AH00480: apr_thread_create: unable to create worker thread using docker image 8.0 only

[Sigagnon]

I have an issue when using camptocamp/docker-mapserver:8.0 on an older docker engine. I don't have this problem when I use camptocamp/docker-mapserver:7.6 image.

It may be related to exceeding resources. Could you help me finding what a could change in apache parameters to solve this issue?

This is the trace log I have after ./start-server initiate apache2.

Trace log

[Wed May 24 20:16:53.708222 2023] [env:warn] [pid 1:tid 139647199184768] AH01506: PassEnv variable _ was undefined
[Wed May 24 20:16:53.711641 2023] [env:warn] [pid 1:tid 139647199184768] AH01506: PassEnv variable _ was undefined
 [notice] [pid 1] AH00489: Apache/2.4.52 (Ubuntu) mod_fcgid/2.3.9 configured -- resuming normal operations
 [notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
 [alert] [pid 14] AH00480: apr_thread_create: unable to create worker thread
 [alert] [pid 15] AH00480: apr_thread_create: unable to create worker thread
 [alert] [pid 1] AH02324: A resource shortage or other unrecoverable failure was encountered before any child process initialized successfully... httpd is exiting!