feat: split agent service/package from config

- split package/service from config so puppetservers agents can be
  managed in the same was as clients

site/profiles/manifests/puppet/agent.pp

@@ -0,0 +1,35 @@
+# profiles::puppet::agent
+# This class manages Puppet agent package and service.
+class profiles::puppet::agent (
+  String $puppet_version      = 'latest',
+) {
+
+  # Ensure the puppet-agent package is installed and locked to a specific version
+  package { 'puppet-agent':
+    ensure => $puppet_version,
+  }
+
+  # if puppet-version is anything other than latest, set a versionlock
+  $puppet_versionlock_ensure = $puppet_version ? {
+    'latest' => 'absent',
+    default  => 'present',
+  }
+  $puppet_versionlock_version = $puppet_version ? {
+    'latest' => undef,
+    default  => $puppet_version,
+  }
+  yum::versionlock{'puppet-agent':
+    ensure  => $puppet_versionlock_ensure,
+    version => $puppet_versionlock_version,
+  }
+
+  # Ensure the puppet service is running
+  service { 'puppet':
+    ensure     => 'running',
+    enable     => true,
+    hasrestart => true,
+    require    => Package['puppet-agent'],
+  }
+
+}
+