not able to connect to mysql docker from local

Question

I am trying to connect to mysql database from docker image. However it's throwing errors.

following is the docker image I am using. https://hub.docker.com/_/mysql/

And following is the command I have used to run the docker image.

docker run -p 3306:3306 --name mysql_80 -e MYSQL_ROOT_PASSWORD=password -d mysql:8

Following is the output of docker ps command

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                                                              NAMES
9f35d2e39476        mysql:8             "docker-entrypoint.s…"   5 minutes ago       Up 5 minutes        0.0.0.0:3306->3306/tcp

if I check the IP using docker inspect and ping that IP, it shows IP is not reachable.

docker inspect 9f35d2e39476 | grep -i ipaddress

And if i try to connect using localhost and 127.0.0.1 I am getting following error.

Unable to load authentication plugin 'caching_sha2_password'.

Answer 1

First of all, be aware that you're using non stable software, so there can be major changes between releases and unexpected behaviour.

Edit: Is not in development anymore, stable release launched April 19, 2018

Secondly, you cannot ping directly your container, it's in other net, but you can easily use another container to ping him.

mysql 8 uses caching_sha2_password as the default authentication plugin instead of mysql_native_password. More info here.

Many mysql drivers haven't added support for caching_sha2_password yet.

If you're having problems with it, you can change to the old authentication plugin with something like this:

docker run -p 3306:3306 --name mysql_80 -e MYSQL_ROOT_PASSWORD=password -d mysql:8 mysqld --default-authentication-plugin=mysql_native_password