docker-compose.yml

  1. version: "3.8"
  3. services:
  4.   db:
  5.     image: mysql:5.7
  6.     environment:
  7.       - MYSQL_ROOT_PASSWORD_FILE=/run/secrets/mysql_pass
  8.     secrets:
  9.       - mysql_pass
  10.     volumes:
  11.       - data:/var/lib/mysql
  13. volumes:
  14.   data:
  16. secrets:
  17.   mysql_pass:
  18.     file: mysql_pass.txt

mysql_pass.txt

  1. vagrant@swarm-manager:~$ more mysql_pass.txt
  2. abc123
  3. vagrant@swarm-manager:~$