Updates to dockerfile for rootless container

[bplein]

Branched from dev.

Updated dockerfile to run as user "repeater". Also does the pip install as the lower privilege user, not root.

[bplein]

tested fully with radio on RasberryPi OS Lite 64bit, builds on amd64 as well (but not tested with a radio)

[rightup]

sorry @bplein I just merged @yellowcooln PR and it broke yours mind fixing?

[yellowcooln]

I rebased this locally against current dev and verified the rootless Docker changes can work, but the branch needs to be updated before it will merge cleanly.

There are two changes that still need to be carried over:

1. Rebase or merge current dev into rootless_docker to resolve the Dockerfile conflict.
2. Keep the rootless-user setup, and also add the user-local bin path to PATH so console scripts installed into ~/.local/bin are available inside the container.

I put a working version of the fix on my fork here:

Branch

https://github.com/yellowcooln/pyMC_Repeater/blob/pr-248-on-upstream-dev/dockerfile

Commits

• Rootless container update:
  yellowcooln@44d2259

• PATH fix for rootless install:
  yellowcooln@e2ebc58

Required Dockerfile Adjustment

ENV PATH=/home/${USER}/.local/bin:${PATH}

Without this, console scripts installed during the rootless pip install may not be available on the container PATH.

Docker Image

working image can be found here

yellowcooln/pymc-repeater:dev