client_id
             - name: CLIENT_SECRET_FILE

cmd/k8s-operator/deploy/chart/values.yaml

@@ -8,10 +8,6 @@ oauth: {}
   # clientId: ""
   # clientSecret: ""
 
-# enableConnector determines whether the operator should reconcile
-# connector.tailscale.com custom resources.
-enableConnector: "false"
-
 # installCRDs determines whether tailscale.com CRDs should be installed as part
 # of chart installation. We do not use Helm's CRD installation mechanism as that
 # does not allow for upgrading CRDs.

cmd/k8s-operator/deploy/manifests/operator.yaml

@@ -286,8 +286,6 @@ spec:
                       valueFrom:
                         fieldRef:
                             fieldPath: metadata.namespace
-                    - name: ENABLE_CONNECTOR
-                      value: "false"
                     - name: CLIENT_ID_FILE
                       value: /oauth/client_id
                     - name: CLIENT_SECRET_FILE

cmd/k8s-operator/operator.go

@@ -62,7 +62,6 @@ func main() {
 		priorityClassName = defaultEnv("PROXY_PRIORITY_CLASS_NAME", "")
 		tags              = defaultEnv("PROXY_TAGS", "tag:k8s")
 		tsFirewallMode    = defaultEnv("PROXY_FIREWALL_MODE", "")
-		tsEnableConnector = defaultBool("ENABLE_CONNECTOR", false)
 	)
 
 	var opts []kzap.Opts
@@ -93,7 +92,7 @@ func main() {
 	maybeLaunchAPIServerProxy(zlog, restConfig, s, mode)
 	// TODO (irbekrm): gather the reconciler options into an opts struct
 	// rather than passing a million of them in one by one.
-	runReconcilers(zlog, s, tsNamespace, restConfig, tsClient, image, priorityClassName, tags, tsFirewallMode, tsEnableConnector)
+	runReconcilers(zlog, s, tsNamespace, restConfig, tsClient, image, priorityClassName, tags, tsFirewallMode)
 }
 
 // initTSNet initializes the tsnet.Server and logs in to Tailscale. It uses the
@@ -201,7 +200,7 @@ waitOnline:
 
 // runReconcilers starts the controller-runtime manager and registers the
 // ServiceReconciler. It blocks forever.
-func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string, restConfig *rest.Config, tsClient *tailscale.Client, image, priorityClassName, tags, tsFirewallMode string, enableConnector bool) {
+func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string, restConfig *rest.Config, tsClient *tailscale.Client, image, priorityClassName, tags, tsFirewallMode string) {
 	var (
 		isDefaultLoadBalancer = defaultBool("OPERATOR_DEFAULT_LOAD_BALANCER", false)
 	)
@@ -222,9 +221,7 @@ func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string
 				&appsv1.StatefulSet{}: nsFilter,
 			},
 		},
-	}
+		Scheme: tsapi.GlobalScheme,
-	if enableConnector {
-		mgrOpts.Scheme = tsapi.GlobalScheme
 	}
 	mgr, err := manager.New(restConfig, mgrOpts)
 	if err != nil {
@@ -278,8 +275,7 @@ func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string
 		startlog.Fatalf("could not create controller: %v", err)
 	}
 
-	if enableConnector {
+	connectorFilter := handler.EnqueueRequestsFromMapFunc(managedResourceHandlerForType("connector"))
-		connectorFilter := handler.EnqueueRequestsFromMapFunc(managedResourceHandlerForType("subnetrouter"))
 	err = builder.ControllerManagedBy(mgr).
 		For(&tsapi.Connector{}).
 		Watches(&appsv1.StatefulSet{}, connectorFilter).
@@ -294,7 +290,6 @@ func runReconcilers(zlog *zap.SugaredLogger, s *tsnet.Server, tsNamespace string
 	if err != nil {
 		startlog.Fatal("could not create connector reconciler: %v", err)
 	}
-	}
 	startlog.Infof("Startup complete, operator running, version: %s", version.Long())
 	if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
 		startlog.Fatalf("could not start manager: %v", err)