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TREK/wiki/Install-Docker.md
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Maurice 44c92052a3 docs(wiki): bring the pages in line with 4.3.0
Every page was read against the code on dev. What changed:

- Pages that described 4.2 behaviour: satellite view on the vector maps,
  the mobile journal timeline, Collab with its fifth tab, the Review badge,
  clustered pins on the share page, the Leaflet preset list, the strict
  guard on fe80::/10, the invite link tools and their scopes, the Public
  API scope rules, the permission count in the plugin SDK.
- Features of this release that no page mentioned: videos in a journal
  entry, receipts on an expense, the Google transit backend, routing
  counters, the rating on a place, the navigation menu, car stops, the
  manual school holiday catalogue and its MCP tools, the Dawarich panel in
  the Atlas, the release notes modal, plugin frames going fullscreen, the
  corridor call into the search provider hook.
- Statements that sent an admin the wrong way: DEFAULT_LANGUAGE is not in
  the Helm ConfigMap, env.PORT cannot be changed on the chart alone, the
  rotation script does not cover the document sync credentials, event
  handlers cannot broadcast, there is no per user MFA reset in the admin
  panel, the demo user can edit, an unparsable APP_URL stops the server.
- Updating gets a section for 4.3.0: the TREK Places API as the new
  default, the new variables, the Overpass timeout, SSO sessions on an
  OIDC only instance, the migration that puts booked nights on the drive.
2026-09-20 12:11:41 +02:00

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Markdown

# Install: Docker
Single-container Docker run — suitable for testing or simple personal installs.
## Run Command
```bash
docker run -d \
--name trek \
-p 3000:3000 \
-v ./data:/app/data \
-v ./uploads:/app/uploads \
-e ENCRYPTION_KEY=<your-32-byte-hex-key> \
--restart unless-stopped \
mauriceboe/trek:latest
```
`ENCRYPTION_KEY` is strongly recommended but not strictly required. If omitted, a key is auto-generated on first start and persisted to `data/.encryption_key`. Setting it explicitly means you can recreate the container from scratch (e.g. on a new host) without losing access to stored encrypted data (API keys, SMTP credentials, OIDC secrets, MFA secrets).
Generate an encryption key with:
```bash
openssl rand -hex 32
```
### Common optional variables
Pass additional `-e` flags for timezone and CORS/email link support:
```bash
-e TZ=Europe/Berlin \
-e ALLOWED_ORIGINS=https://trek.example.com \
```
See [Environment-Variables](Environment-Variables) for the full list.
## Image Tags
| Tag | Example | Behavior |
|---|--------------------------|---|
| `latest` | `mauriceboe/trek:latest` | Always the newest release across all major versions |
| Major version | `mauriceboe/trek:4` | Latest release pinned to that major version |
| Full version | `mauriceboe/trek:4.0.0` | Exact release; never changes |
Replace `mauriceboe/trek:latest` in the run command with your chosen tag to pin to a major version or exact release.
## Volume Reference
| Volume | Container path | What lives there |
|---|---|---|
| `./data` | `/app/data` | `travel.db` (SQLite database), `logs/trek.log`, `.jwt_secret`, `.encryption_key` |
| `./uploads` | `/app/uploads` | Uploaded files (photos, documents, covers, avatars) |
Both volumes must survive container replacement — they are your persistent state. Never remove them before pulling a new image.
### Named Volumes
The run command above uses bind mounts (`./data`, `./uploads`). You can use Docker named volumes instead, which are fully managed by Docker and not tied to a host path:
```bash
docker run -d \
--name trek \
-p 3000:3000 \
-v trek_data:/app/data \
-v trek_uploads:/app/uploads \
-e ENCRYPTION_KEY=<your-32-byte-hex-key> \
--restart unless-stopped \
mauriceboe/trek:latest
```
Docker creates `trek_data` and `trek_uploads` automatically on first run. Named volumes are easier to manage with `docker volume` commands and work better in some NAS or container-management environments.
## Health Check
The container exposes a health endpoint at:
```
http://localhost:3000/api/health
```
Docker polls it automatically (interval: 30 s, timeout: 5 s, retries: 3, start period: 15 s). You can check it manually:
```bash
curl -s http://localhost:3000/api/health
```
## Verify the Container Is Running
```bash
docker ps --filter name=trek
docker logs trek
```
## Limitations of `docker run`
A bare `docker run` command has no built-in secret management and is harder to reproduce after a system reboot. For production, see [Install-Docker-Compose](Install-Docker-Compose), which adds security hardening (`read_only`, `cap_drop`, `cap_add`, `no-new-privileges`, `tmpfs`) and makes it easy to manage environment variables through a `.env` file.
## Next Steps
- [Reverse-Proxy](Reverse-Proxy) — HTTPS is required for PWA install and the `trek_session` cookie `secure` flag
- [Install-Docker-Compose](Install-Docker-Compose) — recommended for production
- [Environment-Variables](Environment-Variables) — full list of configurable variables
- [Updating](Updating) — how to pull a new image without losing data