Add logging class for controller nodes

As the first step to expose logs, we'll be using apache to server them
over HTTP.

Change-Id: I569b4fc58bae8aba4d3451f9eb544304cef89e5d
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

manifests/controller.pp

@@ -348,4 +348,7 @@ class infracloud::controller(
   class { '::nova::scheduler':
     enabled => true,
   }
+
+  ### Logging ###
+  class { '::infracloud::logs': }
 }

manifests/logs.pp

@@ -0,0 +1,38 @@
+# class: OpenStack Infra Logs
+class infracloud::logs(
+  $port = '80',
+  $vhost_name = $::fqdn,
+  $docroot = '/var/www/logs',
+) {
+  include ::apache
+
+  file { $docroot:
+    ensure  => directory,
+    require => Class['::apache'],
+  }
+
+  # Allow everybody to read neutron logs.
+  file { '/var/log/neutron':
+    ensure  => directory,
+    group   => adm,
+    mode    => '0644',
+    owner   => neutron,
+    require => Class['::neutron'],
+  }
+
+  file { "${docroot}/neutron":
+    ensure  => link,
+    target  => '/var/log/neutron',
+    group   => root,
+    owner   => root,
+    require => [
+      File[$docroot],
+      File['/var/log/neutron'],
+    ],
+  }
+
+  ::apache::vhost::custom { $vhost_name:
+    ensure  => present,
+    content => template('infracloud/logs.vhost.erb'),
+  }
+}

templates/logs.vhost.erb

@@ -0,0 +1,19 @@
+# ************************************
+# Managed by Puppet
+# ************************************
+
+<VirtualHost <%= vhost_name %>:<%= @port %>>
+    DocumentRoot <%= @docroot %>
+    <Directory <%= @docroot %>>
+        Options Indexes FollowSymLinks MultiViews
+        AllowOverride None
+        Require all granted
+    </Directory>
+
+    ErrorLog /var/log/<%= scope.lookupvar("::apache::params::apache_name") %>/<%= @name %>_error.log
+    LogLevel warn
+    CustomLog /var/log/<%= scope.lookupvar("::apache::params::apache_name") %>/<%= @name %>_access.log combined
+    ServerSignature Off
+
+    AddType text/plain .log
+</VirtualHost>