permissions issue with pgdata bind mount in postgres container on some host systems

[sgfost]

The postgres image sets up a user postgres with id 999 which owns /var/lib/postgresql/data/pgdata/docker/data https://github.com/docker-library/postgres/blob/master/12/bookworm/Dockerfile

On at least one linux system (mint without systemd i.e. no systemd-coredump user with id 999) the container gets tripped up on not having permission to chmod /var/lib/postgresql/data/pgdata

https://stackoverflow.com/a/66502465 works as a manual solution but will break when docker-compose.yml gets re-generated

related notes from the image docs: https://github.com/docker-library/docs/blob/master/postgres/README.md#arbitrary---user-notes