logstash_version parameter

issue electrical#10

manifests/config.pp

@@ -35,7 +35,7 @@
 
   file_fragment { 'header':
     tag     => "beaver_config_${::fqdn}",
-    content => "[beaver]\n${beaver::config}\n",
+    content => "[beaver]\n${beaver::config}\nlogstash_version = ${::beaver::logstash_version}\n",
     order   => 10
   }
 

manifests/init.pp

@@ -107,15 +107,16 @@
 # * Richard Pijnenburg <mailto:[email protected]>
 #
 class beaver(
-  $ensure        = $beaver::params::ensure,
-  $autoupgrade   = $beaver::params::autoupgrade,
-  $status        = $beaver::params::status,
-  $version       = false,
-  $format        = 'json',
-  $respawn_delay = 3,
-  $max_failure   = 7,
-  $hostname      = $::fqdn,
-  $transport     = 'redis'
+  $ensure           = $beaver::params::ensure,
+  $autoupgrade      = $beaver::params::autoupgrade,
+  $status           = $beaver::params::status,
+  $version          = false,
+  $format           = 'json',
+  $respawn_delay    = 3,
+  $max_failure      = 7,
+  $hostname         = $::fqdn,
+  $transport        = 'redis',
+  $logstash_version = '0'
 ) inherits beaver::params {
 
   #### Validate parameters
@@ -137,6 +138,10 @@
     fail("\"${format}\" is not a valid format parameter value")
   }
 
+  if ! ($logstash_version in [ '0', '1' ]) {
+    fail("\"${logstash_version}\" is not a valid logstash_version parameter value")
+  }
+
   if ! is_numeric($respawn_delay) {
     fail("\"${respawn_delay}\" is not a valid respawn_delay parameter value")
   }