Add support for AppStream package installation

manifests/init.pp

@@ -196,6 +196,7 @@
   $passenger_package_ensure                                  = 'present',
   String[1] $passenger_package_name                          = $nginx::params::passenger_package_name,
   Optional[Stdlib::HTTPUrl] $repo_source                     = undef,
+  Optional[String[1]] $dnfmodule                             = undef,
   ### END Package Configuration ###
 
   ### START Service Configuation ###

manifests/package/redhat.pp

@@ -9,6 +9,7 @@
   $passenger_package_name   = $nginx::passenger_package_name
   $manage_repo              = $nginx::manage_repo
   $purge_passenger_repo     = $nginx::purge_passenger_repo
+  $dnfmodule                = $nginx::dnfmodule
 
   #Install the CentOS-specific packages on that OS, otherwise assume it's a RHEL
   #clone and provide the Red Hat-specific package. This comes into play when not
@@ -94,6 +95,14 @@
     }
   }
 
+  if $dnfmodule and fact('os.name') in ['RedHat', 'CentOS', 'VirtuozzoLinux'] and versioncmp(fact('os.release.full'), '8.0') >= 0 {
+    package { "nginx:${dnfmodule}":
+      ensure   => present,
+      before   => Package['nginx'],
+      provider => dnfmodule,
+    }
+  }
+
   package { 'nginx':
     ensure => $package_ensure,
     name   => $package_name,

spec/classes/nginx_spec.rb

@@ -139,6 +139,24 @@
             end
           end
 
+          context 'dnfmodule => 1.18' do
+            let(:params) { { dnfmodule: '1.18' } }
+
+            if %w[8].include?(facts.dig(:os, 'release', 'major'))
+              it { is_expected.to contain_package('nginx') }
+              it do
+                is_expected.to contain_package('nginx:1.18').with(
+                  'ensure'   => 'present',
+                  'before'   => Package['nginx'],
+                  'provider' => 'dnfmodule'
+                )
+              end
+            else
+              it { is_expected.to contain_package('nginx') }
+              it { is_expected.not_to contain_package('nginx:1.18') }
+            end
+          end
+
         when 'Debian'
           context 'using defaults' do
             it { is_expected.to contain_package('nginx') }