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LibrePortal/containers/matrix/docker-compose.yml
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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networks:
DOCKER_NETWORK_DATA: #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
external: true
services:
# Synapse — the homeserver. Everything that matters lives in
# ./data/homeserver.yaml, written by matrix_install_post_compose from
# resources/homeserver.yaml; Synapse takes no meaningful configuration from
# the environment, so there is little to see here.
matrix-synapse: #LIBREPORTAL|SERVICE_TAG_1|matrix-synapse
container_name: matrix-synapse
image: matrixdotorg/synapse:v1.158.0 #LIBREPORTAL|MATRIX_VERSION_TAG|v1.158.0
# Synapse writes the media store, and under rootless Docker the image's
# own uid maps to a host sub-UID that owns nothing. Same fix as the
# other apps: run as whoever owns the bind mounts.
user: "USER_DATA" #LIBREPORTAL|USER_TAG|USER_DATA
restart: unless-stopped
# GLUETUN_OFF_BEGIN
ports:
- "PORTS_DATA_1" #LIBREPORTAL|PORTS_TAG_1|PORTS_DATA_1
# GLUETUN_OFF_END
volumes:
- ./data:/data
environment:
- TZ=TIMEZONE_DATA #LIBREPORTAL|TIMEZONE_TAG|TIMEZONE_DATA
- SYNAPSE_CONFIG_PATH=/data/homeserver.yaml
depends_on:
- matrix-postgres
labels:
libreportal.category: "CATEGORY_DATA" #LIBREPORTAL|CATEGORY_TAG|CATEGORY_DATA
libreportal.title: "TITLE_DATA" #LIBREPORTAL|TITLE_TAG|TITLE_DATA
libreportal.backup.db: "postgres:matrix-postgres:postgres:"
# The media store holds every uploaded file and avatar. It is not in
# the database, so without this it would not come back on restore.
libreportal.backup.files: "matrix-synapse:/data/media_store:data/media_store"
traefik.enable: TRAEFIK_ENABLE_DATA #LIBREPORTAL|TRAEFIK_ENABLE_TAG|TRAEFIK_ENABLE_DATA
# TRAEFIK_PORT_1_BEGIN
traefik.http.routers.matrix-synapse.entrypoints: web,websecure
traefik.http.routers.matrix-synapse.rule: Host(`DOMAINSUBNAME_DATA_1`) #LIBREPORTAL|DOMAINSUBNAME_TAG_1|DOMAINSUBNAME_DATA_1
traefik.http.routers.matrix-synapse.tls: true
traefik.http.routers.matrix-synapse.tls.certresolver: production
traefik.http.services.matrix-synapse.loadbalancer.server.port: PORT_INTERNAL_DATA_1 #LIBREPORTAL|PORT_INTERNAL_TAG_1|PORT_INTERNAL_DATA_1
traefik.http.routers.matrix-synapse.middlewares: MIDDLEWARE_DATA_1 #LIBREPORTAL|MIDDLEWARE_TAG_1|MIDDLEWARE_DATA_1
# TRAEFIK_PORT_1_END
traefik.docker.network: DOCKER_NETWORK_DATA #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
healthcheck:
disable: HEALTHCHECK_DATA #LIBREPORTAL|HEALTHCHECK_TAG|HEALTHCHECK_DATA
# GLUETUN_OFF_BEGIN
networks:
DOCKER_NETWORK_DATA: #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
ipv4_address: IP_DATA_1 #LIBREPORTAL|IP_TAG_1|IP_DATA_1
# GLUETUN_OFF_END
# GLUETUN_ON_BEGIN
# network_mode: "container:gluetun-service"
# GLUETUN_ON_END
# Element web — a static single-page app served by nginx. It talks to
# Synapse from the user's browser, not server-side, so it needs no link to
# the homeserver container beyond the base_url baked into config.json.
matrix-element: #LIBREPORTAL|SERVICE_TAG_2|matrix-element
container_name: matrix-element
image: vectorim/element-web:v1.12.25 #LIBREPORTAL|MATRIX_ELEMENT_VERSION_TAG|v1.12.25
restart: unless-stopped
# GLUETUN_OFF_BEGIN
ports:
- "PORTS_DATA_2" #LIBREPORTAL|PORTS_TAG_2|PORTS_DATA_2
# GLUETUN_OFF_END
volumes:
- ./element/config.json:/app/config.json:ro
environment:
- TZ=TIMEZONE_DATA #LIBREPORTAL|TIMEZONE_TAG|TIMEZONE_DATA
labels:
libreportal.category: "CATEGORY_DATA" #LIBREPORTAL|CATEGORY_TAG|CATEGORY_DATA
libreportal.title: "TITLE_DATA" #LIBREPORTAL|TITLE_TAG|TITLE_DATA
traefik.enable: TRAEFIK_ENABLE_DATA #LIBREPORTAL|TRAEFIK_ENABLE_TAG|TRAEFIK_ENABLE_DATA
# TRAEFIK_PORT_2_BEGIN
traefik.http.routers.matrix-element.entrypoints: web,websecure
traefik.http.routers.matrix-element.rule: Host(`DOMAINSUBNAME_DATA_2`) #LIBREPORTAL|DOMAINSUBNAME_TAG_2|DOMAINSUBNAME_DATA_2
traefik.http.routers.matrix-element.tls: true
traefik.http.routers.matrix-element.tls.certresolver: production
traefik.http.services.matrix-element.loadbalancer.server.port: PORT_INTERNAL_DATA_2 #LIBREPORTAL|PORT_INTERNAL_TAG_2|PORT_INTERNAL_DATA_2
traefik.http.routers.matrix-element.middlewares: MIDDLEWARE_DATA_2 #LIBREPORTAL|MIDDLEWARE_TAG_2|MIDDLEWARE_DATA_2
# TRAEFIK_PORT_2_END
traefik.docker.network: DOCKER_NETWORK_DATA #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
healthcheck:
disable: HEALTHCHECK_DATA #LIBREPORTAL|HEALTHCHECK_TAG|HEALTHCHECK_DATA
# GLUETUN_OFF_BEGIN
networks:
DOCKER_NETWORK_DATA: #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
ipv4_address: IP_DATA_2 #LIBREPORTAL|IP_TAG_2|IP_DATA_2
# GLUETUN_OFF_END
# GLUETUN_ON_BEGIN
# network_mode: "container:gluetun-service"
# GLUETUN_ON_END
# No `user:` override — the postgres entrypoint starts as root, chowns
# PGDATA and drops privileges, which works under rootless because
# container-root is the install user that owns the mount.
matrix-postgres:
image: postgres:15-alpine
container_name: matrix-postgres
restart: unless-stopped
environment:
- TZ=TIMEZONE_DATA #LIBREPORTAL|TIMEZONE_TAG|TIMEZONE_DATA
- POSTGRES_USER=synapse
- POSTGRES_PASSWORD=MATRIX_DB_PASSWORD_DATA #LIBREPORTAL|MATRIX_DB_PASSWORD_TAG|MATRIX_DB_PASSWORD_DATA
- POSTGRES_DB=synapse
# Not optional. Synapse refuses to start against a database with any
# other collation or ctype — it needs deterministic byte ordering for
# its indexes, and a C.UTF-8 locale is the only thing that gives it.
- POSTGRES_INITDB_ARGS=--encoding=UTF8 --locale=C
volumes:
- ./postgres:/var/lib/postgresql/data
networks:
DOCKER_NETWORK_DATA: #LIBREPORTAL|DOCKER_NETWORK_TAG|DOCKER_NETWORK_DATA
ipv4_address: IP_DATA_3 #LIBREPORTAL|IP_TAG_3|IP_DATA_3
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