Test Deploy - ExApp failed to register

[AndreaFiocchi]

Describe the bug

I'm running on-premise Nextcloud 30.0.2 instance on Ubuntu/Apache2

I've deployed the hardened docker daemon according to instructions. When i hit "Verify Connection" everything runs fine.
www-data is in the docker group, the container is started with --privileged

The "Test Deploy" fails with: ExApp failed to register, check the NC logs

Here part of the nextcloud.log file, i have plenty of POST request and two DELETE, all failing due to ExApp "test-deploy" not found

{"reqId":"tZcr9KqUT1bJwGOt3ou5","level":0,"time":"2024-11-13T15:20:05+00:00","remoteAddr":"xx.xx.105.95","user":"andreafiocchi","app":"app_api","method":"POST","url":"/apps/app_api/daemons/docker_socket_proxy/test_deploy","message":"ExApp \"test-deploy\" not found.","userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36","version":"30.0.2.2","data":{"app":"app_api"}}
{"reqId":"LmGOSxrODgZeyJ28A7vo","level":0,"time":"2024-11-13T15:20:05+00:00","remoteAddr":"xx.xx.105.95","user":"andreafiocchi","app":"app_api","method":"DELETE","url":"/apps/app_api/daemons/docker_socket_proxy/test_deploy","message":"ExApp \"test-deploy\" not found.","userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36","version":"30.0.2.2","data":{"app":"app_api"}}

Additionally, I can't find "External Apps" anywhere

ADDITIONAL INFO:
I've tried to install test-deploy and test_deploy with occ: not found.

I've then tried to install context_chat_backed and it seems to be "working"

sudo -u www-data php --define apc.enable_cli=1 /var/www/nextcloud/occ app_api:app:list -vvv
ExApps:
context_chat_backend (Context Chat Backend): 3.1.0 [disabled]

However, i get one of these every 10 attemps unstill i (successfully) removed it via occ.

{"reqId":"CCizUlL7K4q62mgpfr7L","level":2,"time":"2024-11-13T15:59:16+00:00","remoteAddr":"","user":"--","app":"app_api","method":"","url":"--","message":"Failed heartbeat on http://context_chat_backend:23000 for 10 times. Most recent status=0, error: cURL error 6: Could not resolve host: context_chat_backend (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://context_chat_backend:23000/heartbeat","userAgent":"--","version":"30.0.2.2","data":{"app":"app_api"}}

Steps/Code to Reproduce

Wish i knew.

Expected Results

Test Deploy successful, External App store available.

Actual Results

Neither of the above

Setup configuration

Nextcloud 30.0.2 Hub9
Ubuntu 23.04
Apache2