How to execute commands inside of docker

First, need list all active containers


docker ps

Get the container ID

1ab2c3d4.....


docker exec -it /bin/bash

Azure Mysql ERROR 9999 ERROR 9002

Mysql Error connections.

ERROR 9002 (28000): The connection string may not be right. Please visit portal for references.

OR

ERROR 9999 (28000): An internal error has occurred. Please retry or report your issues.