feat: add liveness probe on scheduler extender

Signed-off-by: wenqing.he <[email protected]>

charts/hami/templates/scheduler/deployment.yaml

@@ -92,6 +92,13 @@ spec:
           volumeMounts:
             - name: tls-config
               mountPath: /tls
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 443
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 3
       volumes:
         - name: tls-config
           secret:

cmd/scheduler/main.go

@@ -80,6 +80,7 @@ func start() {
 	router.POST("/filter", routes.PredicateRoute(sher))
 	router.POST("/bind", routes.Bind(sher))
 	router.POST("/webhook", routes.WebHookRoute())
+	router.GET("/healthz", routes.HealthzRoute())
 	klog.Info("listen on ", config.HTTPBind)
 	if len(tlsCertFile) == 0 || len(tlsKeyFile) == 0 {
 		if err := http.ListenAndServe(config.HTTPBind, router); err != nil {

pkg/scheduler/routes/route.go

@@ -132,3 +132,9 @@ func WebHookRoute() httprouter.Handle {
 		h.ServeHTTP(w, r)
 	}
 }
+
+func HealthzRoute() httprouter.Handle {
+	return func(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+		w.WriteHeader(http.StatusOK)
+	}
+}