How to execute MySQL command from the host to container running MySQL server?

Question

I have followed the instruction in https://registry.hub.docker.com/_/mysql/ to pull an image and running a container in which it runs a MySQL server.

The container is run

Answer 1

Its possible with docker run, start a new container just to execute your mysql statement. This approach helped me to workaround the access denied problem when you try to run a statement with docker exec using localhost to connect to mysql

$ docker run -it --rm mysql mysql -h172.17.0.2 -uroot -pmy-secret-pw -e "show databases;"

Answer 2

docker exec -i some_mysql_container mysql -uroot -ppassword  <<< "select database();"

Answer 3

In my case the <<< solution did not work.

Instead I used -e.

Example:

docker exec ${CONTAINER_NAME} mysql -u ${USER_NAME} -p${PASSWORD} -e "drop schema test; create schema test;"