Files
TREK/wiki/Environment-Variables.md
T
Julien G. 2a37eeccb3 fix: hot fixes 23-04-2026 (#856)
* fix(packing): resolve avatar URL path in bag and category assignees (#854)

packingService was returning raw avatar filenames from the DB instead of
the full /uploads/avatars/<filename> path, causing broken profile images
for users with uploaded avatars.

* fix(budget): use Map.get() to fix category rename no-op (#855)

* fix(security): relax Referrer-Policy and document HSTS_INCLUDE_SUBDOMAINS (#862) (#863)

- Change Helmet default from no-referrer to strict-origin-when-cross-origin
  so browsers send the origin on cross-origin requests, allowing Google Maps
  API key restrictions by HTTP referrer to work correctly
- Document HSTS_INCLUDE_SUBDOMAINS in all deployment artifacts:
  .env.example, docker-compose.yml, README.md, unraid-template.xml,
  charts/values.yaml, charts/configmap.yaml, wiki/Environment-Variables.md

* fix(planner): prefetch budget items on trip page mount (#864)

Loads budgetItems alongside reservations when TripPlannerPage mounts so
the Budget category dropdown in ReservationModal and TransportModal shows
pre-existing categories on first open, regardless of whether the Budget
tab has been visited.

Closes #861

* fix(reservations): prevent Invalid Date when end time is set without end date (#866)

When reservation_end_time held a bare time string ("HH:MM"), fmtDate()
produced Invalid Date on the reservation card.

- Modal: when end date is blank but end time is filled, construct a
  same-day ISO datetime using the start date (prevents time-only strings
  from ever being persisted)
- Panel: derive endDatePart via regex so date-only end values ("YYYY-MM-DD")
  still show the multi-day range, while bare time strings are skipped and
  handled correctly by the existing time column logic

Closes #860

* fix(planner): format reservation end time instead of rendering raw ISO string (#867)

Closes #859

* fix(planner): wire Route toggle into mobile day sidebar (#850) (#868)

The per-booking Route icon was missing on mobile because the mobile
DayPlanSidebar invocation in TripPlannerPage didn't pass
visibleConnectionIds or onToggleConnection. Mobile PWA users couldn't
activate reservation map overlays without forcing desktop mode.

Also corrects the Map-Features wiki: fixes the setting name
("Booking route labels" not "Show connection labels"), documents the
route_calculation requirement for travel-time pills, and explains that
overlays are off by default and must be toggled per reservation.
2026-04-23 19:49:36 +02:00

7.4 KiB

Environment Variables

Complete reference for all environment variables TREK reads.

How to Set Variables

  • Docker Compose — use the environment: block or a .env file alongside docker-compose.yml
  • Docker run — pass each variable with -e VARIABLE=value
  • Helm — use env: for plain values and secretEnv: for sensitive values in values.yaml
  • Unraid — set in the container template editor

Core

Variable Description Default
PORT Server port 3000
NODE_ENV Environment (production / development) production
ENCRYPTION_KEY At-rest encryption key — see resolution order below auto
TZ Timezone for logs, reminders, and cron jobs (e.g. Europe/Berlin) UTC
LOG_LEVEL info = concise user actions; debug = verbose details info
DEFAULT_LANGUAGE Default language on the login page — see supported codes below en
ALLOWED_ORIGINS Comma-separated origins for CORS and email notification links same-origin
ALLOW_INTERNAL_NETWORK Allow outbound requests to private/RFC-1918 IPs. Set true if Immich or other integrated services are on your local network. Loopback (127.x) and link-local (169.254.x) addresses remain blocked regardless. false
APP_URL Public base URL (e.g. https://trek.example.com). Required when OIDC is enabled — must match the redirect URI registered with your IdP. Also used as the base URL for email notification links.

ENCRYPTION_KEY — Resolution Order

server/src/config.ts resolves the encryption key in this order:

  1. ENCRYPTION_KEY env var — explicit value, always takes priority. Persisted to data/.encryption_key automatically.
  2. data/.encryption_key file — present on any install that has started at least once.
  3. data/.jwt_secret file — one-time fallback for existing installs upgrading without a pre-set key. The value is immediately persisted to data/.encryption_key so JWT rotation cannot break decryption later.
  4. Auto-generated — fresh install with none of the above; persisted to data/.encryption_key.

Setting ENCRYPTION_KEY explicitly is recommended so you can back it up independently of the data volume.

DEFAULT_LANGUAGE — Supported Codes

Verified in server/src/config.ts (line 107):

de, en, es, fr, hu, nl, br, cs, pl, ru, zh, zh-TW, it, ar

Note: id (Indonesian / Bahasa Indonesia) appears in client/src/i18n/supportedLanguages.ts but is not in the server's supported-codes list in config.ts. Setting DEFAULT_LANGUAGE=id will fall back to en with a warning in the server log.


HTTPS / Proxy

These three variables work together behind a TLS-terminating reverse proxy. See Reverse-Proxy for the full explanation.

Variable Description Default
FORCE_HTTPS When true: 301-redirects HTTP→HTTPS, sends HSTS (max-age=31536000), adds CSP upgrade-insecure-requests, forces cookie secure flag. Only useful behind a TLS proxy. Requires TRUST_PROXY. false
HSTS_INCLUDE_SUBDOMAINS When true: adds the includeSubDomains directive to the HSTS header, extending HTTPS enforcement to all subdomains. Only effective when HSTS is active (FORCE_HTTPS=true or NODE_ENV=production). Leave false if you run other services on sibling subdomains over plain HTTP. false
TRUST_PROXY Number of trusted proxy hops. Tells Express to read the real client IP from X-Forwarded-For and protocol from X-Forwarded-Proto. Defaults to 1 automatically in production. Required for FORCE_HTTPS to detect the forwarded protocol. 1 (production)
COOKIE_SECURE Controls the secure flag on the trek_session cookie. Auto-derived as true when NODE_ENV=production or FORCE_HTTPS=true. Set to false only as an escape hatch for LAN testing without TLS — not recommended in production. auto

Warning: FORCE_HTTPS=true without TRUST_PROXY set causes a redirect loop.


OIDC / SSO

For setup instructions, see OIDC-SSO.

Variable Description Default
OIDC_ISSUER OpenID Connect provider URL (e.g. https://auth.example.com)
OIDC_CLIENT_ID OIDC client ID
OIDC_CLIENT_SECRET OIDC client secret
OIDC_DISPLAY_NAME Label shown on the SSO login button SSO
OIDC_ONLY Force SSO-only mode: disables password login and registration, overrides Admin > Settings toggles, cannot be changed at runtime. First SSO login becomes admin on a fresh instance. false
OIDC_ADMIN_CLAIM OIDC claim used to identify admin users (e.g. groups)
OIDC_ADMIN_VALUE Value of the OIDC claim that grants admin role (e.g. app-trek-admins)
OIDC_SCOPE Space-separated OIDC scopes to request. Fully replaces the default — always include openid email profile plus any extra scopes (e.g. add groups when using OIDC_ADMIN_CLAIM) openid email profile
OIDC_DISCOVERY_URL Override the auto-constructed OIDC discovery endpoint. Required for providers with a non-standard path (e.g. Authentik)

Email / SMTP

SMTP settings can be configured via the Admin panel or overridden with environment variables. Env vars take priority over the database values.

Variable Description Default
SMTP_HOST SMTP server hostname (e.g. smtp.example.com)
SMTP_PORT SMTP server port. Port 465 enables implicit TLS (secure: true); all other ports use STARTTLS or plain.
SMTP_USER SMTP authentication username
SMTP_PASS SMTP authentication password
SMTP_FROM Sender address for outbound emails (e.g. TREK <noreply@example.com>)
SMTP_SKIP_TLS_VERIFY Set true to disable TLS certificate validation. Useful for self-signed certs on internal SMTP relays — not recommended in production. false

SMTP_HOST, SMTP_PORT, and SMTP_FROM are all required for email delivery to work. SMTP_USER and SMTP_PASS are optional (for unauthenticated relays).


Initial Setup

These variables only take effect on first boot, before any user exists.

Variable Description Default
ADMIN_EMAIL Email for the first admin account admin@trek.local
ADMIN_PASSWORD Password for the first admin account random

Both variables must be set together. If either is omitted, the account is created with email admin@trek.local and a randomly generated password that is printed to the server log. Once any user exists, these variables have no effect.


MCP

For setup instructions, see MCP-Overview.

Variable Description Default
MCP_RATE_LIMIT Max MCP API requests per user per minute 300
MCP_MAX_SESSION_PER_USER Max concurrent MCP sessions per user 20

Other

Variable Description Default
DEMO_MODE Enable demo mode (hourly data resets). Not intended for regular use. false