services:
  couchdb:
    image: couchdb:3.4
    container_name: couchdb
    restart: unless-stopped
    ports:
      - "5984:5984"
    environment:
      - COUCHDB_USER=${COUCHDB_USER}
      - COUCHDB_PASSWORD=${COUCHDB_PASSWORD}
      - TZ=America/Chicago
    volumes:
      # LOCAL disk, not NFS: CouchDB's file locking breaks over NFSv3, the same
      # way it did for guacamole-db (MySQL) and semaphore-db.
      - /var/lib/couchdb/data:/opt/couchdb/data
      # NOT :ro -- CouchDB 3.x writes runtime config back into the last-loaded ini.
      # With a read-only mount it exits 1 immediately and logs NOTHING at all.
      - /var/lib/couchdb/config/local.ini:/opt/couchdb/etc/local.d/local.ini
    labels:
      - "com.centurylinklabs.watchtower.enable=false"
    mem_limit: 1g
    healthcheck:
      test: ["CMD", "curl", "-fsS", "http://localhost:5984/_up"]
      interval: 60s
      timeout: 10s
      retries: 3
      start_period: 30s