connecting to a docker-compose mysql container denies access but docker running same image does not

Question

I am having some issues connecting to the mysql docker container that I have launched with docker-compose. This is a long post (sorry!).

Here is my docker-compose.ym

Answer 1

editd docker-compose.yaml is not work when you already start that container,

so I support this way：

1： chack you db containers that already exist

docker ps

CONTAINER ID        NAMES               PORTS       STATUS
1cbfe602466a        mysql5.7                        Exited (0) About an hour ago

2: if the container has been stared,then stop it and rm

docker stop 1cbfe602466a //（mysql5.7）
docker rm 1cbfe602466a

3: now you can Restart mysql container，

docker-compose.yaml //(Pay attention to formatting your code)

  mysql5.7:
    container_name: mysql5.7
    image: mysql:5.7
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=root
    ports:
      - 3306:3306

4: run commend:

docker-compose up -d mysql5.7

5: you are success! you can check it into container .

docker exec -it mysql5.7 /bin/bash

root@1719480b6716:/# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.29-log MySQL Community Server (GPL)

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