feat(dc): move postgres to external db

docker-compose.yml

@@ -5,9 +5,6 @@ services:
       DATABASE_URL: postgresql://${DC_UMAMI_PG_USR:?}:${DC_UMAMI_PG_PASS:?}@${DC_UMAMI_PG_HOST:-db}:${DC_UMAMI_PG_PORT:-5432}/${DC_UMAMI_PG_DB:?}
       DATABASE_TYPE: postgresql
       APP_SECRET: ${DC_UMAMI_APP_SECRET:?}
-    depends_on:
-      db:
-        condition: service_healthy
     init: true
     restart: always
     healthcheck:
@@ -24,7 +21,6 @@ services:
       - "traefik.http.middlewares.umami-headers.headers.customrequestheaders.X-Real-IP={{.Request.RemoteAddr}}"
       - "traefik.http.routers.umami.middlewares=umami-headers@docker"
     networks:
-      - umami
       - traefik
     logging:
       driver: "json-file"
@@ -32,32 +28,6 @@ services:
         max-size: "100m"
         max-file: "3"
 
-  db:
-    image: postgres:17.5@sha256:6efd0df010dc3cb40d5e33e3ef84acecc5e73161bd3df06029ee8698e5e12c60
-    environment:
-      POSTGRES_DB: ${DC_UMAMI_PG_DB:?}
-      POSTGRES_USER: ${DC_UMAMI_PG_USR:?} 
-      POSTGRES_PASSWORD: ${DC_UMAMI_PG_PASS:?}
-    volumes:
-      - db-data:/var/lib/postgresql/data
-    restart: always
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
-      interval: 5s
-      timeout: 5s
-      retries: 5
-    networks:
-      - umami
-    logging:
-      driver: "json-file"
-      options:
-        max-size: "100m"
-        max-file: "3"
-
-volumes:
-  db-data:
-
 networks:
   traefik:
     external: true  # This connects to the external network used by Traefik
-  umami: