How to manage related applications

Hint: Use Juju 3. Otherwise replace juju integrate with juju relate for Juju 2.9.

New mysql_client interface:

Relations to new applications are supported via the “mysql_client” interface. To create a relation:

juju integrate mysql application

To remove a relation:

juju remove-relation mysql application

Legacy mysql interface:

We have also added support for the database legacy relation via the mysql interface. Please note that these interface is deprecated.

juju integrate mysql:mysql wordpress

Also extended permissions can be requested using mysql-root edpoint:

juju integrate mysql:mysql-root wordpress

Rotate applications password

To rotate the passwords of users created for related applications, the relation should be removed and related again. That process will generate a new user and password for the application.

juju remove-relation application mysql
juju integrate application mysql

Internal operator user

The operator user is used internally by the Charmed MySQL Operator, the set-password action can be used to rotate its password.

• To set a specific password for the operator user

juju run mysql/leader set-password password=<password>

• To randomly generate a password for the operator user

juju run mysql/leader set-password