On Monday, October 1, 2012 3:02:48 PM UTC-5, Duncan Hutty wrote:
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> I want puppet to manage some packages. On CentOS, puppet correctly
> uses the yum provider to manage rpms. Normally I can do:
>
> package { ...:
> ensure => present
> }
>
> but the rpms I want to install conflict with existing rpms.
>
> Ok, you say. so "ensure => present" on the ones I want and "ensure =>
> absent" on the ones to remove.
>
> How do I cope with the fact that there are other installed packages
> that depend on the ones I want to remove?
>
> The new packages will fulfill the dependency as well, so effectively I
> just want to force the transaction.
>
No, you *never* want to do that. As soon as you do, you are no longer
justified in having full confidence in your RPM database. Probably things
work out ok, if you've been careful, at least, but there are gotchas even
for the careful.
The proper way to do this from the command line is to use "yum shell" to
set up and run a transaction set that removes the unwanted RPMs and adds
the replacements in the same go. Or perhaps you can allow the dependant
packages to be uninstalled and reinstalled (supposing they are all managed
by Puppet, or you're willing to make them so).
>
> Effectively, I want puppet/yum to execute ``rpm -e --nodeps``; can I
> tell puppet to do it that way? Or do I need to find a workaround, such
> as an exec?
>
>
The Package type does not provide a mechanism to specify additional flags
for provider actions. Furthermore, it manages packages one by one. If you
need to automate this switch via Puppet, then you probably do need an Exec.
John
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