Installing MySQL in Docker fails with error message “Can't connect to local MySQL server through socket”

Question

I\'m trying to install mysql inside a docker container,Tried various images from github, it seems they all manage to successfully install the mysql but when I try to run the

Answer 1

My problem was that I was trying to connect from a version of mysql client that seems to be incompatible with the mysql server I installed (mysql:latest which installed version 8.0.22 at the time of this writing).

my mysql client version:

$ mysql --version
mysql  Ver 14.14 Distrib 5.7.26, for Linux (x86_64) using  EditLine wrapper

The docker command that I used to install mysql:latest:

$ docker run --name some-mysql -e MYSQL_ROOT_PASSWORD=somerootpassword -e MYSQL_USER=someuser -e MYSQL_PASSWORD=someuserpassword -d -p 3306:3306 mysql:latest

The errors I got when connecting from my local mysql client to the mysql server:

$ mysql -u someuser -p -h 127.0.0.1
ERROR 2026 (HY000): SSL connection error: unknown error number

(sometimes I would get another error: "ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 2". But I think this happens when I try to connect to the server too early after I started it)

My solution was to install mysql:5.7 instead:

$ docker run --name some-mysql -e MYSQL_ROOT_PASSWORD=somerootpassword -e MYSQL_USER=someuser -e MYSQL_PASSWORD=someuserpassword -d -p 3306:3306 mysql:5.7

and then I can connect to the server (after waiting perhaps 1 minute until the server is ready to accept connections):

$ mysql -u someuser -p -h 127.0.0.1