docker: add support for devices

[sprat]

This fixes #2307 by adding a "devices" setting in docker platform config. I also updated the documentation accordingly.

I tested my changes on a custom role and I successfully made a fuse mount with the following settings in my docker platform:

  - name: debian
    image: debian:latest
    #privileged: True
    devices:
      - /dev/fuse:/dev/fuse:rwm
    capabilities:
      - SYS_ADMIN
    security_opts:
      - apparmor=unconfined

PR Type

• Feature Pull Request

[decentral1se]

Thanks @sprat! You'll have to resolve the DCO issue to pass the PR tests.

• https://en.wikipedia.org/wiki/Developer_Certificate_of_Origin
• https://stackoverflow.com/questions/1962094/what-is-the-sign-off-feature-in-git-for

Also, there is a little bit more work for this one. You'll need to add tests. Please see #1889 for a similar change in which you can follow along what needs to be done. Hope that is clear.

[ssbarnea]

@sprat Please fix the DCO as I cannot bypass it.

[sprat]

No problem, I'll fix that when I come back to home.

[sprat]

The merge request should be ok. One job failed due to problem with apt install which has nothing to do with my merge request.

[decentral1se]

Restarted the CI build.

Also (from ^^^):

Also, there is a little bit more work for this one. You'll need to add tests. Please see #1889 for a similar change in which you can follow along what needs to be done. Hope that is clear.

no need to add tests yet, ours cover enough and we are not in the business of validating docker module itself.