Recover installation when creating the database user fails and improve password strength

[nickvergessen]

I reinstalled my setup and ended up with this error on MySQL:

General error: 1819 Your password does not satisfy the current policy requirements

The problem is the exception was logged and swallowed, so the remaining part of the installation process tried to grant privileges to that user and wrote it to the config files resulting afterwards in:

MySQL username and/or password not valid
 -> You need to enter details of an existing account.
Trace: #0 /home/nickv/Nextcloud/25/server/lib/private/Setup.php(353): OC\Setup\MySQL->setupDatabase()
#1 /home/nickv/Nextcloud/25/server/core/Command/Maintenance/Install.php(105): OC\Setup->install()
#2 /home/nickv/Nextcloud/25/server/3rdparty/symfony/console/Command/Command.php(255): OC\Core\Command\Maintenance\Install->execute()
#3 /home/nickv/Nextcloud/25/server/3rdparty/symfony/console/Application.php(1009): Symfony\Component\Console\Command\Command->run()
#4 /home/nickv/Nextcloud/25/server/3rdparty/symfony/console/Application.php(273): Symfony\Component\Console\Application->doRunCommand()
#5 /home/nickv/Nextcloud/25/server/3rdparty/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun()
#6 /home/nickv/Nextcloud/25/server/lib/private/Console/Application.php(213): Symfony\Component\Console\Application->run()
#7 /home/nickv/Nextcloud/25/server/console.php(100): OC\Console\Application->run()
#8 /home/nickv/Nextcloud/25/server/occ(11): require_once('...')
#9 {main}

As per https://ostechnix.com/fix-mysql-error-1819-hy000-your-password-does-not-satisfy-the-current-policy-requirements/ there are 3 levels of password strength and the new default is medium:

MEDIUM Length >= 8, numeric, mixed case, and special characters.

So in a second commit instead of reusing the provided root account, I increased the random password strength that hopefully also matches the STRONG rules

[nickvergessen]

/backport to stable24

[nickvergessen]

/backport to stable23

[PVince81]

👍