Php-fpm Integration - enable use of fastcgi (DataDog#616)

Add use_fastcgi parameter.

Author: ChannoneArif-nbcuni

manifests/integrations/php_fpm.pp

@@ -15,6 +15,9 @@
 #   $tags
 #        Optional array of tags
 #
+#   $use_fastcgi
+#        Use fastcgi to get stats.  Default: false
+#
 # Sample Usage:
 #
 #  class { 'datadog_agent::integrations::php_fpm' :
@@ -29,7 +32,8 @@
   $ping_reply       = 'pong',
   $http_host        = undef,
   $tags             = [],
-  $instances        = undef
+  $instances        = undef,
+  $use_fastcgi      = 'false'
 ) inherits datadog_agent::params {
   include datadog_agent
 
@@ -40,6 +44,7 @@
       'ping_url' => $ping_url,
       'ping_reply' => $ping_reply,
       'tags' => $tags,
+      'use_fastcgi' => $use_fastcgi,
     }]
   } else {
     $_instances = $instances

templates/agent-conf.d/php_fpm.yaml.erb

@@ -6,6 +6,8 @@ instances:
 <%- (Array(@_instances)).each do |instance| -%>
   - # Get metrics from your FPM pool with this URL
     status_url: <%= instance['status_url'] %>
+    # Get metrics using fastcgi
+    use_fastcgi: <%= instance['use_fastcgi'] %>
     # Get a reliable service check of your FPM pool with that one
     ping_url: <%= instance['ping_url'] %>
     # Set the expected reply to the ping.