Confirmed from gtstef/filebrowser's own Dockerfile (_docker/Dockerfile):
the image runs as a fixed non-root user (adduser -u 1000 filebrowser;
USER filebrowser), not root and not remappable via PUID/PGID. The
installer's broad `chown -R $ACTUAL_USER:$ACTUAL_USER "$FB_DIR"` left the
bind-mounted ./data owned by $ACTUAL_USER (root, on a box where the
installer itself runs as root) — UID 1000 inside the container then had no
write access to it, so every start failed with "could not open database:
open /home/filebrowser/data/database.db: permission denied" and the
container crash-looped indefinitely (restart: unless-stopped kept retrying
every ~60s, matching the log timestamps this was diagnosed from).
Re-chown ./data to 1000:1000 specifically, after the broad chown so it
isn't clobbered back to $ACTUAL_USER.
Claude
3a3833596c