docker-compose.yml

---
version: '3.8'

x-shared:
  zammad-service: &zammad-service
    environment: &zammad-environment
      MEMCACHE_SERVERS: ${MEMCACHE_SERVERS}
      POSTGRESQL_DB: ${POSTGRES_DB}
      POSTGRESQL_HOST: ${POSTGRES_HOST}
      POSTGRESQL_USER: ${POSTGRES_USER}
      POSTGRESQL_PASS: ${POSTGRES_PASS}
      POSTGRESQL_PORT: ${POSTGRES_PORT}
      REDIS_URL: ${REDIS_URL}
      # Allow passing in these variables via .env:
      AUTOWIZARD_JSON:
      AUTOWIZARD_RELATIVE_PATH:
      ELASTICSEARCH_ENABLED:
      ELASTICSEARCH_HOST:
      ELASTICSEARCH_PORT:
      ELASTICSEARCH_SCHEMA:
      ELASTICSEARCH_NAMESPACE:
      ELASTICSEARCH_REINDEX:
      ELASTICSEARCH_SSL_VERIFY:
      NGINX_PORT:
      NGINX_SERVER_NAME:
      NGINX_SERVER_SCHEME:
      POSTGRESQL_DB_CREATE:
      POSTGRESQL_OPTIONS:
      RAILS_TRUSTED_PROXIES:
      ZAMMAD_WEB_CONCURRENCY:
      ZAMMAD_SESSION_JOBS:
      ZAMMAD_PROCESS_SCHEDULED:
      ZAMMAD_PROCESS_DELAYED_JOBS_WORKERS:
    image: ${IMAGE_REPO}:${VERSION}
    restart: ${RESTART}
    volumes:
      - zammad-storage:/opt/zammad/storage
      - zammad-var:/opt/zammad/var
    depends_on:
      - zammad-memcached
      - zammad-postgresql
      - zammad-redis

services:

  zammad-backup:
    command: ["zammad-backup"]
    depends_on:
      - zammad-railsserver
      - zammad-postgresql
    entrypoint: /usr/local/bin/backup.sh
    environment:
      <<: *zammad-environment
      BACKUP_TIME: "03:00"
      HOLD_DAYS: "10"
      TZ: Europe/Berlin
    image: postgres:${POSTGRES_VERSION}
    restart: ${RESTART}
    volumes:
      - zammad-backup:/var/tmp/zammad
      - zammad-storage:/opt/zammad/storage:ro
      - zammad-var:/opt/zammad/var:ro
      - ./scripts/backup.sh:/usr/local/bin/backup.sh:ro

  zammad-elasticsearch:
    image: bitnami/elasticsearch:${ELASTICSEARCH_VERSION}
    restart: ${RESTART}
    volumes:
      - elasticsearch-data:/bitnami/elasticsearch/data

  zammad-init:
    <<: *zammad-service
    command: ["zammad-init"]
    depends_on:
      - zammad-postgresql
    restart: on-failure
    user: 0:0
    volumes:
      - zammad-storage:/opt/zammad/storage
      - zammad-var:/opt/zammad/var

  zammad-memcached:
    command: memcached -m 256M
    image: memcached:${MEMCACHE_VERSION}
    restart: ${RESTART}

  zammad-nginx:
    <<: *zammad-service
    command: ["zammad-nginx"]
    expose:
      - "8080"
    depends_on:
      - zammad-railsserver
    volumes:
      - zammad-var:/opt/zammad/var:ro # required for the zammad-ready check file

  zammad-postgresql:
    environment:
      POSTGRES_DB: ${POSTGRES_DB}
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASS}
    image: postgres:${POSTGRES_VERSION}
    restart: ${RESTART}
    volumes:
      - postgresql-data:/var/lib/postgresql/data

  zammad-railsserver:
    <<: *zammad-service
    command: ["zammad-railsserver"]

  zammad-redis:
    image: redis:${REDIS_VERSION}
    restart: ${RESTART}
    volumes:
      - redis-data:/data

  zammad-scheduler:
    <<: *zammad-service
    command: ["zammad-scheduler"]

  zammad-websocket:
    <<: *zammad-service
    command: ["zammad-websocket"]

volumes:
  elasticsearch-data:
    driver: local
  postgresql-data:
    driver: local
  redis-data:
    driver: local
  zammad-backup:
    driver: local
  zammad-storage:
    driver: local
  zammad-var:
    driver: local