Add files for deployment of the webapp with Kubernetes

z2/deployment.yaml

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+# ─────────────────────────────────────────────────────────────────────────────
+# Deployment  –  Vert.x Backend (2 replicas)
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: vigimeteo-backend
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-backend
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: vigimeteo-backend
+  template:
+    metadata:
+      labels:
+        app: vigimeteo-backend
+    spec:
+      initContainers:
+        # Wait until PostgreSQL is ready before starting the backend
+        - name: wait-for-db
+          image: busybox:1.36
+          command:
+            - sh
+            - -c
+            - |
+              until nc -z vigimeteo-db.vigimeteo.svc.cluster.local 5432; do
+                echo "Waiting for PostgreSQL...";
+                sleep 3;
+              done;
+              echo "PostgreSQL is ready."
+      containers:
+        - name: vigimeteo-backend
+          image: vigimeteo-backend:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 8888
+              name: http
+          env:
+            - name: DB_HOST
+              value: "vigimeteo-db.vigimeteo.svc.cluster.local"
+            - name: DB_PORT
+              value: "5432"
+            - name: DB_NAME
+              value: "postgres"
+            - name: DB_USER
+              value: "postgres"
+            - name: DB_PASSWORD
+              value: "admin"
+

z2/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: vigimeteo
+  labels:
+    app: vigimeteo
+    environment: production

z2/service.yaml

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+# ─────────────────────────────────────────────────────────────────────────────
+# Deployment  –  React/Nginx Frontend (2 replicas)
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: vigimeteo-frontend
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-frontend
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: vigimeteo-frontend
+  template:
+    metadata:
+      labels:
+        app: vigimeteo-frontend
+    spec:
+      containers:
+        - name: vigimeteo-frontend
+          image: vigimeteo-frontend:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 80
+              name: http
+          ### part bellow recommanded by ia for health check
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 10
+            periodSeconds: 15
+          resources:
+            requests:
+              cpu: "50m"
+              memory: "64Mi"
+            limits:
+              cpu: "200m"
+              memory: "128Mi"
+
+---
+# ─────────────────────────────────────────────────────────────────────────────
+# Service  –  Backend ClusterIP (internal access only)
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: v1
+kind: Service
+metadata:
+  name: vigimeteo-backend-service
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-backend
+spec:
+  type: NodePort
+  selector:
+    app: vigimeteo-backend
+  ports:
+    - name: http
+      protocol: TCP
+      port: 8888
+      targetPort: 8888
+      nodePort: 30888
+
+---
+# ─────────────────────────────────────────────────────────────────────────────
+# Service  –  Frontend NodePort (external access via <nodeIP>:30500)
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: v1
+kind: Service
+metadata:
+  name: vigimeteo-frontend-service
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-frontend
+spec:
+  type: NodePort
+  selector:
+    app: vigimeteo-frontend
+  ports:
+    - name: http
+      protocol: TCP
+      port: 80
+      targetPort: 80
+      nodePort: 30500

z2/statefulset.yaml

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+# ─────────────────────────────────────────────────────────────────────────────
+# PersistentVolume  –  host-path volume for PostgreSQL data
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: vigimeteo-db-pv
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-db
+spec:
+  capacity:
+    storage: 1Gi
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: manual
+  hostPath:
+    path: /home/cytech/vigimeteo-db-data
+
+---
+# ─────────────────────────────────────────────────────────────────────────────
+# PersistentVolumeClaim  –  claimed by the StatefulSet below
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: vigimeteo-db-pvc
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-db
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: manual
+  resources:
+    requests:
+      storage: 1Gi
+
+---
+# ─────────────────────────────────────────────────────────────────────────────
+# StatefulSet  –  single PostgreSQL replica
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: vigimeteo-db
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-db
+spec:
+  serviceName: vigimeteo-db
+  replicas: 1
+  selector:
+    matchLabels:
+      app: vigimeteo-db
+  template:
+    metadata:
+      labels:
+        app: vigimeteo-db
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:17-alpine
+          ports:
+            - containerPort: 5432
+              name: postgres
+          env:
+            - name: POSTGRES_USER
+              value: "postgres"
+            - name: POSTGRES_PASSWORD
+              value: "admin"
+            - name: POSTGRES_DB
+              value: "postgres"
+          volumeMounts:
+            - name: vigimeteo-db-storage
+              mountPath: /var/lib/postgresql/data
+            - name: vigimeteo-db-init
+              mountPath: /docker-entrypoint-initdb.d
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", "postgres"]
+            initialDelaySeconds: 10
+            periodSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["pg_isready", "-U", "postgres"]
+            initialDelaySeconds: 30
+            periodSeconds: 10
+      volumes:
+        - name: vigimeteo-db-storage
+          persistentVolumeClaim:
+            claimName: vigimeteo-db-pvc
+        - name: vigimeteo-db-init
+          configMap:
+            name: vigimeteo-db-init
+
+---
+# ─────────────────────────────────────────────────────────────────────────────
+# Headless Service  –  required by the StatefulSet
+# ─────────────────────────────────────────────────────────────────────────────
+apiVersion: v1
+kind: Service
+metadata:
+  name: vigimeteo-db
+  namespace: vigimeteo
+  labels:
+    app: vigimeteo-db
+spec:
+  clusterIP: None           # headless – stable DNS name for StatefulSet pods
+  selector:
+    app: vigimeteo-db
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: 5432