mysql database access denied for user root

I mistakenly imported a dump file from openshift 2 for my project in openshift3 , which contains script that removes the root user from users file (mysql.user) and replace it with the user and host that was used in openshift.
Now the mysql57 image cant access the mysql database and the very important that we have. it doesn't response to environment variables that controls user name and password . can you help.