Mattermost – mit Docker Compose und Traefik installieren

Ich zeige euch hier, wie ihr die Chatplattform Mattermost in wenigen Minuten mit Docker und Traefik realisiert. Die Anleitung beschreibt die Installation der kostenlosen Version und nicht der Enterprise Version.

1. Grundvoraussetzung

• Docker & Docker Compose v2 (Debian / Ubuntu)
• Traefik v2 + 3 – Reverse-Proxy mit CrowdSec im Stack einrichten

2. Ordner anlegen

Zuerst legen wir uns passende Ordner-Strukturen an.

mkdir -p /opt/containers/mattermost/

3. Docker Compose anlegen

Nun legen wir die eigentliche Docker Datei an.

nano /opt/containers/mattermost/docker-compose.yml

Inhalt

version: "2.4"

services:
  postgres:
    image: postgres:${POSTGRES_IMAGE_TAG}
    restart: ${RESTART_POLICY}
    security_opt:
      - no-new-privileges:true
    pids_limit: 100
    read_only: true
    tmpfs:
      - /tmp
      - /var/run/postgresql
    volumes:
      - ${POSTGRES_DATA_PATH}:/var/lib/postgresql/data
    environment:
      # timezone inside container
      - TZ
      # necessary Postgres options/variables
      - POSTGRES_USER
      - POSTGRES_PASSWORD
      - POSTGRES_DB
    networks:
      - default

  mattermost:
    depends_on:
      - postgres
    image: mattermost/${MATTERMOST_IMAGE}:${MATTERMOST_IMAGE_TAG}
    restart: ${RESTART_POLICY}
    security_opt:
      - no-new-privileges:true
    pids_limit: 200
    read_only: ${MATTERMOST_CONTAINER_READONLY}
    tmpfs:
      - /tmp
    volumes:
      - ${MATTERMOST_CONFIG_PATH}:/mattermost/config:rw
      - ${MATTERMOST_DATA_PATH}:/mattermost/data:rw
      - ${MATTERMOST_LOGS_PATH}:/mattermost/logs:rw
      - ${MATTERMOST_PLUGINS_PATH}:/mattermost/plugins:rw
      - ${MATTERMOST_CLIENT_PLUGINS_PATH}:/mattermost/client/plugins:rw
      - ${MATTERMOST_BLEVE_INDEXES_PATH}:/mattermost/bleve-indexes:rw
    environment:
      - TZ
      # necessary Mattermost options/variables (see env.example)
      - MM_SQLSETTINGS_DRIVERNAME
      - MM_SQLSETTINGS_DATASOURCE
      # necessary for bleve
      - MM_BLEVESETTINGS_INDEXDIR
      # additional settings
      - MM_SERVICESETTINGS_SITEURL
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.mattermost.entrypoints=websecure"
      - "traefik.http.routers.mattermost.rule=(Host(`mattermost.euredomain.de`))"
      - "traefik.http.routers.mattermost.tls=true"
      - "traefik.http.routers.mattermost.tls.certresolver=http_resolver"
      - "traefik.http.routers.mattermost.service=mattermost"
      - "traefik.http.services.mattermost.loadbalancer.server.port=8065"
      - "traefik.docker.network=proxy"
      - "traefik.http.routers.mattermost.middlewares=default@file"
    networks:
      - proxy
      - default

networks:
  proxy:
    external: true

Notwendige Anpassungen:

1. eure Domain bei Traefik anpassen („mattermost.euredomain.de“)

4. env Datei erstellen

Nun erstellen wir noch eine zusätzliche Datei, in welcher wir alle Konfigurationen vornehmen.

nano /opt/containers/mattermost/.env

Kopiert nun folgendes in die Datei:

# Domain of service
DOMAIN=mattermost.euredomain.de

# Container settings
## Timezone inside the containers. The value needs to be in the form 'Europe/Berlin'.
## A list of these tz database names can be looked up at Wikipedia
## https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
TZ=Europe/Berlin
RESTART_POLICY=unless-stopped

# Postgres settings
## Documentation for this image and available settings can be found on hub.docker.com
## https://hub.docker.com/_/postgres
## Please keep in mind this will create a superuser and it's recommended to use a less privileged
## user to connect to the database.
## A guide on how to change the database user to a nonsuperuser can be found in docs/creation-of-nonsuperuser.md
POSTGRES_IMAGE_TAG=13-alpine
POSTGRES_DATA_PATH=./volumes/db/var/lib/postgresql/data

POSTGRES_USER=mmuser
POSTGRES_PASSWORD=mmuser_password
POSTGRES_DB=mattermost

# Nginx
## The nginx container will use a configuration found at the NGINX_MATTERMOST_CONFIG. The config aims
## to be secure and uses a catch-all server vhost which will work out-of-the-box. For additional settings
## or changes ones can edit it or provide another config. Important note: inside the container, nginx sources
## every config file inside */etc/nginx/conf.d* ending with a *.conf* file extension.

## Inside the container the uid and gid is 101. The folder owner can be set with
## `sudo chown -R 101:101 ./nginx` if needed.
NGINX_IMAGE_TAG=alpine

## The folder containing server blocks and any additional config to nginx.conf
NGINX_CONFIG_PATH=./nginx/conf.d
NGINX_DHPARAMS_FILE=./nginx/dhparams4096.pem

CERT_PATH=./volumes/web/cert/cert.pem
KEY_PATH=./volumes/web/cert/key-no-password.pem
#GITLAB_PKI_CHAIN_PATH=<path_to_your_gitlab_pki>/pki_chain.pem
#CERT_PATH=./certs/etc/letsencrypt/live/${DOMAIN}/fullchain.pem
#KEY_PATH=./certs/etc/letsencrypt/live/${DOMAIN}/privkey.pem

## Exposed ports to the host. Inside the container 80 and 443 will be used
HTTPS_PORT=443
HTTP_PORT=80

# Mattermost settings
## Inside the container the uid and gid is 2000. The folder owner can be set with
## `sudo chown -R 2000:2000 ./volumes/app/mattermost`.
MATTERMOST_CONFIG_PATH=./volumes/app/mattermost/config
MATTERMOST_DATA_PATH=./volumes/app/mattermost/data
MATTERMOST_LOGS_PATH=./volumes/app/mattermost/logs
MATTERMOST_PLUGINS_PATH=./volumes/app/mattermost/plugins
MATTERMOST_CLIENT_PLUGINS_PATH=./volumes/app/mattermost/client/plugins
MATTERMOST_BLEVE_INDEXES_PATH=./volumes/app/mattermost/bleve-indexes

## Bleve index (inside the container)
MM_BLEVESETTINGS_INDEXDIR=/mattermost/bleve-indexes

## This will be 'mattermost-enterprise-edition' or 'mattermost-team-edition' based on the version of Mattermost you're installing.
#MATTERMOST_IMAGE=mattermost-enterprise-edition
MATTERMOST_IMAGE=mattermost-team-edition
MATTERMOST_IMAGE_TAG=latest

## Make Mattermost container readonly. This interferes with the regeneration of root.html inside the container. Only use
## it if you know what you're doing.
## See https://github.com/mattermost/docker/issues/18
MATTERMOST_CONTAINER_READONLY=false

## The app port is only relevant for using Mattermost without the nginx container as reverse proxy. This is not meant
## to be used with the internal HTTP server exposed but rather in case one wants to host several services on one host
## or for using it behind another existing reverse proxy.
APP_PORT=8065

## Configuration settings for Mattermost. Documentation on the variables and the settings itself can be found at
## https://docs.mattermost.com/administration/config-settings.html
## Keep in mind that variables set here will take precedence over the same setting in config.json. This includes
## the system console as well and settings set with env variables will be greyed out.

## Below one can find necessary settings to spin up the Mattermost container
MM_SQLSETTINGS_DRIVERNAME=postgres
MM_SQLSETTINGS_DATASOURCE=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}?sslmode=disable&connect_timeout=10

## Example settings (any additional setting added here also needs to be introduced in the docker-compose.yml)
MM_SERVICESETTINGS_SITEURL=https://${DOMAIN}

Noch anzupassen:

DOMAIN: hier gebt ihr die identische Domain wie bei Traefik an

5. Mattermost starten

Nun können wir Mattermost starten. Gebt dazu folgendes ein:

docker compose -f /opt/containers/mattermost/docker-compose.yml up

Euch sollte nun immer folgender Fehler angezeigt werden.

Jetzt können wir Mattermost wieder mit “STRG+C” beenden. Nun beheben wir den Fehler. Dazu gebt ihr folgendes ein:

chown -R 2000:2000 /opt/containers/mattermost/volumes/app/mattermost

Nun starten wir Mattermost erneut.

docker compose -f /opt/containers/mattermost/docker-compose.yml up -d

Geht nun nach einigen Minuten auf eure Homepage mattermost.euredomain.de und ihr solltet folgendes sehen:

Zuerst füllen wir das Formular aus. Anschließend könnt ihr Mattermost bereits nutzen.

6. Quellen

https://docs.mattermost.com/overview/index.html

https://github.com/mattermost/mattermost-docker

https://hub.docker.com/u/mattermost