Self-host MediaWiki

copy# MediaWiki — the community-maintained Docker Hub image with MariaDB (no image is recommended by upstream for production)
mkdir -p mediawiki && cd mediawiki
cat > docker-compose.yml <<'EOF'
services:
  mediawiki:
    image: mediawiki:1.46
    restart: unless-stopped
    ports: ["8080:80"]
    depends_on: [database]
    volumes:
      - images:/var/www/html/images
      # after the web installer, save LocalSettings.php next to this file and uncomment:
      # - ./LocalSettings.php:/var/www/html/LocalSettings.php
  database:
    image: mariadb
    restart: unless-stopped
    environment:
      MYSQL_DATABASE: my_wiki
      MYSQL_USER: wikiuser
      MYSQL_PASSWORD: change-me
      MYSQL_RANDOM_ROOT_PASSWORD: 'yes'
    volumes: ["db:/var/lib/mysql"]
volumes:
  images:
  db:
EOF
docker compose up -d   #  →  http://SERVER_IP:8080  — run the installer (DB host: database), download LocalSettings.php, mount it, restart