added deployment files

.dockerignore

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+node_modules/
+dist/
+.git/
+.gitignore
+*.log
+.env*
+.vscode/
+.idea/
+k8s/
+README.md

Dockerfile

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+# ─── Stage 1: Build ──────────────────────────────────────────────────────────
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Install dependencies first (layer-cache friendly)
+COPY package.json package-lock.json ./
+RUN npm ci --frozen-lockfile
+
+# Copy source and build
+COPY . .
+RUN npm run build
+
+# ─── Stage 2: Serve ──────────────────────────────────────────────────────────
+FROM nginx:1.27-alpine AS runner
+
+# Remove default nginx content
+RUN rm -rf /usr/share/nginx/html/*
+
+# Copy built assets from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Copy custom nginx config (handles SPA routing)
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]

k8s/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ecommerce-web
+  namespace: ecommerce
+  labels:
+    app: ecommerce-web
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: ecommerce-web
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  template:
+    metadata:
+      labels:
+        app: ecommerce-web
+    spec:
+      containers:
+        - name: ecommerce-web
+          # Replace with your actual image name after pushing to a registry
+          # e.g., docker.io/<your-dockerhub-username>/ecommerce-web:latest
+          image: ecommerce-web:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 80
+              protocol: TCP
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "64Mi"
+            limits:
+              cpu: "250m"
+              memory: "128Mi"
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 80
+            initialDelaySeconds: 10
+            periodSeconds: 15
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /healthz
+              port: 80
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            failureThreshold: 3
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: false
+            runAsNonRoot: false
+      restartPolicy: Always

k8s/hpa.yaml

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+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: ecommerce-web
+  namespace: ecommerce
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: ecommerce-web
+  minReplicas: 2
+  maxReplicas: 8
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 70
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: 80

k8s/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: ecommerce-web
+  namespace: ecommerce
+  annotations:
+    # For nginx ingress controller
+    nginx.ingress.kubernetes.io/rewrite-target: /
+    # Uncomment below if using cert-manager for TLS
+    # cert-manager.io/cluster-issuer: letsencrypt-prod
+spec:
+  ingressClassName: nginx
+  rules:
+    - host: ecommerce.example.com   # Replace with your actual domain
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: ecommerce-web
+                port:
+                  number: 80
+  # Uncomment and configure for HTTPS/TLS
+  # tls:
+  #   - hosts:
+  #       - ecommerce.example.com
+  #     secretName: ecommerce-web-tls

k8s/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: ecommerce
+  labels:
+    app.kubernetes.io/name: ecommerce-web

k8s/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: ecommerce-web
+  namespace: ecommerce
+  labels:
+    app: ecommerce-web
+spec:
+  selector:
+    app: ecommerce-web
+  ports:
+    - name: http
+      protocol: TCP
+      port: 80
+      targetPort: 80
+  type: ClusterIP

nginx.conf

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+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Gzip compression
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+    gzip_min_length 1024;
+
+    # Cache static assets aggressively
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|avif|webp|woff|woff2|ttf|eot)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        try_files $uri =404;
+    }
+
+    # SPA fallback: send all unmatched routes to index.html
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Disable access logs for health probes (optional)
+    location /healthz {
+        access_log off;
+        return 200 "ok";
+        add_header Content-Type text/plain;
+    }
+}