feat(staging): add Traefik-based staging with automatic subdomains

docker-compose.staging.yml

@@ -1,28 +1,29 @@
+# Staging Docker Compose - Traefik version
 version: "3.8"
 
 services:
-  frontend:
-    container_name: staging-gravl-PLACEHOLDER-frontend
-    networks:
-      - staging-network
+  gravl-frontend:
+    container_name: staging-gravl-frontend-BRANCH_NAME
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.staging-gravl-BRANCH_NAME.rule=Host(`BRANCH_NAME.gravl.homelab.local`)
+      - traefik.http.routers.staging-gravl-BRANCH_NAME.entrypoints=websecure
+      - traefik.http.routers.staging-gravl-BRANCH_NAME.tls=true
+      - traefik.http.services.staging-gravl-BRANCH_NAME.loadbalancer.server.port=80
     environment:
-      - VITE_API_URL=http://localhost:3001
-      
-  backend:
-    container_name: staging-gravl-PLACEHOLDER-backend
-    networks:
-      - staging-network
-    environment:
-      - NODE_ENV=staging
-      - PORT=3001
-      - CORS_ORIGIN=http://localhost:5173
-    
-  db:
-    container_name: staging-gravl-PLACEHOLDER-db
-    image: postgres:15-alpine
-    networks:
-      - staging-network
+      - VITE_API_URL=https://BRANCH_NAME.api.gravl.homelab.local
+
+  gravl-backend:
+    container_name: staging-gravl-backend-BRANCH_NAME
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.staging-gravl-BRANCH_NAME-api.rule=Host(`BRANCH_NAME.api.gravl.homelab.local`)
+      - traefik.http.routers.staging-gravl-BRANCH_NAME-api.entrypoints=websecure
+      - traefik.http.routers.staging-gravl-BRANCH_NAME-api.tls=true
+      - traefik.http.services.staging-gravl-BRANCH_NAME-api.loadbalancer.server.port=3001
 
 networks:
-  staging-network:
-    driver: bridge
+  proxy:
+    external: true
+  homelab:
+    external: true