Add Readiness and Liveness Probes to All Deployments

README.md

@@ -148,7 +148,7 @@ kubectl get pods -n microforge-dev-ns
 
 ### **Authentication Service (Go - Port 8082)**
 ```http
-GET  /api/health              # Health check
+GET  /api/auth/health         # Health check
 POST /api/validate            # JWT token validation
 GET  /api/verify/:token       # Token verification
 GET  /api/protected/profile   # Protected user profile
@@ -164,7 +164,7 @@ GET  /api/users               # User management
 
 ### **Metadata Service (Python - Port 8084)**
 ```http
-GET  /api/health              # Health check
+GET  /api/metadata/health     # Health check
 GET  /api/metadata/instance   # System instance metadata
 GET  /api/metadata/deployment # Deployment information
 POST /api/stress/start        # Performance stress testing

manifests/kubernetes/auth-service.yaml

@@ -29,6 +29,12 @@ metadata:
   labels:
     app: auth-service
 spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0
   selector:
     matchLabels:
       app: auth-service
@@ -42,6 +48,20 @@ spec:
           image: manojmdocker14/microforge-auth-service:v1.1.0
           ports:
             - containerPort: 8082
+          livenessProbe:
+            httpGet:
+              path: /api/auth/health
+              port: 8082
+            initialDelaySeconds: 45
+            periodSeconds: 20
+            timeoutSeconds: 10        
+          readinessProbe:
+            httpGet:
+              path: /api/auth/health
+              port: 8082
+            initialDelaySeconds: 15
+            periodSeconds: 10
+            timeoutSeconds: 5
           envFrom:
             - configMapRef:
                 name: auth-service-config

manifests/kubernetes/login-mysql.yaml

@@ -30,6 +30,11 @@ metadata:
     app: login-mysql
 spec:
   replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0
   selector:
     matchLabels:
       app: login-mysql
@@ -43,6 +48,32 @@ spec:
           image: manojmdocker14/microforge-users-mysql:v1.0.0
           ports:
             - containerPort: 3306
+          startupProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}"
+            failureThreshold: 30
+            periodSeconds: 10
+            timeoutSeconds: 5
+          livenessProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}" 
+            periodSeconds: 20
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysql -u root -p${MYSQL_ROOT_PASSWORD} -e 'SELECT 1;'"
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 5
           envFrom:
             - configMapRef:
                 name: login-mysql-config

manifests/kubernetes/login-service.yaml

@@ -15,6 +15,8 @@ kind: Service
 metadata:
   name: login-service
   namespace: microforge-dev-ns
+  labels:
+    app: login-service
 spec:
   selector:
     app:  login-service
@@ -33,6 +35,11 @@ metadata:
     app: login-service
 spec:
   replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0
   selector:
     matchLabels:
       app: login-service
@@ -46,6 +53,20 @@ spec:
           image: manojmdocker14/microforge-login-service:v1.2.0
           ports:
             - containerPort: 8081
+          livenessProbe:
+            httpGet:
+              path: /actuator/health 
+              port: 8081
+            initialDelaySeconds: 70
+            periodSeconds: 20
+            timeoutSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /actuator/health 
+              port: 8081
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            timeoutSeconds: 5
           env:
             - name: DB_HOST
               value: login-mysql

manifests/kubernetes/metadata-service.yaml

@@ -30,6 +30,12 @@ metadata:
   labels:
     app: metadata-service
 spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0
   selector:
     matchLabels:
       app: metadata-service
@@ -43,6 +49,20 @@ spec:
           image: manojmdocker14/microforge-metadata-service:v1.1.0
           ports:
             - containerPort: 8084
+          readinessProbe:
+            httpGet:
+              path: /api/metadata/health
+              port: 8084
+            initialDelaySeconds: 45
+            periodSeconds: 20
+            timeoutSeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /api/metadata/health
+              port: 8084
+            initialDelaySeconds: 45
+            periodSeconds: 10
+            timeoutSeconds: 5
           envFrom:
             - configMapRef:
                 name: metadata-service-config

manifests/kubernetes/notification-mysql.yaml

@@ -30,6 +30,11 @@ metadata:
     app: notification-mysql
 spec:
   replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0  
   selector:
     matchLabels:
       app: notification-mysql
@@ -43,6 +48,32 @@ spec:
           image: manojmdocker14/microforge-notifications-mysql:v1.0.0
           ports:
             - containerPort: 3306
+          startupProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysqladmin ping -u root -p$MYSQL_ROOT_PASSWORD"
+            initialDelaySeconds: 15  # Wait 15s before starting the first check
+            periodSeconds: 10        # Check every 10s
+            failureThreshold: 30     # Allow 30 failures (Total 5 minutes of boot time)
+          livenessProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysqladmin ping -u root -p$MYSQL_ROOT_PASSWORD"
+            periodSeconds: 20
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+                - bash
+                - "-c"
+                - "mysql -u root -p$MYSQL_ROOT_PASSWORD -e 'SELECT 1;'"
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 10
           envFrom:
             - configMapRef:
                 name: notification-mysql-config

manifests/kubernetes/notification-service.yaml

@@ -32,6 +32,11 @@ metadata:
     app: notification-service
 spec:
   replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1        
+      maxUnavailable: 0
   selector:
     matchLabels:
       app: notification-service
@@ -45,6 +50,20 @@ spec:
           image: manojmdocker14/microforge-notification-service:v1.1.0
           ports:
             - containerPort: 8083
+          livenessProbe:
+            httpGet:
+              path: /actuator/health
+              port: 8083
+            initialDelaySeconds: 45 # Increased for DB connection setup
+            periodSeconds: 20
+            timeoutSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /actuator/health
+              port: 8083
+            initialDelaySeconds: 20
+            periodSeconds: 10
+            timeoutSeconds: 5
           env:
             - name: MYSQL_HOST
               value: notification-mysql