Docker Wordpress tar: <file> Cannot change ownership to uid 33, gid 33: Operation not permitted

The error is reported by tar command that try to change owner.

In order to avoid tar to set owner you can set variable TAR_OPTIONS to --no-same-owner
From tar manual:

--no-same-owner
Extract files as yourself (default for ordinary users).

You can add this in your docker-compose file with :

  TAR_OPTIONS: --no-same-owner