#
# Cookbook Name:: munin
# Recipe:: server
#
# Copyright 2010, 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

include_recipe "apache"

package "munin"

expiry_time = 14 * 86400

clients = search(:node, "recipes:munin").select { |n| n[:munin] }.sort_by { |n| n[:hostname] }
frontends = search(:node, "recipes:web\\:\\:frontend").reject { |n| Time.now - Time.at(n[:ohai_time]) > expiry_time }.map { |n| n[:hostname] }.sort
backends = search(:node, "recipes:web\\:\\:backend").reject { |n| Time.now - Time.at(n[:ohai_time]) > expiry_time }.map { |n| n[:hostname] }.sort
tilecaches = search(:node, "roles:tilecache").reject { |n| Time.now - Time.at(n[:ohai_time]) > expiry_time }.sort_by { |n| n[:hostname] }.map do |n|
  { :name => n[:hostname], :interface => n.interfaces(:role => :external).first[:interface] }
end
renderers = search(:node, "roles:tile").reject { |n| Time.now - Time.at(n[:ohai_time]) > expiry_time }.sort_by { |n| n[:hostname] }.map do |n|
  { :name => n[:hostname], :interface => n.interfaces(:role => :external).first[:interface] }
end

template "/etc/munin/munin.conf" do
  source "munin.conf.erb"
  owner "root"
  group "root"
  mode 0644
  variables :expiry_time => expiry_time, :clients => clients, :frontends => frontends, :backends => backends, :tilecaches => tilecaches, :renderers => renderers
end

apache_site "munin.openstreetmap.org" do
  template "apache.erb"
end

munin_plugin "munin_stats"
munin_plugin "munin_update"