Enable unified mode for custom resources

[chef.git] / cookbooks / postgresql / resources / munin.rb

diff --git a/cookbooks/postgresql/resources/munin.rb b/cookbooks/postgresql/resources/munin.rb
index aa4f8c8e6b9fcb55bd571858c97a2b01a2a8fbe3..4b69d422411522cb51dd252ce8cfd589c7dd07d4 100644 (file)
--- a/cookbooks/postgresql/resources/munin.rb
+++ b/cookbooks/postgresql/resources/munin.rb
@@ -1,14 +1,14 @@
 #
-# Cookbook Name:: postgresql
+# Cookbook:: postgresql
 # Resource:: postgresql_munin
 #
-# Copyright 2015, OpenStreetMap Foundation
+# Copyright:: 2015, OpenStreetMap Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-# http://www.apache.org/licenses/LICENSE-2.0
+# https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -17,12 +17,49 @@
 # limitations under the License.
 #
 
-actions :create, :delete
+unified_mode true
+
 default_action :create
 
-attribute :name, :kind_of => String, :name_attribute => true
-attribute :cluster, :kind_of => String, :required => true
-attribute :database, :kind_of => String, :required => true
+property :munin, :kind_of => String, :name_property => true
+property :cluster, :kind_of => String, :required => true
+property :database, :kind_of => String, :required => true
+
+action :create do
+  cluster = node[:postgresql][:clusters] && node[:postgresql][:clusters][new_resource.cluster]
+  database = new_resource.database
+
+  if cluster
+    %w[cache connections locks querylength scans size transactions tuples].each do |plugin|
+      munin_plugin "postgres_#{plugin}_#{database}:#{suffix}" do
+        target "postgres_#{plugin}_"
+        conf "munin.erb"
+        conf_cookbook "postgresql"
+        conf_variables :port => cluster[:port]
+        restart_munin false
+      end
+    end
+  else
+    Chef::Log.info "Postgres cluster #{new_resource.cluster} not found"
+  end
+end
+
+action :delete do
+  database = new_resource.database
+
+  %w[cache connections locks querylength scans size transactions tuples].each do |plugin|
+    munin_plugin "postgres_#{plugin}_#{database}:#{suffix}" do
+      action :delete
+      restart_munin false
+    end
+  end
+end
+
+action_class do
+  def suffix
+    new_resource.cluster.tr("/", ":")
+  end
+end
 
 def after_created
   notifies :restart, "service[munin-node]"