k8s

05-backend.yaml

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+# Backend — Deployment + NodePort Service
+#
+# BEFORE APPLYING:
+#   Set the image to your built image, e.g.:
+#     youruser/ecommerce-backend:latest       (Docker Hub)
+#     registry.local:5000/ecommerce-backend:latest  (local registry)
+#
+# The init containers:
+#   1. wait-for-postgres  — polls until PostgreSQL is accepting connections
+#   2. run-migrations     — runs "prisma migrate deploy" once postgres is up
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ecommerce-app
+  namespace: ecommerce
+  labels:
+    app: ecommerce-app
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: ecommerce-app
+  template:
+    metadata:
+      labels:
+        app: ecommerce-app
+    spec:
+      initContainers:
+        # Waits until PostgreSQL is ready before running migrations
+        - name: wait-for-postgres
+          image: postgres:15-alpine
+          imagePullPolicy: IfNotPresent
+          command:
+            - sh
+            - -c
+            - |
+              until pg_isready -h postgres -p 5432 -U vaishnavi; do
+                echo "Waiting for PostgreSQL..."; sleep 3
+              done
+              echo "PostgreSQL is ready."
+
+        # Runs Prisma migrations — uses the same backend image
+        - name: run-migrations
+          image: ecommerce-backend:latest   # <-- same image as the main container
+          imagePullPolicy: IfNotPresent
+          command: ["sh", "-c", "npx prisma migrate deploy"]
+          envFrom:
+            - secretRef:
+                name: backend-secret
+          env:
+            - name: NODE_ENV
+              value: "production"
+
+      containers:
+        - name: ecommerce-app
+          image: ecommerce-backend:latest   # <-- replace with your registry image
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 3000
+              name: http
+          envFrom:
+            - configMapRef:
+                name: backend-config
+            - secretRef:
+                name: backend-secret
+          volumeMounts:
+            - name: uploads
+              mountPath: /app/uploads
+          resources:
+            requests:
+              cpu: "250m"
+              memory: "256Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 3000
+            initialDelaySeconds: 15
+            periodSeconds: 10
+            failureThreshold: 3
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: 3000
+            initialDelaySeconds: 30
+            periodSeconds: 20
+            failureThreshold: 3
+
+      volumes:
+        - name: uploads
+          emptyDir: {}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: ecommerce-app
+  namespace: ecommerce
+spec:
+  type: NodePort
+  selector:
+    app: ecommerce-app
+  ports:
+    - name: http
+      port: 3000
+      targetPort: 3000
+      nodePort: 30300    # Access via http://<NODE_IP>:30300