Unable to connect to mysql docker container - mysql

Question

I have a Dockerfile that I am working on that pulls Mysql 5.6 and configures it (mostly with a bash and sql script). I am able to build and run it but when I try to connect to the database in the container I always get:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
I have tried accessing the mysql database by using:
mysql -u root -p
mysql -u root -h 127.0.0.1 -p
I have tried everything I could think of and looked up articles on the internet but nothing works. Can someone tell me why? Here is my Dockerfile and bash script respectively:
FROM mysql:5.6
MAINTAINER Ryan K.
USER root
ADD mysqlAddUser.sh /tmp/
CMD ["/tmp/mysqlAddUser.sh"]
ADD foo.sql /docker-entrypoint-initdb.d/foo.sql
EXPOSE 3306
## Starting mysqld and running Database Scripts
CMD ["/usr/bin/mysqld_safe"]
Bash script:
#!/bin/bash
DATABASE_PASSWORD=test
/usr/bin/mysqld_safe &
mysqladmin --login-path=local -uroot -p"$DATABASE_PASSWORD"
mysqladmin password "$DATABASE_PASSWORD"
mysql -uroot -p"$DATABASE_PASSWORD" -e "UPDATE mysql.user SET Password=PASSWORD('$DATABASE_PASSWORD') WHERE User='root'"
mysql -uroot -p"$DATABASE_PASSWORD" -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1')"
mysql -uroot -p"$DATABASE_PASSWORD" -e "DELETE FROM mysql.user WHERE User=''"
mysql -uroot -p"$DATABASE_PASSWORD" -e "DELETE FROM mysql.db WHERE Db='test' OR Db='test\_%'"
mysql -uroot -p"$DATABASE_PASSWORD" -e "FLUSH PRIVILEGES"
DB_ROOT_PASS=TEST
DB=portal
mysql --login-path=local -uroot -p"$DB_ROOT_PASS"
mysql -uroot -p"$DATABASE_PASWORD" -e "CREATE DATABASE portal";
mysql -uroot -p"$DATABASE_PASSWORD" -e "CREATE USER portaluser#'localhost' IDENTIFIED BY 'testing'";
mysql -uroot -p"$DATABASE_PASSWORD" -e "GRANT ALL PRIVILEGES ON portal.* TO portaluser#'localhost'";
mysql -uroot -p"$DATABASE_PASSWORD" -e "FLUSH PRIVILEGES";
mysql -uroot -p"$DATABASE_PASSWORD" $DB < /tmp/foo.sql

Answer 1

Was struggling with the same issue with mysql in a docker container. Sometimes I could connect with the mysql client, but more often not. Switched to mariadb and had the same problem.
What seems to have fixed it for me is to add some sleep commands in my scripts that create, start and destroy the docker containers. After commands like 'docker run' and 'docker stop' I added 'sleep 10' and that seems to help.