Proposed change

As described in #4996, Docker 25+ changes made sub-mounts of the /dev filesystem to be mounted read-only. Revert to the previous behavior by adjusting the ReadOnlyNonRecursive option. Cleaner way would be to upstream support for setting this option via Mount class arguments, so this change is meant to be rather a hotfix for the issue. Even better approach would be mounting /dev non-recursively, and taking care of creating all necessary filesystems when creating containers in Supervisor.

This change was also tested on HAOS 12.0 with Docker 24.0.7 - it just ignores the extra option without any fuss in logs.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to the supervisor)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Container submounts in /dev are read-only with Docker 25+ #4996
• This PR is related to issue: HA Supervisor Failed setup: troubles with Docker 25 upgrade. Supervisor unable to start #4827
• Link to documentation pull request:
• Link to cli pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Ruff (ruff format supervisor tests)
• Tests have been added to verify that the new code works.

If API endpoints of add-on configuration are added/changed:

• Documentation added/updated for developers.home-assistant.io