apache+mod_wsgi: Allow customizing wsgi process options

This change adds the missing capability to customize wsgi process
options, which is supported by the other modules.

Change-Id: Ia5cff022c1ad4f6402f2e9d4cd039059b176cd93

manifests/wsgi/apache.pp

@@ -98,6 +98,14 @@
 #   (Optional) Sends the virtualhost error log messages to syslog.
 #   Defaults to undef.
 #
+# [*custom_wsgi_process_options*]
+#   (Optional) gives you the opportunity to add custom process options or to
+#   overwrite the default options for the WSGI main process.
+#   eg. to use a virtual python environment for the WSGI process
+#   you could set it to:
+#   { python-path => '/my/python/virtualenv' }
+#   Defaults to {}
+#
 # [*headers*]
 #   (optional) Headers for the vhost.
 #   Defaults to undef
@@ -141,6 +149,7 @@ class placement::wsgi::apache (
   $error_log_file              = undef,
   $error_log_pipe              = undef,
   $error_log_syslog            = undef,
+  $custom_wsgi_process_options = {},
   $headers                     = undef,
   $request_headers             = undef,
   $vhost_custom_fragment       = undef,
@@ -178,6 +187,7 @@ class placement::wsgi::apache (
     wsgi_script_source          => $::placement::params::wsgi_script_source,
     headers                     => $headers,
     request_headers             => $request_headers,
+    custom_wsgi_process_options => $custom_wsgi_process_options,
     access_log_file             => $access_log_file,
     access_log_pipe             => $access_log_pipe,
     access_log_syslog           => $access_log_syslog,

releasenotes/notes/custom_wsgi_process_options-dad72a9b93b6f4d1.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The ``placement::wsgi::apache`` class now supports customizing wsgi process
+    options, by the new ``custom_wsgi_process_options`` parameter.

spec/classes/placement_wsgi_apache_spec.rb

@@ -49,6 +49,9 @@ describe 'placement::wsgi::apache' do
           :path                        => '/custom',
           :ssl                         => true,
           :workers                     => 10,
+          :custom_wsgi_process_options => {
+            'python_path' => '/my/python/path',
+          },
           :ssl_cert                    => '/etc/ssl/certs/placement.crt',
           :ssl_key                     => '/etc/ssl/private/placement.key',
           :ssl_chain                   => '/etc/ssl/certs/chain.pem',
@@ -94,6 +97,9 @@ describe 'placement::wsgi::apache' do
         :wsgi_script_source          => platform_params[:wsgi_script_source],
         :headers                     => ['set X-XSS-Protection "1; mode=block"'],
         :request_headers             => ['set Content-Type "application/json"'],
+        :custom_wsgi_process_options => {
+          'python_path' => '/my/python/path',
+        },
       )}
     end