Editing MariaDB (section)

== Reinstall ==

Reinstalling the application on top of an existing database/configuration is problematic for two reasons, both of them relating to the database passwords:

# Unless you provide passwords, the helm chart will generate new random passwords for each install -- which will not line up with the old passwords in the database that is still around.
# The LocalSettings.php file is where the mediawiki app itself stores the password for the database (in clear text ...) -- so even if the app is reinstalled, the LocalSettings.php is not overwritten, and therefore the old password is still there.

You can solve this problem before you start by simply specifying the passwords in the 'values.yaml' file:

* 'db.password' = '<password>'
* 'db.rootUser.password' = '<rootpassword>'

If you forget to do this (or somehow the database passwords get changed) you will have to access the database from OUTSIDE the pod and reset the root password using any of the multiple web pages that tell you how to do it.  THEN, you will have to update the secret 'mariadb' with the new passwords (if the application is installed) or set it in the values.html files before you reinstall.