First real end-to-end auto-update on a live install failed like this:
Automatically updating trivy (a recovery snapshot is taken first)
Snapshotting trivy before update…
Pulling new image(s) for …
Update of failed — rolling back…
Could not roll back automatically
The app name went empty after the snapshot. Cause: bash is dynamically
scoped, so a callee assigning an undeclared variable writes the CALLER's
local of that name — and a `while read app` loop leaves it EMPTY at EOF.
webuiBackupAppStatus's dashboard generator runs at the end of every backup
and did exactly that to updaterApplyApp's `app`.
Nothing was damaged: the pull ran against an empty name, failed before
touching the image, and the rollback was a no-op on a nonexistent app.
Fixed both ends. The generator (and three gluetun loops with the same
latent leak) now declare `local app`. updaterApplyApp/updaterRollbackApp
hold the name in `_upd_app` so they no longer depend on every callee's
hygiene, and updaterApplyAll stops leaking its own loop var.
This is exactly the untested path the roadmap flagged: "apply/revert not
yet exercised end-to-end on a live install with a pending update."
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Replace the central app-name if-ladder in app_update_specifics.sh with a generic
dispatcher: each app ships containers/<app>/scripts/<app>_update_specifics.sh
defining appUpdateSpecifics_<app> (live-sourced by the container scan, dispatched
by `declare -F` — same pattern as tools). A hook may set shouldrestart=true. Apps
with no specifics ship no hook.
- Move the adguard/pihole (DNS updater), dashy (conf refresh), focalboard (nobody
ownership + restart), and libreportal (webui regen) branches to per-app hooks.
- Move scripts/gluetun/gluetun_route_apps.sh -> containers/gluetun/scripts/
(scripts/gluetun/ removed).
- Move scripts/install/install_crowdsec.sh -> containers/crowdsec/scripts/
crowdsec_install_host.sh; fix the path note in crowdsec.sh.
- Regenerate arrays (moved files drop out; the per-app files are container-scanned,
not arrayed).
Dispatch verified with stubs: adguard/pihole/dashy/focalboard/libreportal behave
identically to the old ladder (incl. shouldrestart propagation), apps without a
hook are a clean no-op. The CLI itself had no per-app branches — app-specific CLI
is already the (now fully modular) tools system.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
