feat(server): add readiness probe

Author: bramlak

kubernetes/deployment.yaml

@@ -37,4 +37,11 @@ spec:
             port: 8080
           initialDelaySeconds: 10
           periodSeconds: 10
+        
+        readinessProbe:
+          httpGet:
+            path: /readyz
+            port: 8080
+          initialDelay: 20
+          periodSeconds: 10
 

minikube-infra/deployment.tf

@@ -56,6 +56,15 @@ resource "kubernetes_deployment" "origoss_task_server" {
             initial_delay_seconds = 10
             period_seconds        = 10
           }
+
+          readiness_probe {
+            http_get {
+              path = "/readyz"
+              port = 8080
+            }
+            initial_delay_seconds = 20
+            period_seconds= 10
+          }
         }
       }
     }

server/main.go

@@ -20,6 +20,11 @@ func getHealth(w http.ResponseWriter, r *http.Request) {
 	log.Println("Health check requested")
 }
 
+func getReadiness(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusOK)
+	log.Println("Readiness check requested")
+}
+
 
 func loadPort() string {
     port := os.Getenv("PORT")
@@ -36,6 +41,7 @@ func main() {
 	var port string = loadPort();
 	http.HandleFunc("/", getRoot)
 	http.HandleFunc("/healthz", getHealth)
+	http.HandleFunc("/readyz", getReadiness)
 	http.Handle("/metrics", promhttp.Handler())
 	address := net.JoinHostPort("", port)
 	log.Println("Server is running on port", port)