Use mod_proxy_http2

This aims to use mod_proxy_http2, which utilizes HTTP/2 to a backend
server. It depends on a feature released in puppetlabs-apache 10.1.1.

manifests/init.pp

@@ -120,6 +120,7 @@
   $foreman_url = $foreman_proxy::foreman_base_url
   $foreman_host = foreman_proxy_content::host_from_url($foreman_url)
   $reverse_proxy_real = $pulpcore_mirror or $reverse_proxy
+  $proxy_foreman_url = $foreman_url.regsubst('https://', 'h2://')
 
   # TODO: make it configurable
   # https://github.com/theforeman/puppet-foreman_proxy_content/issues/407
@@ -137,7 +138,7 @@
 
   if $reverse_proxy_real {
     foreman_proxy_content::reverse_proxy { "rhsm-pulpcore-https-${reverse_proxy_port}":
-      path_url_map => { '/' => "${foreman_url}/" },
+      path_url_map => { '/' => "${proxy_foreman_url}/" },
       port         => $reverse_proxy_port,
       priority     => '10',
       before       => Class['pulpcore::apache'],
@@ -150,8 +151,8 @@
     if $rhsm_port != $reverse_proxy_port {
       foreman_proxy_content::reverse_proxy { $pulpcore_https_vhost_name:
         path_url_map => {
-          $rhsm_path     => "${foreman_url}${rhsm_path}",
-          $insights_path => "${foreman_url}${insights_path}",
+          $rhsm_path     => "${proxy_foreman_url}${rhsm_path}",
+          $insights_path => "${proxy_foreman_url}${insights_path}",
         },
         port         => $rhsm_port,
         priority     => '10',

manifests/reverse_proxy.pp

@@ -15,7 +15,7 @@
 # @param priority
 #   Sets the relative load-order for Apache HTTPD VirtualHost configuration files. See Apache::Vhost
 define foreman_proxy_content::reverse_proxy (
-  Hash[Stdlib::Unixpath, Stdlib::Httpurl] $path_url_map = { '/' => "${foreman_proxy_content::foreman_url}/" },
+  Hash[Stdlib::Unixpath, String[1]] $path_url_map = { '/' => "${foreman_proxy_content::foreman_url}/" },
   Stdlib::Port $port = $foreman_proxy_content::reverse_proxy_port,
   Variant[Array[String], String, Undef] $ssl_protocol = undef,
   Hash[String, Any] $vhost_params = {},
@@ -31,7 +31,7 @@
 
   $vhost_name = $title
 
-  $proxy_pass = $path_url_map.map |Stdlib::Unixpath $path, Stdlib::Httpurl $url| {
+  $proxy_pass = $path_url_map.map |$path, $url| {
     {
       'path'         => $path,
       'url'          => $url,

metadata.json

@@ -22,7 +22,7 @@
     },
     {
       "name": "puppetlabs/apache",
-      "version_requirement": ">= 2.0.0 < 12.0.0"
+      "version_requirement": ">= 10.1.1 < 12.0.0"
     },
     {
       "name": "theforeman/foreman_proxy",

spec/classes/foreman_proxy_content_spec.rb

@@ -201,14 +201,14 @@
         end
         it do
           is_expected.to contain_foreman_proxy_content__reverse_proxy('rhsm-pulpcore-https-8443')
-            .with(path_url_map: {'/' => 'https://foo.example.com/'})
+            .with(path_url_map: {'/' => 'h2://foo.example.com/'})
             .with(port: 8443)
             .with(priority: '10')
             .that_comes_before('Class[pulpcore::apache]')
         end
         it do
           is_expected.to contain_foreman_proxy_content__reverse_proxy('rhsm-pulpcore-https-443')
-            .with(path_url_map: {'/rhsm' => 'https://foo.example.com/rhsm', '/redhat_access' => 'https://foo.example.com/redhat_access'})
+            .with(path_url_map: {'/rhsm' => 'h2://foo.example.com/rhsm', '/redhat_access' => 'h2://foo.example.com/redhat_access'})
             .with(port: 443)
             .with(priority: '10')
             .that_comes_before('Class[pulpcore::apache]')