Silence successful elasticsearch runs

java7-runtime-headless is an empty package that can never be
installed, so it attempts to install every time. Replace it with
openjdk-7-jre-headless, which is the real package.

Also, add a refreshonly on the exec for checking the diff, because
it runs every time as well.

Change-Id: I5195d27ae90cd7f9f3e20d92aca43d7b8d0e504a

modules/elasticsearch/manifests/init.pp

@@ -20,7 +20,7 @@ class elasticsearch (
   $es_template_config = {}
 ) {
   # install java runtime
-  package { 'java7-runtime-headless':
+  package { 'openjdk-7-jre-headless':
     ensure => present,
   }
 
@@ -53,9 +53,11 @@ class elasticsearch (
   }
 
   exec { 'check_elasticsearch_sha1':
-    command => "diff /tmp/elasticsearch-${version}.deb.sha1.txt /tmp/elasticsearch-${version}.deb.sha1.gen",
-    path    => '/bin:/usr/bin',
-    require => [
+    command     => "diff /tmp/elasticsearch-${version}.deb.sha1.txt /tmp/elasticsearch-${version}.deb.sha1.gen",
+    path        => '/bin:/usr/bin',
+    subscribe   => Exec['get_elasticsearch_deb'],
+    refreshonly => true,
+    require     => [
       Exec['gen_elasticsearch_deb_sha1'],
       Exec['get_elasticsearch_deb_sha1'],
     ]
@@ -66,10 +68,9 @@ class elasticsearch (
     ensure    => latest,
     source    => "/tmp/elasticsearch-${version}.deb",
     provider  => 'dpkg',
-    subscribe => Exec['get_elasticsearch_deb'],
+    subscribe => Exec['get_elasticsearch_sha1'],
     require   => [
       Package['java7-runtime-headless'],
-      Exec['check_elasticsearch_sha1'],
       File['/etc/elasticsearch/elasticsearch.yml'],
       File['/etc/elasticsearch/default-mapping.json'],
       File['/etc/default/elasticsearch'],