redis: Make the append only mode optional

redis/manifests/init.pp

@@ -9,7 +9,10 @@
 #   $password:
 #       Optional password for client connections.
 #
-class redis($datadir="", $password="") {
+#   $appendonly:
+#       Enable append only mode. Defaults to false.
+#
+class redis($datadir="", $password="", $appendonly=false) {
 
     package { "redis":
         ensure => installed,

redis/templates/local.conf.erb

@@ -1,6 +1,6 @@
 bind 127.0.0.1
 dir /srv/redis
-appendonly yes
+appendonly <% if @appendonly == true %>yes<% else %>no<% end %>
 <% if @password -%>
 requirepass <%= @password %>
 <% end -%>