/config is owned by the unprivileged runtime user after the ownership sweep, so root operations on files there could be redirected by a planted symlink.
- go2rtc HomeKit setup: replace the root yq/jq normalization and chown with an O_NOFOLLOW helper (prepare_homekit.py), so a symlink at go2rtc_homekit.yml can't redirect a root write or chown onto another file
- go2rtc binary override: ignore /config/go2rtc whenever the service runs as root, so a planted binary can't exec as root under FRIGATE_ROOT_SERVICES
- sweep sentinel: read and write it through safe-sentinel, which trusts only a root-owned regular file and never follows a symlink, so it can't be forged to skip the migration or symlinked to clobber a root file
- ownership sweep: chown with -execdir so a parent directory swapped for a symlink mid-walk can't redirect the chown out of the volume
- validate inputs: restrict DEVICE_ACL_PATHS to /dev, require nonzero numeric EXTRA_GROUPS, and reject PUID/PGID that collide with the go2rtc ids
- docs: correct the TLS key ownership note to match what actually happens
* Create frigate and go2rtc runtime users in the image
* Add single fix-ownership helper for volume permission migration
* Add init-usermod oneshot for PUID and PGID remapping
* Chown newly created runtime directories to the frigate user
* Run sentinel-guarded ownership sweep during prepare
* Add host-side volume permission migration script
* Guard log directory ownership for user-mode startup
* Fall back to plain s6-log when running without root
* Assert PUID remapping and sweep sentinel in CI smoke test
* Skip the ownership sweep in the devcontainer
* Pin FRIGATE_RUN_AS_ROOT in ownership tests
* Do not record the sweep as complete when a chown failed
* Validate PUID and PGID in the migration script
* Treat a failed ownership scan as an incomplete sweep
* Reject PUID and PGID of 0 during remapping
* Handle symlinks, dry runs, and sentinel write failures in the sweep
* Treat an absent sweep root as an incomplete sweep
Josh Hawkins