Quoc Dat's questions

I am using docker-compose to create mysql container. I get host IP 172.21.0.2. But when I connect mysql. I get error:

1. My docker-compose.yml:

   version: '2'
   services:
   
   ### Mysql container
       mysql:
         image: mysql:latest
         ports:
          - "3306:3306"
         volumes:
          - /var/lib/mysql:/var/lib/mysql
        environment:
          MYSQL_ROOT_PASSWORD: root
          MYSQL_DATABASE: test_db
          MYSQL_USER: test
          MYSQL_PASSWORD: test_pass
   

2. Get my host IP docker inspect db_mysql_1 | grep IPAddress

   "IPAddress": "172.21.0.2",

3. Access mysql: mysql -h 172.21.0.2 -P 3306 -u root -proot.

   ERROR 1130 (HY000): Host '172.21.0.1' is not allowed to connect to this MySQL server

How can I connect to mysql container?