201 lines
7.1 KiB
Markdown
201 lines
7.1 KiB
Markdown
# truenas-truecloud-patch
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Extends TrueNAS SCALE's **TrueCloud Backup** feature to work with S3-compatible
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providers and native Backblaze B2, instead of Storj only.
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---
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## Why this exists
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In 2026, Storj raised the price of their TrueNAS-integrated storage tier from
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**$5/month to $50/month** — a 10× increase. For many home lab and small-office
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users, the TrueCloud Backup feature became unaffordable overnight.
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TrueCloud Backup is the only native TrueNAS mechanism that provides:
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- Integrated ZFS snapshot support before each backup
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- Restic-based incremental deduplication
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- Scheduled tasks with progress and log tracking in the UI
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- Dataset lock integration
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Running restic manually is possible but loses all of the above.
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This patch restores access to the TrueCloud Backup feature for users who
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need a provider other than Storj, with storage they already pay for or that
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costs a fraction of the new Storj price.
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---
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## ⚠ Disclaimer — please read before installing
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**This project is unofficial, unsupported, and not affiliated with iXsystems
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or the TrueNAS project in any way.**
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By installing this patch you accept the following:
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- **Unsupported configuration.** TrueNAS support staff are not obligated to
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help with any issue on a system running this patch. If you file a bug report,
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remove the patch first and reproduce the issue on an unmodified system.
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- **May break on TrueNAS updates.** The patch targets internal middleware APIs
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that are not part of any public contract. They can change at any time. When
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they do, the patch silently degrades to Storj-only behaviour rather than
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breaking TrueNAS — but you should check the log after each update.
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- **Your backups are your responsibility.** Verify that your backup jobs
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complete successfully and that restores work before relying on them for
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disaster recovery.
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- **No warranty.** This software is provided as-is. See the LICENSE file.
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If TrueNAS ever adds native support for additional providers in TrueCloud
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Backup, uninstall this patch immediately.
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---
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## What is actually patched
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**Nothing in TrueNAS's persistent database or configuration is modified.**
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The patch operates on two files that live in `/usr/` (which TrueNAS replaces
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on every update) and are therefore re-applied automatically on every boot.
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| Layer | What changes | Technique |
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|---|---|---|
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| **Backend** | `B2RcloneRemote` gains `get_restic_config()`. `restic.py` URL builder is fixed for providers with no hostname component (`b2:bucket/path` vs the broken `b2:/bucket/path`). | `sitecustomize.py` — Python's standard startup hook; no middleware files are modified on disk |
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| **UI** | The Angular bundle's `filterByProviders` binding is widened from `["STORJ_IX"]` to `["STORJ_IX","S3","B2"]` | In-place text replacement in the compiled JS bundle; original is backed up |
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Both changes are **fail-safe**: if a patch cannot be applied (e.g. TrueNAS
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restructured the relevant code), middlewared starts normally with Storj-only
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support and the reason is logged to `/data/truecloud-patch/apply.log`.
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## Supported providers after patching
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| Provider | Credential type in TrueNAS |
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|---|---|
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| Backblaze B2 (native B2 API) | `B2` |
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| AWS S3, Wasabi, Cloudflare R2, MinIO, and any S3-compatible endpoint | `S3` |
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| Storj (unchanged) | `STORJ_IX` |
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## How persistence works
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TrueNAS SCALE updates replace `/usr/` entirely. The patch survives by storing
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all scripts in `/data/truecloud-patch/` (a persistent ZFS dataset) and
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registering a **PREINIT initshutdownscript** in the TrueNAS database. This
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causes `apply.sh` to run on every boot before `middlewared` starts, placing
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`sitecustomize.py` in the correct site-packages directory and re-patching the
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UI bundle.
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## Python version compatibility
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`sitecustomize.py` uses the `find_spec` / `exec_module` import hook API
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(introduced in Python 3.4, required from Python 3.12 onwards). This covers:
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- TrueNAS SCALE 24.x — Debian 12, Python 3.11 ✓
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- TrueNAS SCALE 25.x — Debian 13, Python 3.12 ✓
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---
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## Install
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Run on your TrueNAS box as root, with the system fully booted:
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```bash
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git clone https://github.com/sudolulo/truenas-truecloud-patch.git
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cd truenas-truecloud-patch
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bash install.sh
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```
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Refresh your browser. S3 and B2 credentials now appear in the
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**Data Protection → TrueCloud Backup → Add** credential dropdown.
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## Creating a credential
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Before creating a backup task, add a credential in the TrueNAS UI:
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**Data Protection → TrueCloud Backup → Add → (create new credential)**
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Or use **Credentials → Backup Credentials → Cloud Credentials → Add** and
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select B2 or Amazon S3.
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For S3-compatible providers, select **Amazon S3**, then set a custom endpoint
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in the credential's advanced settings (e.g. `https://s3.wasabisys.com`).
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## Creating a task via CLI
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If the UI still shows only Storj after refreshing (e.g. the JS bundle pattern
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changed in a new TrueNAS version), create tasks directly via the REST API:
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```bash
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# List your cloud credentials to find the right ID
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python3 /data/truecloud-patch/create_task.py \
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--host 192.168.1.1 --api-key <key> list-credentials
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# Create a task with a B2 credential (id=3)
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python3 /data/truecloud-patch/create_task.py \
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--host 192.168.1.1 --api-key <key> create \
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--name "tank-to-b2" \
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--path /mnt/tank/data \
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--credential 3 \
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--bucket my-bucket \
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--folder backups/tank \
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--password "restic-repo-password" \
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--keep-last 14
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```
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Get an API key from **System → API Keys → Add**.
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---
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## Uninstall
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```bash
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bash /path/to/truenas-truecloud-patch/uninstall.sh
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```
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Removes the PREINIT hook, `sitecustomize.py`, and restores the original UI
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bundle from backup. The backend changes vanish on the next `middlewared`
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restart.
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---
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## After a TrueNAS update
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1. Check the log: `cat /data/truecloud-patch/apply.log | tail -30`
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2. If you see "WARNING: … pattern not found", the UI patch needs updating.
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[Open an issue](https://github.com/sudolulo/truenas-truecloud-patch/issues)
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with your TrueNAS version number.
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3. The backend patch (B2 support + URL fix) is more stable — check that a
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B2 backup job still completes successfully after any update.
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---
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## Troubleshooting
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**Apply log** (check after each reboot or install):
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```bash
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cat /data/truecloud-patch/apply.log
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```
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**Verify backend patch is loaded** (while middlewared is running):
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```bash
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python3 -c "
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from middlewared.rclone.remote.b2 import B2RcloneRemote
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print('B2 restic support:', hasattr(B2RcloneRemote, 'get_restic_config'))
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"
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```
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**Verify the UI patch** (should print your TrueNAS version):
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```bash
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grep -c 'STORJ_IX.*S3.*B2' \
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$(find /usr/share/truenas -name '*.js' 2>/dev/null) 2>/dev/null \
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| grep -v ':0'
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```
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**B2 backup fails with credential error**
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Confirm the credential type is exactly `B2` (not `S3` with a B2 endpoint).
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B2's native restic backend uses a different auth path than S3-compatible B2.
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**S3-compatible backup fails**
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S3 support already existed in the backend — the credential setup is the likely
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issue. Verify the endpoint URL, access key, secret key, and bucket name in
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the credential settings. Use `--insecure` in create_task.py only if you are
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using a self-signed certificate on your S3 endpoint.
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