truenas-truecloud-patch/CHANGELOG.md

Changelog

v0.0.4 — 2026-07-06

Fixed

• Backend patch inactive after every reboot. PREINIT initshutdownscripts are executed by middlewared itself (ix-preinit.service runs midclt call initshutdownscript.execute_init_tasks PREINIT, ordered after ix-zfs.service pool import). By the time apply.sh patched b2.py and restic.py in the overlay, the running middlewared had already imported the stock modules and never re-imports — so S3/B2 support silently reverted on every reboot until something restarted middlewared. install.sh masked the bug because it restarts middlewared explicitly.

  Fix: when apply.sh detects it was invoked by middlewared (boot context), it now schedules a single detached restart via a transient systemd unit (truecloud-mw-restart, ordered after multi-user.target and ix-postinit.service) so the patched modules are loaded once boot settles. The restart is never synchronous — apply.sh is a child of middlewared's own job runner, and later ix-* boot units still need midclt. Manual runs of apply.sh never trigger a restart.

• TypeError: string indices must be integers when creating a B2 task on TrueNAS 24.10 (Electric Eel) (#1). The credential schema differs between releases: on 24.10 credentials["provider"] is the type string ("B2") with the account/key in credentials["attributes"], while 25.04+ moved them into a provider dict. The injected get_restic_config only handled the 25.04+ shape. It now detects the schema and reads the credentials from the right place on both; create_task.py list-credentials and list-tasks got the same treatment.

• create_task.py verify false-positive after reboot. verify trusted hook_status.json, which only records that the files were patched on disk — not that the running process loaded them. verify now also compares the middlewared main-process start time against patched_at and reports FAIL (with recovery instructions) when the process predates the patch.

Changed

• README and script comments no longer claim PREINIT runs "before middlewared starts"; the boot ordering and the deferred restart are now documented.
• recover.sh and uninstall.sh cancel a still-queued deferred restart before performing their own, and their re-enable instructions now include the required systemctl restart middlewared.

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v0.0.3 — 2026-06-22

Fixed

• patch/apply.sh silently killed by the 10-second PREINIT timeout. TrueNAS PREINIT initshutdownscripts have a 10-second default timeout. The previous apply.sh ran approximately 8 Python subprocesses (each ~1-2 s), so it was routinely killed mid-run. Symptoms: patches not applied after reboot, but re-running bash apply.sh manually (no timeout) always succeeded.

  Fix: install.sh now registers the hook with "timeout": 120. Existing installations are updated to the new timeout on the next bash install.sh run.

  Additionally, patch/apply.sh consolidates its Python subprocess invocations from ~8 down to 2, reducing startup overhead from ~12-16 s to ~2-4 s — well within the new 120-second budget.

Changed

• find_mw_python in apply.sh no longer spawns a separate Python process to verify the interpreter can import middlewared. Verification is now implicit in the combined path-discovery subprocess that follows.

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v0.0.2 — 2026-06-19

Fixed

• B2 backup failing with NotImplementedError after a TrueNAS update. The patch block's guard (if "get_restic_config" not in B2RcloneRemote.__dict__) could misfire and silently skip injecting the method — most likely when a TrueNAS version adds a stub that raises NotImplementedError, causing the dict check to return False. The guard is removed; the assignment is now unconditional. This is safe because the native-support kill switch already prevents patching when TrueNAS ships a real, working implementation.

• Native-support check falsely triggering kill switch on stubs. The check now inspects the source of any pre-existing get_restic_config before concluding that TrueNAS has shipped native B2 support. If the method body contains NotImplementedError it is treated as a stub and patching continues; only a method that does not raise NotImplementedError triggers the kill switch and auto-disable.

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v0.0.1 — 2026-06-16

Initial public release. Extends TrueNAS SCALE's TrueCloud Backup feature to work with S3-compatible providers and native Backblaze B2 in addition to Storj, using volatile overlayfs patching of the TrueNAS middleware that persists across system updates via a PREINIT initshutdownscript.

Included

• install.sh — registers the PREINIT boot hook and applies patches immediately
• patch/apply.sh — PREINIT script; mounts writable overlays, patches b2.py and restic.py, patches the Angular UI bundle to widen the credential dropdown
• patch/create_task.py — CLI to create TrueCloud Backup tasks with S3 or B2 credentials, bypassing the Storj-only restriction in the UI
• recover.sh — emergency recovery; sets the kill switch and restarts middlewared
• uninstall.sh — full removal of the patch and PREINIT hook
• Kill switch support (disabled file) for safe degradation
• Auto-disable when TrueNAS ships native B2 restic support
• hook_status.json written on each boot for create_task.py verify