Fix random port being used for EPMD node

Fixes not being able to join a cluster from other nodes, because the
ports are not within the firewall range of allowed ports.

Co-authored-by: Greg Karékinian <greg@karekinian.com>

site-cookbooks/kosmos-ejabberd/recipes/default.rb

@@ -65,15 +65,13 @@ file "/opt/ejabberd/.hosts.erlang" do
   content ejabberd_hostnames.map{|h| "#{h}."}.join("\n")
 end
 
-ruby_block "configure ERLANG_NODE" do
-  block do
-    file = Chef::Util::FileEdit.new("/opt/ejabberd/conf/ejabberdctl.cfg")
-    file.search_file_replace_line(
-      %r{#ERLANG_NODE=ejabberd@localhost},
-      "ERLANG_NODE=ejabberd@#{node['name']}"
-    )
-    file.write_file
-  end
+template "/opt/ejabberd/conf/ejabberdctl.cfg" do
+  source    "ejabberdctl.cfg.erb"
+  mode      0644
+  owner     'ejabberd'
+  group     'ejabberd'
+  variables epmd_node_name: "ejabberd@#{node['name']}"
+  notifies :reload, "service[ejabberd]", :delayed
 end
 
 postgresql_data_bag_item = data_bag_item('credentials', 'postgresql')