App platform supervisor error

Hello, I have a Dockerfile where I have configured a supervisor for workers, but after deploying the application my workers did not start taking tasks from SQS. I already checked the runtime logs section and this log keeps repeating Unlinking stale socket /var/run/supervisor.sock. I did check var/run directory and there no one supervisor.sock file only supervisor.sock.9. I don’t know how to fix it, everything was working fine yesterday. I didn’t make any changes to my “Dockerfile”. I would appreciate your help, thank you.

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Bobby Iliev
Site Moderator
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April 21, 2024
Accepted Answer

Hi there,

Would you mind sharing your Dockerfile here if possible so I could take a quick look and see if I can identify what might be causing the problem.

One thing that you could try out is to add a command in your Dockerfile to remove the stale socket before starting the supervisor:

RUN rm -f /var/run/supervisor.sock
CMD ["supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]

That way the stale socket file is removed each time the container starts, preventing the error from occurring.



I had the same problem so I contacted DO support and they helped me:

It seems like something in supervisord’s management HTTP server is incompatible with updated versions of gVisor security isolation runtime we use. We’ve found a minimal reproducer and are working with the gVisor team to get the issue fixed. In the meantime, you can likely work around this by disabling the unix_http_server configuration in their supervisors.conf.

Had the same issue, but my builds started working again randomly last night. I guess something was fixed as I haven’t made any changes.

EDIT: No never mind, it still doesn’t work.

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