The docker-compose `./backup:/backup` mount was the only bind mount
not included in wait-for-db.sh's startup chown step. On a fresh
install (or any time the mount point is recreated), it stays
owned by root, and the nodejs (UID 1001) process running the
backup service gets EACCES when trying to mkdir under /backup.
Added /backup to both the chown list (root branch) and the
writable-check list (compose `user:` override branch), each guarded
by `[ -d /backup ]` so installs that don't use the bind mount —
native deployments, k8s with a different backup destination, etc. —
still boot cleanly.
Existing installs hit by this need a one-time host-side
sudo chown -R 1001:1001 <host-mount-for-/backup>
because the on-disk ownership won't fix itself; the script only
chowns at startup, and the directory was already created with
the wrong ownership by Docker's mount-point auto-creation. From
this commit onward, fresh installs are correct from the first
boot.
Luca
3ab3756a56