Hi Fraser,
On Tue, Sep 29, 2015 at 12:04 PM, Fraser Goffin <goff...@gmail.com> wrote:
> Puppet v 4.2.x
> Platform: Windows
>
> I'm using the Atlassian sonatype_nexus Puppet module. It allows you to
> configure Nexus via its RESTful API using a number of abstractions from the
> module. However, ... there is a requirement for a few additional Ruby gems
> to be installed, the key one being a rest_client gem and a number of its
> dependents. At this time the module doesn't provide installation for these
> but its pretty easy to copy them over to the correct location in Puppet
> using a file resource. Something along these lines :-
>
> class sonatype_nexus::windows::install {
> ...
> file { 'copy_gems':
> path => 'c:/apps/puppet/sys/ruby/lib/',
> source => "puppet:///modules/${source_module_name}",
> recurse => true,
> }
>
> where the calling module contains a files folder with an appropriate
> structure to that under puppet ... e.g :-
>
> .../modules/sonatype_nexus/files/ruby/gems/2.1.0/....
>
> OK, so no problem there then ... well actually there is.This file copy is
> (was) happening in an 'install' class and later on in another 'config'
> classI was using the resources that need those gems, say .. something like
> this to define a new Nexus proxied repository :-
>
> class sonatype_nexus::windows::postconfig {
>
> nexus_repository { 'myrepo':
> label => 'MyRepo',
> provider_type => 'maven2',
> type => 'proxy',
> policy => 'release',
> ...
> }
>
> Unfortunately, when the catalogue is compiled Puppet spots the fact that
> this resource type needs access to the rest_client gem and since it can't
> find it on the system (this being a fresh VM) it throws an exception even
> though it will be there by the time this be of Puppet code runs because of
> the earlier copy and the dependencies established between the install and
> 'postconfig' classes :-
>
> class sonatype_nexus(
> ...
> Class["::sonatype_nexus::${::osfamily}::install"] ->
> Class["::sonatype_nexus::${::osfamily}::preconfig"] ->
> Class["::sonatype_nexus::${::osfamily}::service"] ->
> Class["::sonatype_nexus::${::osfamily}::postconfig"]
>
> So, for now, I have had to separate out the copy of the gems and then the
> install and config of Nexus into two separate Puppet runs. It works fine,
> but .... is there a way of getting it to work with just a single run ?
>
> Kind Regards
>
> Fraser.
>
>
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This issue came up when discussing a puppet PR[1]. It turned out to be a
bug in the nexus_rest module:
https://forge.puppetlabs.com/atlassian/nexus_rest, which looks like they
fixed in 0.4.3[2].
The problem was that previously the providers were not confined and would
try to require the rest_client gem directly. Now, the providers are
confined based on a provider feature, which allows puppet to defer
evaluation of nexus related resources until after the gem is installed, so
that both can occur in the same run.
Josh
[1] https://github.com/puppetlabs/puppet/pull/4220
[2]
https://bitbucket.org/atlassian/puppet-module-nexus_rest/pull-requests/48/issue-4-confine-rest-client-as-a-feature/diff
--
Josh Cooper
Developer, Puppet Labs
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