'recommended' opcache generates warnings

[jmarucha]

System

Image ID: 1e6634eeb3b3 (cuurrently "latest" tag) App version: Nextcloud 24.0.1 DB: mariadb

Issue

The current image contains

# cat /usr/local/etc/php/conf.d/opcache-recommended.ini
...
opcache.interned_strings_buffer=16
...

The current version of Nextcloud produce following warning

• The PHP OPcache module is not properly configured. See the documentation ↗ for more information.
  • The OPcache interned strings buffer is nearly full. To assure that repeating strings can be effectively cached, it is recommended to apply opcache.interned_strings_buffer to your PHP configuration with a value higher than 16.

I guess the thing is pretty self-explanatory but:

Steps to reproduce

Install and run the container. No heavy uploading was done.

W/A

Bind /usr/local/etc/php/conf.d/opcache-recommended.ini to a local file system. Configure opcache for a bigger bufer.

[SimJoSt]

This is also discussed in https://github.com/nextcloud/docker/issues/1758

[J0WI]

duplicate of #1758