error。
2023/09/18 20:24:12 [error] 166#166: *41 connect() failed (111: Connection refused) while connecting to upstream, client: 172.17.0.1, server: , request: "GET /api/server-info/ping HTTP/1.1", upstream: "http://127.0.0.1:3001/server-info/ping", host: "192.168.1.2:7003", referrer: "http://192.168.1.2:7003/photos"
2023/09/18 20:24:42 [error] 166#166: *41 connect() failed (111: Connection refused) while connecting to upstream, client: 172.17.0.1, server: , request: "GET /api/server-info/ping HTTP/1.1", upstream: "http://127.0.0.1:3001/server-info/ping", host: "192.168.1.2:7003", referrer: "http://192.168.1.2:7003/photos"
2023/09/18 20:24:42 [error] 166#166: *41 connect() failed (111: Connection refused) while connecting to upstream, client: 172.17.0.1, server: , request: "GET /api/server-info/ping HTTP/1.1", upstream: "http://127.0.0.1:3001/server-info/ping", host: "192.168.1.2:7003", referrer: "http://192.168.1.2:7003/photos"
