version: "3.8" services: db: image: mysql ports: - "3306:3306" environment: - MYSQL_ROOT_PASSWORD=root - MYSQL_DATABASE=tlc - MYSQL_USER=tlc - MYSQL_PASSWORD=tlc etherpad: image: etherpad/etherpad ports: - "9001:9001" volumes: - ./APIKEY.txt:/opt/etherpad-lite/APIKEY.txt mail: image: bytemark/smtp restart: always ports: - "2525:25"