Read facts from /etc/yum.repos.d/redhat.repo instead of subscription-manager

[kallies]

As stated by @alexjfisher in #53 subscription-manager might lead to long puppet runs and - in case RHSM/Satellite 6 is down - might lead to issues when relying on the resulting facts:

If the Satellite server (or RHSM) is not accessible or sends http errorcodes.

1. Not accessible: Puppet runs are stale until subscription-manager times out (default timeout is 180s per http request and subscription-manager repos --list-enabled triggers ~7 requests)
2. Satellite/RHSM frontend answers with http errorcode: fact returns empty array -> if someone (like we do) evaluates this fact to enable repos, Puppet tries to enable all repos (again - not a big issue but def. not a nice behaviour).

We were thinking about a caching mechanism which addresses these two issues.

Instead of calling subscription-manager or yum the file /etc/yum.repos.d/redhat.repo should be evaluated

".. or search for enabled = 1 and all sections without enabled

This should also address both issues.

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: >=4
• Ruby: generic
• Distribution: RHEL
• Module version: 3.2.1-rc0/master

How to reproduce (e.g Puppet code you use)

As described in README.md

What are you seeing

Slow puppet runs (>10s for subscription-manager), issues when Satellite 6 is not available or - even worse - partially available.