Files
Marc-André Bombeck 351e7d1fe0 fix(backup): keep a dump locally only where it survives the container
The image creates DB_BACKUP_DIR owned by the app user, so an install that
runs it without the backups volume could write there, and every nightly and
pre-migration dump landed in the container's own layer. The next update
threw them away while the admin page, the boot line and the readiness card
called them kept on this server.

A dump directory now counts as kept only when it survives the container:
inside a container (Docker, Podman, Kubernetes, a container cgroup or an
overlay root) the directory must sit on a mount of its own that is not a
tmpfs, read from /proc/self/mountinfo with a device-number fallback;
outside one, a writable directory is a disk. Otherwise no dump is written
there: the nightly run uploads off-host only and records not_persistent,
the pre-migration dump is skipped with a warning, the boot line says the
directory is inside the container, the backups page stops promising local
dumps and ignores local-only ledger rows, and readiness fails with no
bucket and notes the bucket-only setup otherwise.

The Unraid template gains a path for the dumps, the Unraid and TrueNAS
pages say why it is needed, and the restore drill first runs the stack
without the volume and checks that nothing is kept or claimed.
2026-10-25 16:00:34 +01:00

7.2 KiB

HealthLog on Unraid

HealthLog runs on Unraid in two ways. The Compose Manager path is the clean, self-contained install (app + database as one unit) and is recommended. The Community Applications (CA) template gives you the familiar one-app-at-a-time Unraid UI, but because CA templates describe a single container you install PostgreSQL separately and wire the two together.

HealthLog stores all persistent state in PostgreSQL. The app container keeps one more thing, its database dumps: every night, and before each update that brings migrations, it writes a whole-database dump to /var/lib/healthlog/backups (the offline geo-IP databases are either baked in at build time or mounted read-only; replaceable either way, not state). A backup of the database is a backup of everything, and those dumps are that backup, so that path needs a share of its own.

What you need

  • Unraid 6.12 or newer.
  • The image: ghcr.io/mbombeck/healthlog:latest (multi-arch, amd64 + arm64).
  • Three secrets, each generated with openssl rand -hex 32 (a 64-character hex string). On Unraid open the terminal (the >_ icon, top-right) and run the command three times:
    • POSTGRES_PASSWORD — the database password
    • ENCRYPTION_KEY — AES-256-GCM key for data at rest
    • API_TOKEN_HMAC_KEY — API token hashing key

Keep ENCRYPTION_KEY safe and backed up. If you lose it, the encrypted columns become unrecoverable.


This installs the app and its database together, exactly as the project's docker-compose.yml describes.

  1. Install Compose Manager from Community Applications (search "Compose Manager", by dcflachs).

  2. Settings → Docker → Compose Manager → Add New Stack, name it healthlog.

  3. Paste the project docker-compose.yml into the stack's compose file.

  4. Edit the stack's .env (the "Edit Stack → env" field) and set:

    POSTGRES_PASSWORD=<your openssl rand -hex 32>
    ENCRYPTION_KEY=<your openssl rand -hex 32>
    API_TOKEN_HMAC_KEY=<your openssl rand -hex 32>
    SESSION_COOKIE_SECURE=false
    NEXT_PUBLIC_APP_URL=http://tower:3000
    APP_URL=http://tower:3000
    

    Replace tower with your server's hostname or IP. SESSION_COOKIE_SECURE=false is required for plain-HTTP LAN access — see the note below.

  5. Compose Up. The app waits for PostgreSQL, runs database migrations on first boot, then starts serving.

  6. Open http://tower:3000. The first account you register becomes the admin.

Verify the running version:

curl -s http://tower:3000/api/version

Alternative: Community Applications template

Use this if you prefer the per-app Unraid UI. You install PostgreSQL yourself, then add HealthLog pointed at it.

Step 1 — install PostgreSQL

  1. In Apps (Community Applications), search for a PostgreSQL container (for example jj9987's postgresql). Install version 18; an existing 16 works too. Moving a 16 to 18 later is a dump and restore, see Moving to a newer Postgres major.
  2. Set:
    • POSTGRES_USER = healthlog
    • POSTGRES_PASSWORD = your generated password
    • POSTGRES_DB = healthlog
  3. Map the Postgres data path to a share on the array (e.g. /mnt/user/appdata/healthlog-db) so the database survives container updates.
  4. Note the container's IP (or container name if both run on the same custom Docker network).

Step 2 — add the HealthLog template

The template lives at docs/self-hosting/unraid/healthlog.xml. Add it via Docker → Add Container → Template and paste the raw URL, or copy it into /boot/config/plugins/dockerMan/templates-user/ and pick it from the template dropdown.

Fill in the fields:

Field Value
WebUI Port 3000
DATABASE_URL postgresql://healthlog:<password>@<postgres-host>:5432/healthlog?schema=public
ENCRYPTION_KEY your generated key
API_TOKEN_HMAC_KEY your generated key
SESSION_COOKIE_SECURE false for plain-HTTP LAN access
NEXT_PUBLIC_APP_URL http://tower:3000 (or your domain)
APP_URL same as NEXT_PUBLIC_APP_URL
Database dumps /mnt/user/appdata/healthlog/backups (the default)

Replace <password> and <postgres-host> with the values from Step 1. The dumps folder must be writable by the app's user, uid 1001; create it once from the terminal with mkdir -p /mnt/user/appdata/healthlog/backups && chown 1001:1001 /mnt/user/appdata/healthlog/backups. Apply, then open http://tower:3000 — the first registered user becomes the admin.

All account data is in the PostgreSQL container you installed in Step 1, and the nightly dumps of it land in the dumps folder. Without that path the dumps would sit inside the HealthLog container, which every update replaces, so HealthLog keeps none: the start log, the admin backups page and the recovery readiness card say so. Back up both.


The one setting that trips people up

SESSION_COOKIE_SECURE=false is required for plain-HTTP LAN installs (http://tower:3000). Left at its default, the session cookie carries the Secure flag, which the browser would drop over HTTP. The login page says so before anything is sent: "Signing in cannot complete on this page".

Set SESSION_COOKIE_SECURE=true (or leave it unset) only when a TLS reverse proxy serves HealthLog over HTTPS. In that case also point NEXT_PUBLIC_APP_URL and APP_URL at the public https:// URL.

Save the recovery kit

Copy ENCRYPTION_KEY, API_TOKEN_HMAC_KEY and, with off-host copies, BACKUP_ENCRYPTION_KEY from the template into your password manager, then confirm the recovery kit under Admin, Encryption (set HEALTHLOG_PLATFORM=unraid so the kit opens on the Unraid instructions). A reinstall with a new key over the old database makes the data unreadable; HealthLog then refuses to serve and says so. See Getting started.

Updates

Pin a release tag (ghcr.io/mbombeck/healthlog:vX.Y.Z) and bump deliberately, or track :latest and let Unraid's update check re-pull. Skim the CHANGELOG before upgrading, and back up the database first. Migrations are forward-only and run automatically on container start.

Health check

Both /api/health and /api/version respond without authentication. /api/health returns 200 when the database and background worker are up (503 otherwise) and is the container health probe baked into the image. /api/version returns the version, build SHA, and build timestamp for deploy verification.