Failed to boot web

[aabdou]

I deployed my app successfully with Kamal 2.0 then when I tried again after adding bugsnag and postmark, web won't boot. I don't see any errors in the logs other than unable to proxy requests. Any idea what's going on? I have another app running on the same box and it works fine.

ERROR Failed to boot web on 165.232.147.161 INFO First web container is unhealthy on 165.232.147.161, not booting any other roles INFO [68677832] Running docker container ls --all --filter name=^$ --quiet | xargs docker logs --timestamps 2>&1 on 165.232.147.161 INFO [68677832] Finished in 3.196 seconds with exit status 0 (successful). ERROR 2024-12-16T21:53:34.168879730Z {"time":"2024-12-16T21:53:34.164638075Z","level":"INFO","msg":"Server started","http":":80"} 2024-12-16T21:53:35.202629336Z {"time":"2024-12-16T21:53:35.190661513Z","level":"INFO","msg":"Unable to proxy request","path":"/up","error":"dial tcp [::1]:3000: connect: connection refused"} 2024-12-16T21:53:35.202652533Z {"time":"2024-12-16T21:53:35.190806336Z","level":"INFO","msg":"Request","path":"/up","status":502,"dur":14,"method":"GET","req_content_length":0,"req_content_type":"","resp_content_length":0,"resp_content_type":"text/plain; charset=utf-8","remote_addr":"","user_agent":"Go-http-client/1.1","cache":"miss","query":""} 2024-12-16T21:53:36.175710583Z {"time":"2024-12-16T21:53:36.171351243Z","level":"INFO","msg":"Unable to proxy request","path":"/up","error":"dial tcp [::1]:3000: connect: connection refused"} 2024-12-16T21:53:36.176072875Z {"time":"2024-12-16T21:53:36.171566857Z","level":"INFO","msg":"Request","path":"/up","status":502,"dur":6,"method":"GET","req_content_length":0,"req_content_type":"","resp_content_length":0,"resp_content_type":"text/plain; charset=utf-8","remote_addr":"172.18.0.2:38644","user_agent":"Go-http-client/1.1","cache":"miss","query":""} 2024-12-16T21:53:36.864179839Z => Booting Puma 2024-12-16T21:53:36.866567214Z => Rails 8.0.0 application starting in production 2024-12-16T21:53:36.866578501Z => Run bin/rails server --helpfor more startup options 2024-12-16T21:53:37.204425323Z {"time":"2024-12-16T21:53:37.195169499Z","level":"INFO","msg":"Unable to proxy request","path":"/up","error":"dial tcp [::1]:3000: connect: connection refused"}

[aabdou]

just tried to deploy another app that I host on the machine, and it also failed. Both apps now fail to deploy with the same error above.

[aabdou]

does anyone know how to debug this?

[nickhammond]

@aabdou Can you share your Dockerfile? Are you exposing port 80 or 3000?

[aabdou]

Thanks @nickhammond I inspected the docker container and it failed because my server apparently ran out of memory. It had nothing to do with Kamal.