Running Secrets for WordPress Application with Compose v3.1 File Format

docker-compose.yml

version: "3.1"
services:
  mysql:
    image: "mysql"
    networks:
      test:
        aliases: ["mysql"]
    volumes:
      - "db_data:/var/lib/mysql"
    secrets:
      - source: "mysqlpasswd"
        target: "mysqlpasswd"
        uid: "0"
        gid: "0"
        mode: 0444
      - source: "mysqlrootpasswd"
        target: "mysqlrootpasswd"
        uid: "0"
        gid: "0"
        mode: 0444
    environment:
      MYSQL_ROOT_PASSWORD_FILE: "/run/secrets/mysqlrootpasswd"
      MYSQL_PASSWORD_FILE: "/run/secrets/mysqlpasswd"
      MYSQL_USER: "wordpress"
      MYSQL_DATABASE: "wordpress"
    deploy:
      replicas: 1
    web:
    image: "wordpress:latest"
    ports:
      - "80:80"
    volumes:
      - "wp-data:/var/www/html"
    networks:
      test:
        aliases: ["web"]
    secrets:
      - source: "mysqlpasswd"
        target: "mysqlpasswd"
        uid: "0"
        gid: "0"
        mode: 0444
      - source: "wordpressdbpasswd"
        target: "wordpressdbpasswd"
        uid: "0"
        gid: "0"
        mode: 0444
    environment:
      WORDPRESS_DB_USER: "wordpress"
      WORDPRESS_DB_PASSWORD_FILE: "/run/secrets/wordpressdbpasswd"
      WORDPRESS_DB_HOST: "mysql:3306"
      WORDPRESS_DB_NAME: "wordpress"
    deploy:
      replicas: 1
networks:
  test:
    driver: "overlay"
    internal: true
    
 secrets:
  mysqlpasswd:
    external:
      name: "collab_*"
secrets:
  mysqlrootpaswd:
    external:
      name: "collab_*"
secrets:
  mysqldbpasswd:
    external:
      name: "collab_*"