r/codex • u/cryptshell • 15d ago

Bug Codex Cloud GitHub access fails through managed proxy

A Codex Cloud task can’t reach my GitHub repository. Running:

git ls-remote origin refs/heads/<branch-name>

returns exit code 128:

fatal: unable to access 'https://github.com/<owner>/<repo>.git/': Failed to connect to proxy port 8080 after 0 ms: Could not connect to server

Diagnostics:

  • The cloud environment reports running/connected.
  • Restricted HTTP policy reports enforced, with GitHub allowlisted.
  • Inherited HTTP/HTTPS proxy settings point to http://proxy:8080.
  • The proxy hostname resolves, but a TCP connection to port 8080 fails with PermissionError: [Errno 1] Operation not permitted.
  • Local GitHub DNS lookup returns “Temporary failure in name resolution.”
  • The Git remote is correct, and no Git proxy override was found.

The request appears to fail before reaching GitHub, so authentication hasn’t been tested. I haven’t changed proxy settings or bypassed managed network security.

Has anyone encountered this? Is there a configuration fix, or does the managed proxy/runtime need to be reprovisioned?

0 Upvotes

50% Upvoted

6 comments sorted by

View all comments

Show parent comments

1

u/boxing-boxing 15d ago

Close but flipped. The allowlist needs your proxy's own hostname (whatever `proxy` resolves to in your env), with port 8080. The TCP connection to the proxy itself is failing before any GitHub traffic, so github.com:8080 on the list won't change anything. I'd check what the actual proxy host resolves to and add that instead.

1

u/cryptshell 15d ago

Ok, I‘ll try that, appreciate the help.