Use httpd::mod instead of httpd_mod

httpd::mod is a high-level wrapper around httpd_mod,
and, since it is used, e.g. in puppet-jenkins and puppet-zuul,
it should be uniform across all puppet projects,
to be able to properly detect
whether Httpd_mod instance defined, like below:

if (! defined(Httpd::Mod['rewrite'])) {
    httpd::mod { 'rewrite': ensure => present }
}

Change-Id: I2b453b6f15d80bba9b1c29bc0d35651cfae05427
Depends-On: I69e7f9c54d06d7f98b50fdc7d5a67dd10e3e0050

modules/openstack_project/manifests/cacti.pp

@@ -14,9 +14,11 @@ class openstack_project::cacti (
 
   include ::httpd
 
-  httpd_mod { 'rewrite':
+  if ! defined(Httpd::Mod['rewrite']) {
+    httpd::mod { 'rewrite':
         ensure => present,
     }
+  }
 
   package { 'cacti':
     ensure => present,

modules/openstack_project/manifests/eavesdrop.pp

@@ -140,9 +140,11 @@ class openstack_project::eavesdrop (
     require => Class['statusbot'],
   }
 
-  httpd_mod { 'headers':
+  if ! defined(Httpd::Mod['headers']) {
+    httpd::mod { 'headers':
         ensure => present,
     }
+  }
 
   class { 'project_config':
     url  => $project_config_repo,

modules/openstack_project/manifests/grafana.pp

@@ -70,15 +70,23 @@ class openstack_project::grafana (
     template => 'openstack_project/grafana.vhost.erb',
   }
 
-  httpd_mod { 'rewrite':
+  if ! defined(Httpd::Mod['rewrite']) {
+    httpd::mod { 'rewrite':
         ensure => present,
     }
-  httpd_mod { 'proxy':
+  }
+
+  if ! defined(Httpd::Mod['proxy']) {
+    httpd::mod { 'proxy':
         ensure => present,
     }
-  httpd_mod { 'proxy_http':
+  }
+
+  if ! defined(Httpd::Mod['proxy_http']) {
+    httpd::mod { 'proxy_http':
         ensure => present,
     }
+  }
 
   class { '::project_config':
     url  => $project_config_repo,

modules/openstack_project/manifests/static.pp

@@ -31,15 +31,23 @@ class openstack_project::static (
   include ::httpd
   include ::httpd::mod::wsgi
 
-  httpd_mod { 'rewrite':
+  if ! defined(Httpd::Mod['rewrite']) {
+    httpd::mod { 'rewrite':
         ensure => present,
     }
-  httpd_mod { 'proxy':
+  }
+
+  if ! defined(Httpd::Mod['proxy']) {
+    httpd::mod { 'proxy':
         ensure => present,
     }
-  httpd_mod { 'proxy_http':
+  }
+
+  if ! defined(Httpd::Mod['proxy_http']) {
+    httpd::mod { 'proxy_http':
         ensure => present,
     }
+  }
 
   if ! defined(File['/srv/static']) {
     file { '/srv/static':

modules/openstack_project/manifests/status.pp

@@ -28,15 +28,23 @@ class openstack_project::status (
 
   include ::httpd
 
-  httpd_mod { 'rewrite':
+  if ! defined(Httpd::Mod['rewrite']) {
+    httpd::mod { 'rewrite':
         ensure => present,
     }
-  httpd_mod { 'proxy':
+  }
+
+  if ! defined(Httpd::Mod['proxy']) {
+    httpd::mod { 'proxy':
         ensure => present,
     }
-  httpd_mod { 'proxy_http':
+  }
+
+  if ! defined(Httpd::Mod['proxy_http']) {
+    httpd::mod { 'proxy_http':
         ensure => present,
     }
+  }
 
   file { '/srv/static':
     ensure => directory,