Add Apache WSGI logging parameters for pipe/syslog

Add parameters for advanced logging configurations in Apache to
support piped logging and support for syslog (via mod_syslog
available in Apache >= 2.5.0)

Co-Authored-By: Andy Botting <andy@andybotting.com>
Change-Id: Iaf3e13cbda1cf5fe25f8c4b9fb945f13fa4f30f3

manifests/wsgi/apache.pp

@@ -56,6 +56,14 @@
 #     The log file name for the virtualhost.
 #     Optional. Defaults to undef.
 #
+#   [*access_log_pipe*]
+#     Specifies a pipe where Apache sends access logs for the virtualhost.
+#     Optional. Defaults to undef.
+#
+#   [*access_log_syslog*]
+#     Sends the virtualhost access log messages to syslog.
+#     Optional. Defaults to undef.
+#
 #   [*access_log_format*]
 #     The log format for the virtualhost.
 #     Optional. Defaults to undef.
@@ -64,6 +72,14 @@
 #     The error log file name for the virtualhost.
 #     Optional. Defaults to undef.
 #
+#   [*error_log_pipe*]
+#     Specifies a pipe where Apache sends error logs for the virtualhost.
+#     Optional. Defaults to undef.
+#
+#   [*error_log_syslog*]
+#     Sends the virtualhost error log messages to syslog.
+#     Optional. Defaults to undef.
+#
 #   [*wsgi_process_display_name*]
 #     (optional) Name of the WSGI process display-name.
 #     Defaults to undef
@@ -122,8 +138,12 @@ class watcher::wsgi::apache (
   $threads                     = 1,
   $priority                    = 10,
   $access_log_file             = undef,
+  $access_log_pipe             = undef,
+  $access_log_syslog           = undef,
   $access_log_format           = undef,
   $error_log_file              = undef,
+  $error_log_pipe              = undef,
+  $error_log_syslog            = undef,
   $custom_wsgi_process_options = {},
   $headers                     = undef,
   $request_headers             = undef,
@@ -160,9 +180,13 @@ class watcher::wsgi::apache (
     wsgi_script_source          => $::watcher::params::watcher_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,
     access_log_format           => $access_log_format,
     error_log_file              => $error_log_file,
-    custom_wsgi_process_options => $custom_wsgi_process_options,
+    error_log_pipe              => $error_log_pipe,
+    error_log_syslog            => $error_log_syslog,
   }
 }

releasenotes/notes/httpd-logs-piped-syslog-bab044bf788d548d.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Added parameters for advanced configuration of httpd access and error log
+    destinations including piped logging and syslog (see `mod_syslog`). Note
+    that mod_syslog requires Apache2 >= 2.5.0.

spec/classes/watcher_wsgi_apache_spec.rb

@@ -22,9 +22,14 @@ describe 'watcher::wsgi::apache' do
         :wsgi_script_source          => platform_params[:wsgi_script_source],
         :headers                     => nil,
         :request_headers             => nil,
-        :access_log_file             => nil,
-        :access_log_format           => nil,
         :custom_wsgi_process_options => {},
+        :access_log_file             => nil,
+        :access_log_pipe             => nil,
+        :access_log_syslog           => nil,
+        :access_log_format           => nil,
+        :error_log_file              => nil,
+        :error_log_pipe              => nil,
+        :error_log_syslog            => nil,
       )}
     end
 
@@ -37,9 +42,6 @@ describe 'watcher::wsgi::apache' do
           :ssl                         => true,
           :wsgi_process_display_name   => 'watcher',
           :workers                     => 37,
-          :access_log_file             => '/var/log/httpd/access_log',
-          :access_log_format           => 'some format',
-          :error_log_file              => '/var/log/httpd/error_log',
           :custom_wsgi_process_options => {
             'python_path' => '/my/python/path',
           },
@@ -66,14 +68,75 @@ describe 'watcher::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"'],
-        :access_log_file             => '/var/log/httpd/access_log',
-        :access_log_format           => 'some format',
-        :error_log_file              => '/var/log/httpd/error_log',
         :custom_wsgi_process_options => {
           'python_path' => '/my/python/path',
         },
       )}
     end
+
+    context 'with custom access logging' do
+      let :params do
+        {
+          :access_log_format => 'foo',
+          :access_log_syslog => 'syslog:local0',
+          :error_log_syslog  => 'syslog:local1',
+        }
+      end
+
+      it { should contain_openstacklib__wsgi__apache('watcher_wsgi').with(
+        :access_log_format => params[:access_log_format],
+        :access_log_syslog => params[:access_log_syslog],
+        :error_log_syslog  => params[:error_log_syslog],
+      )}
+    end
+
+    context 'with access_log_file' do
+      let :params do
+        {
+          :access_log_file => '/path/to/file',
+        }
+      end
+
+      it { should contain_openstacklib__wsgi__apache('watcher_wsgi').with(
+        :access_log_file => params[:access_log_file],
+      )}
+    end
+
+    context 'with access_log_pipe' do
+      let :params do
+        {
+          :access_log_pipe => 'pipe',
+        }
+      end
+
+      it { should contain_openstacklib__wsgi__apache('watcher_wsgi').with(
+        :access_log_pipe => params[:access_log_pipe],
+      )}
+    end
+
+    context 'with error_log_file' do
+      let :params do
+        {
+          :error_log_file => '/path/to/file',
+        }
+      end
+
+      it { should contain_openstacklib__wsgi__apache('watcher_wsgi').with(
+        :error_log_file => params[:error_log_file],
+      )}
+    end
+
+    context 'with error_log_pipe' do
+      let :params do
+        {
+          :error_log_pipe => 'pipe',
+        }
+      end
+
+      it { should contain_openstacklib__wsgi__apache('watcher_wsgi').with(
+        :error_log_pipe => params[:error_log_pipe],
+      )}
+    end
   end
 
   on_supported_os({