Ggtcf

With the popular MySQL server module from Puppet Labs, it sets $provider to mariadb on Oracle Linux 7.x, which causes issues if I am not using Maria, but instead using Percona. The issue is in params.pp. I was wondering if there is a way to force the $provider to be mysql. I could try creating a symlink to mariadb.log, to get around this issue but it is ugly...

Here's the code from params.pp:

case $::osfamily {
'RedHat': {
 case $::operatingsystem OracleLinux)$/: 
 if versioncmp($::operatingsystemmajrelease, '7') >= 0 
 $provider = 'mariadb'
 else 
 $provider = 'mysql'
 
 
 default: 
 $provider = 'mysql'
 
 

Source: https://github.com/puppetlabs/puppetlabs-mysql/blob/master/manifests/params.pp

Error: Could not set 'present' on ensure: No such file or directory @ rb_sysopen - /var/log/mariadb/mariadb.log at /[redacted]/modules/mysql/manifests/server/installdb.pp:25

Bsically, I am looking for a graceful workaround via Puppet over rides. But not experienced enough to know how to implement it. :(

Thanks!

That you are trying to work through a provider suggests that you are approaching this through resources, such as mysql::db, but that's never going to work if the server is not configured to match. The $provider variable you highlight in the question is both set and used only inside class mysql::params, and only for certain OS families even there. It is an ordinary variable belonging to the class, not a class parameter, and, being undocumented, it should be considered private to that class. In any event, no, Puppet provides no way to override that variable's value without modifying the module.

It is class mysql::server that provides the avenue for configuring for an alternative MySQL fork. It offers numerous parameters by which you can configure all the details, but no once-for-all mechanism for setting a different MySQL personality. I think you will find that if you do that correctly then all the resource types will just work. In any case, you should not be declaring any resources of private resource types, nor overriding the properties of resources you do not declare.

An example covering almost the exact use case you've asked about is presented in the module docs as Install Percona Server on CentOS. Note that I have replicated the heading from the docs, but the word "Install" in it is a bit misleading. That should not only install the server, but set the stage for all the module's resource types to manage it.

I gather that you would prefer a simpler way to configure for a non-default fork, but the module does not presently offer one.