LibrePortal/containers/mattermost/mattermost.config
librelad 5706498565 fix(secrets): move app credentials into <app>.config, fix slot collision
Five apps (mastodon, owncloud, mattermost, matrix, stoat) took their generated
secrets from the compose-side generator tags PASSWORD_TAG_<n>/RANDOM_TAG_<n>/
HEX_TAG_<n>/VAPID_TAG_<n>. Those mint a fresh secret on every templating run, so
a reinstall handed the app a new database password while its data volume kept the
one initdb was given, and the app came back up unable to open its own database.

Move them to <app>.config as RANDOMIZED* placeholders, reaching the compose via
the #LIBREPORTAL|<APP>_<KEY>_TAG| mechanism tags_processor_app_config_values
already provides. No new handler: the tag name is derived from the config key, so
this is a config line plus a tag per secret. Generation is unchanged — still
random on first install; the value is now remembered instead of re-rolled.

Also fixes two things this exposed:

- The RANDOMIZED* replacers matched unanchored. `sort -u` orders slots lexically
  (1, 10, 11, 2), so slot 1's pattern rewrote the prefix inside slot 10's
  placeholder and slots 10+ ended up holding slot 1's secret with a digit glued
  on — derivable, and invisible because the values weren't byte-identical.
  Anchoring with \b makes match order irrelevant. Verified at 20 slots across
  all four placeholder types: 64 keys, 64 distinct values, no prefix collisions.

- generateRandomPassword drew from base64 without constraining the mix; measured
  over 2000 draws, 1 in 40 contained no digit at all. Retry until the result has
  both a digit and a letter, bounded so a pathological length can't spin.

owncloud gains a fix in passing: its compose seeded the admin account from
PASSWORD_TAG_2 while the WebUI displayed CFG_OWNCLOUD_ADMIN_PASSWORD, which was
generated separately and never used. Both now read the same value.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-18 19:33:40 +01:00

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#
# =============================================================================
# GENERAL CONFIGURATION
# =============================================================================
# APP_NAME = name of application for use in scripts
# COMPOSE_FILE = default for no app_name in docker-compose file name, app if there is
# BACKUP = if true, include this application in backup operations
# UPDATE_TYPE = auto: new image builds are applied automatically (a recovery snapshot is taken first), manual: only when you press Update
# HEALTHCHECK = if true, default docker health checks for that container will be enabled
# AUTHELIA = if true, use Authelia authentication, if false turned off.
# HEADSCALE = options : false, local, remote (see general config). e.g false or local,remote
# MONITORING = if true, export this app's metrics to Prometheus + Grafana (needs both apps installed)
#
CFG_MATTERMOST_APP_NAME=mattermost
CFG_MATTERMOST_BACKUP=true
CFG_MATTERMOST_BACKUP_STRATEGY=auto
CFG_MATTERMOST_UPDATE_TYPE=auto
CFG_MATTERMOST_COMPOSE_FILE=default
CFG_MATTERMOST_HEALTHCHECK=true
# Left false deliberately. Mattermost ships its own account system and its
# native desktop/mobile clients authenticate against it directly — putting
# Authelia's forward-auth in front of the web port would lock those clients out
# of the API without giving single sign-on in return (OIDC/SAML is a paid tier
# in the Team Edition shipped here). Turn it on only if you intend to use the
# web client exclusively.
CFG_MATTERMOST_AUTHELIA=false
CFG_MATTERMOST_HEADSCALE=false
CFG_MATTERMOST_MONITORING=false
# Postgres password for the `mattermost` role, fed to the compose via
# #LIBREPORTAL|MATTERMOST_DB_PASSWORD_TAG| (both the server's datasource URL and
# the database's own env). Generated on first install and preserved across
# reinstalls — initdb sets it once when the volume is created.
CFG_MATTERMOST_DB_PASSWORD=RANDOMIZEDPASSWORD1
#
# =============================================================================
# METADATA
# =============================================================================
# CATEGORY = application category for grouping
# TITLE = display name for the application
# DESCRIPTION = short description of the application
# LONG_DESCRIPTION = detailed description of the application
# URL = source repository or documentation URL
# ACTIONS = available actions for this application
#
CFG_MATTERMOST_CATEGORY="communication"
CFG_MATTERMOST_TITLE="Mattermost"
CFG_MATTERMOST_DESCRIPTION="Team Chat"
CFG_MATTERMOST_LONG_DESCRIPTION="Mattermost is a self-hosted team chat platform with channels, threads, file sharing and search, plus polished desktop and mobile clients. The Team Edition here is free and unlimited on users, and runs as one container against Postgres — the low-friction option if you want a Discord or Slack replacement that works the moment it starts"
CFG_MATTERMOST_URL="https://github.com/mattermost/mattermost"
CFG_MATTERMOST_ACTIONS="configure|install|restart|shutdown|uninstall"
#
# =============================================================================
# NETWORK CONFIGURATION
# =============================================================================
# DOMAIN = number of domain from the general config, useful when using multiple domains
# WHITELIST = if true only allow whitelisted ips (see general config), if false allow all
#
CFG_MATTERMOST_DOMAIN=1
CFG_MATTERMOST_WHITELIST=false
CFG_MATTERMOST_NETWORK=default
#
# =============================================================================
# PORT CONFIGURATION
# =============================================================================
# PORT_ = port configuration: app|name|external:internal|access|protocol|login|traefik|webui|description
# - app: application name
# - name: service identifier (webui, dns, ssh, etc.)
# - external:internal: port mapping (external can be 'random' for auto-allocation)
# - access: 'public' (internet accessible), 'private' (local network only), 'disabled' (not running)
# - protocol: 'tcp' or 'udp'
# - login: if true, this port requires basic-auth via Traefik (only meaningful when traefik=true)
# - traefik: if true, Traefik handles this port (reverse proxy)
# - webui: if true, this port serves the main web interface
# - description: human-readable description of the service
#
CFG_MATTERMOST_PORT_1="mattermost-service|webui|random:8065|public|tcp|false|true|true|Web Interface||mattermost"