Add LDAP support to ejabberd

Users in the cn=greg,ou=users,dc=kosmos,dc=org group and the xmpp
attribute set to enabled will be able to log in using their userPassword

site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb

@@ -17,6 +17,13 @@ host_config:
     sql_database: "ejabberd"
     sql_username: "ejabberd"
     sql_password: "<%= @pgsql_password %>"
+    auth_method: [sql, ldap]
+    ldap_servers: ["<%= @ldap_server %>"]
+    ldap_rootdn: "<%= @ldap_username %>"
+    ldap_password: "<%= @ldap_password %>"
+    ldap_encrypt: <%= @ldap_encryption_type %>
+    ldap_base: "<%= @ldap_base %>"
+    ldap_filter: "(&(objectClass=account)(xmpp=enabled))"
   "5apps.com":
     sql_type: pgsql
     sql_server: "localhost"