Prior to this commit, we would manage the puppet-agent version
on any node that was classified with the puppet_agent class.

After this commit, we now check to see if the node is a PE infra
node and if so print a message saying we're not going to do anything
because PE infra nodes have a specific version of puppet-agent
on them for a reason.

You would not, for instance, want your compile master to get its
agent downgraded right after you completed an upgrade of your PE
installation.

…_nodes

(MODULES-5230) Do not manage PA version on PE infra nodes

This commit prepares the module for a version 1.6.1 release.

(MODULES-7167) Prepare for 1.6.1 release

The module metadata specifies a minimum of Puppet 4.7 therefore testing on 3.8
is no longer required.  This commit removes the redundant testing cell.

(PE-23722) Update metadata to add Ubuntu 18.04

…where

[MODULES-4195] Install AIX 6.1 RPMs on all AIX versions for puppet6

When the upgrade was attempted, the update command would not run
because it was looking for the wrong package name (el7 vs. redhatfips7).
This updates the name of the package to update to redhatfips7.

(MODULES-7329) Fix update failure for FIPS

The skip_if_unavailable yum option allows unrelated yum package
management to continue in the event that the agent repository
is unavailble for any reason. It is defaulted to 'absent', which means
the option is not set in the repository file.

…vailable-to-yumrepo

(MODULES-4424) Add skip_if_unavailable to yumrepo resource

Previously in commit a658766 the puppet_agent module was changed to not do
anything if ran on a Puppet Master.  However the fact used uses the "newer"
$facts variable which does not exist in Puppet 3.8, which the 1.x series
supports.  This commit changes the fact to the legacy variable name.  Note that
this commit should NOT be merged into the 2.x series as this no longer supports
3.x and therefore is not an issue.

The POSIX ruby puppet module gem introduced Puppet Strings 2.0 which requires
Ruby 2.1.9, however we still test on Ruby 2.1.0 for older puppet gems.  This
commit pins the the posix module to 0.3.3.

This reverts commit 7ffa68c.

Puppet 3.8 testing is still required.  The original error was related to a
new gem being added with ruby restrictions.

Previously travis was throwing Gem dependency errors on older ruby versions due
to beaker, and it's associated gems.  This commit sets the BEAKER_VERSION
environment variable which pins the Beaker gem to version 3.0 so that bundle
install complete.  Note this does not affect the actual testing as beaker is
not used, only the bundling was failing.

Previously we would test the fact pe_server_version however in Puppet 3.x the
rspec-puppet helper is not working.  This commit modifies the test to only run
on Puppet 4.x tests and that test coverage is enough to cover Puppet 3.x.  This
commit should not be merged up to the 2.x series.

(MODULES-5230) Use legacy fact variables

This commit prepares the module again for a 1.6.1 release.

(MODULES-7167) Prepare module for 1.6.1 release