fix(k8s): correct port configuration for Next.js 3000 port

Fix 502 Bad Gateway error - application was configured to listen on port 80
but Dockerfile specifies port 3000 for Next.js.

Changes:
- Updated deployment.yml: containerPort 80 → 3000 (both prod & alpha)
- Updated service.yml: targetPort 80 → 3000 (both prod & alpha)
- Added image registry suffix: hosting-frontend → hosting-frontend-prod/alpha
- Added environment variable: NEXT_PUBLIC_API_URL
- Added health checks: livenessProbe and readinessProbe
- Added protocol: TCP explicit declaration

Benefits:
- Fixes 502 Bad Gateway errors from Cloudflare
- Proper port mapping: Ingress 80 → Service 80 → Pod 3000
- Health checks enable Kubernetes to detect pod issues
- Environment variables passed at deployment time

Deployment Flow:
  Client → Cloudflare → Ingress (traefik:80) → Service (port:80) → Pod (3000)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

deploy/k3s/alpha/frontend/deployment.yml

@@ -15,6 +15,21 @@ spec:
     spec:
       containers:
         - name: hosting-frontend
-          image: gitea.vidoks.fr/sortifal/hosting-frontend:latest
+          image: gitea.vidoks.fr/sortifal/hosting-frontend-alpha:latest
           ports:
-            - containerPort: 80
+            - containerPort: 3000
+          env:
+            - name: NEXT_PUBLIC_API_URL
+              value: "https://api.portfolio-host.com/api"
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 5
+            periodSeconds: 5

deploy/k3s/alpha/frontend/service.yml

@@ -8,5 +8,6 @@ spec:
     app: hosting-frontend
   ports:
     - port: 80
-      targetPort: 80
+      targetPort: 3000
+      protocol: TCP
   type: ClusterIP

deploy/k3s/prod/frontend/deployment.yml

@@ -15,9 +15,24 @@ spec:
     spec:
       containers:
         - name: hosting-frontend
-          image: gitea.vidoks.fr/sortifal/hosting-frontend:latest
+          image: gitea.vidoks.fr/sortifal/hosting-frontend-prod:latest
           ports:
-            - containerPort: 80
+            - containerPort: 3000
+          env:
+            - name: NEXT_PUBLIC_API_URL
+              value: "https://api.portfolio-host.com/api"
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 3000
+            initialDelaySeconds: 5
+            periodSeconds: 5
 
 
 

deploy/k3s/prod/frontend/service.yml

@@ -8,5 +8,6 @@ spec:
     app: hosting-frontend
   ports:
     - port: 80
-      targetPort: 80
+      targetPort: 3000
+      protocol: TCP
   type: ClusterIP