Docker Healthcheck

[modem7]

Creating an healthcheck where Docker can check that the application is healthy and up (maybe utilising supervisorctl or wget) would be beneficial for auto restarts in case something goes wrong.

[modem7]

An idea could be to have the healthcheck be:

["CMD-SHELL", "supervisorctl status || exit 1"] or similar

And add the following to supervisord.conf:

[unix_http_server]
file=/dev/shm/supervisor.sock
chmod=0700

[rpcinterface:supervisor]
supervisor.rpcinterface_factory=supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl=unix:///dev/shm/supervisor.sock

Happy to raise a PR if the feature is wanted.