Deploy Mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

⭐ 35.2k stars📜 Other🔴 Advanced⏱ ~20 minutes

What You’ll Get

A fully working Mattermost instance running on your server. Your data stays on your hardware — no third-party access, no usage limits, no surprise invoices.

Prerequisites

A server with Docker and Docker Compose installed (setup guide)
A domain name pointed to your server (optional but recommended)
Basic terminal access (SSH)

The Config

Create a directory for Mattermost and add this docker-compose.yml:


# -------------------------------------------------------------------------
# 🚀 Created and distributed by The AltStack
# 🌍 https://thealtstack.com
# -------------------------------------------------------------------------
 
version: '3.8'
 
services:
  mattermost:
    image: mattermost/mattermost-team-edition:latest
    container_name: mattermost
    restart: unless-stopped
    depends_on:
      - db
    ports:
      - "8065:8065"
    environment:
      - MM_SQLSETTINGS_DRIVERNAME=postgres
      - MM_SQLSETTINGS_DATASOURCE=postgres://mmuser:mmuser_password@db:5432/mattermost?sslmode=disable&connect_timeout=10
      - MM_SERVICESETTINGS_SITEURL=http://localhost:8065
    volumes:
      - ./volumes/app/config:/mattermost/config
      - ./volumes/app/data:/mattermost/data
      - ./volumes/app/logs:/mattermost/logs
 
  db:
    image: postgres:13-alpine
    container_name: mattermost-db
    restart: unless-stopped
    environment:
      - POSTGRES_USER=mmuser
      - POSTGRES_PASSWORD=mmuser_password
      - POSTGRES_DB=mattermost
    volumes:
      - ./volumes/db/var/lib/postgresql/data:/var/lib/postgresql/data

Let’s Ship It


# Create a directory
mkdir -p /opt/mattermost && cd /opt/mattermost
 
# Create the docker-compose.yml (paste the config above)
nano docker-compose.yml
 
# Pull images and start
docker compose up -d
 
# Watch the logs
docker compose logs -f

Environment Variables

Variable	Default	Required
`MM_SQLSETTINGS_DRIVERNAME`	`postgres`	No
`MM_SQLSETTINGS_DATASOURCE`	`postgres://mmuser:mmuser_password@db:5432/mattermost?sslmode=disable&connect_timeout=10`	No
`MM_SERVICESETTINGS_SITEURL`	`http://localhost:8065`	No
`POSTGRES_USER`	`mmuser`	No
`POSTGRES_PASSWORD`	`mmuser_password`	No
`POSTGRES_DB`	`mattermost`	No

Post-Deployment Checklist

Service is accessible on the configured port
Admin account created (if applicable)
Reverse proxy configured (Caddy guide)
SSL/HTTPS working
Backup script set up (backup guide)
Uptime monitor added (Uptime Kuma)

The “I Broke It” Section

Container won’t start?


docker compose logs mattermost | tail -50

Port already in use?


# Find what's using the port
lsof -i :PORT_NUMBER

Need to start fresh?


docker compose down -v  # ⚠️ This deletes volumes/data!
docker compose up -d