[PRD-999] Add custom function and use Puppet Host

Add nodes_to_hosts converter function
Rewrite manifest to use Puppet builtin Host type
Trigger create_resources for Host generation

deployment/puppet/l23network/lib/puppet/parser/functions/nodes_to_hosts.rb

@@ -0,0 +1,21 @@
+#
+# array_or_string_to_array.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:nodes_to_hosts, :type => :rvalue, :doc => <<-EOS
+              convert nodes array passed from Astute into
+              hash for puppet `host` create_resources call
+    EOS
+  ) do |args|
+    hosts=Hash.new
+    nodes=args[0]
+    nodes.each do |node|
+      hosts[node['fqdn']]={:ip=>node['internal_address'],:host_aliases=>[node['name']]}
+      notice("Generating host entry #{node['fqdn']} #{node['internal_address']} #{node['name']}")
+    end
+    return hosts
+  end
+end
+
+# vim: set ts=2 sw=2 et :

deployment/puppet/l23network/manifests/hosts_file.pp

@@ -2,26 +2,13 @@ class l23network::hosts_file ($hosts,$hosts_file="/etc/hosts") {
 
 #Move original hosts file
 
-exec {'copy hosts file':
-  command => "cp ${hosts_file} /etc/hosts.header"
-}
-#
-concat{ $hosts_file:
-  owner => root,
-  group => root,
-  mode  => '0644'
-}
-
-concat::fragment{"hosts_local":
-  target => $hosts_file,
-  ensure => "/etc/hosts.header",
-  order  => 01,
-}
-concat::fragment{"added_hosts":
-  target  => $hosts_file,
-  content => template("l23network/hosts.erb"),
-  order   => 02
+$hosts=nodes_to_hosts($nodes)
+Host {
+    ensure   => present,
+    target => $hosts_file
 }
+notify{"$hosts":}
+create_resources(host,$hosts)
 }