@ServiceGuards I added
resolver 127.0.0.11;
which seems to be Docker-specific, to http in NGINX config.
Now this error occurs:
2025/05/01 21:02:41 [error] 22#22: *1 connect() failed (111: Connection refused) while connecting to upstream, client: CLIENT_ADDRESS, server: SERVER_ADDRESS, request: "GET / HTTP/1.1", upstream: "http://172.18.0.4:8080/", host: "SERVER_ADDRESS"
CLIENT_ADDRESS - - [01/May/2025:21:02:41 +0000] "GET /favicon.ico HTTP/1.1" 499 0 "http://SERVER_ADDRESS/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0"