Add healthcheck

compose.yml

@@ -36,9 +36,16 @@ services:
       - proxy
     depends_on:
       - db
+    healthcheck:
+      test: "nodejs -e \"http.get('http://localhost:3000', (res) => { console.log('status: ', res.statusCode); if (res.statusCode == 200) { process.exit(0); } else { process.exit(1); } });\""
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 1m
     deploy:
-      restart_policy:
-        condition: on-failure
+      update_config:
+        failure_action: rollback
+        order: start-first
       labels:
         - "traefik.enable=true"
         - "traefik.docker.network=proxy"