!2 CRD status Reporter + CI Workflow Test

* Added CI workflow for Dockerized k8s Operator
* Added Readiness Listener based on StatefulSet.Status.ReadyReplicas
* Update Readiness Probing timeout mechanism

internal/controller/devcontainerapp_controller.go

@@ -86,6 +86,23 @@ func (r *DevcontainerAppReconciler) Reconcile(ctx context.Context, req ctrl.Requ
 			return ctrl.Result{}, err
 		}
 	} else {
+		// 若 StatefulSet.Status.readyReplicas 变化，则更新 DevcontainerApp.Status.Ready 域（mark/un-mark）
+		if statefulSetInNamespace.Status.ReadyReplicas > 0 {
+			app.Status.Ready = true
+			if err := r.Status().Update(ctx, app); err != nil {
+				logger.Error(err, "Failed to update DevcontainerApp.Status.Ready", "DevcontainerApp.Status.Ready", app.Status.Ready)
+				return ctrl.Result{}, err
+			}
+			logger.Info("DevContainer is now ready", "ReadyReplicas", statefulSetInNamespace.Status.ReadyReplicas)
+		} else {
+			app.Status.Ready = false
+			if err := r.Status().Update(ctx, app); err != nil {
+				logger.Error(err, "Failed to un-mark DevcontainerApp.Status.Ready", "DevcontainerApp.Status.Ready", app.Status.Ready)
+				return ctrl.Result{}, err
+			}
+			logger.Info("DevContainer is NOT ready", "ReadyReplicas", statefulSetInNamespace.Status.ReadyReplicas)
+		}
+
 		// 这里会反复触发更新
 		// 原因：在 SetupWithManager方法中，监听了 StatefulSet ，所以只要更新 StatefulSet 就会触发
 		//     此处更新和 controllerManager 更新 StatefulSet 都会触发更新事件，导致循环触发

internal/controller/templates/statefulset.yaml

@@ -51,6 +51,11 @@ spec:
               - /bin/sh
               - -c
               - exec cat /etc/ssh/ssh_host*.pub
+            failureThreshold: 6
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
           resources:
             limits:
               cpu: 300m