[req] Support purge_ignore parameter to whitelist files from rsyslog.d's purging

[dekimsey]

Something akin to saz/puppet-sudo's purge_ignore parameter.

It's extraordinarily helpful in cases where some rpms, orchestration tools (ansible), or that-operator like to drop off conf files in rsyslog.d to tweak behavior. In my particular case I need ansible to manage a set of engineering-specific files and implementing the appropriate logic in puppet isn't feasible at the moment.

Thanks!

[saz]

You want a parameter, where you're able to pass in a list of file names relative to the rsyslog.d directory which are not purged or changed at all, right?

[dekimsey]

Yup! That's all.