Support Docker siblings in IKFast plugin script

[NoahR-ATC]

Description

Adds support for running the IKFast plugin creation script auto_create_ikfast_moveit_plugin.sh from within a Docker container.

The script uses Docker containers itself, and was attempting to share files with the spawned containers using bind mounts. If you create your main container with a bind mount to the Docker socket (/var/run/docker.sock) then you are able to create sibling containers from inside, and thus would expect the script to execute correctly. The problem is that bind mounts always refer to the host-machine's paths, so if you try to run the script from inside a Docker container the mounts do not resolve correctly.

I solved this by switching to explicit docker create and docker start commands, and used docker cp to copy files in and out, since docker cp supports being run from inside a container. This works in-place and does not require any changes to documentation or processes.

Checklist

• Required by CI: Code is auto formatted using clang-format
• Extend the tutorials / documentation reference
• Document API changes relevant to the user in the MIGRATION.md notes
• Create tests, which fail without this PR reference
• Include a screenshot if changing a GUI
• While waiting for someone to review your request, please help review another open pull request to support the maintainers

[rhaschke]

These changes look reasonable and the goal is highly valuable.
However, I'm not sure why the CI tests didn't run and I can't trigger them manually.
Anyway, I ported your changes to MoveIt1 and there, the CI test fails:
https://github.com/ubi-agni/moveit/actions/runs/16938495966/job/48000931886
Any ideas?

[NoahR-ATC]

Thanks for the investigation, I have applied your suggestions now and rebased in main. The CI tests are currently failing on my fork because of the same deprecation error a few other recent PRs have been getting (e.g. this run for #2994). Seems like #3562 is trying to address this.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (3e526af) to head (6226e12).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3517   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files        181     181           
  Lines      22649   22649           
  Branches    3108    3108           
=====================================
  Misses     22649   22649           

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[github-actions]

This PR is stale because it has been open for 45 days with no activity. Please tag a maintainer for help on completing this PR, or close it if you think it has become obsolete.