services:
  app:
    environment:
      - EMAIL_SUB_PREFIX
      - SMTP_ENABLED
      - SMTP_FROM
      - SMTP_URL
      - SMTP_PORT
      - SMTP_USERNAME
      - SMTP_STARTTLS_ONLY
    secrets:
      - smtp_password

secrets:
  smtp_password:
    name: ${STACK_NAME}_smtp_password_${SECRET_SMTP_PASSWORD_VERSION}
    external: true