onddo/zookeeper_bridge-cookbook

# encoding: UTF-8
#
# Cookbook Name:: zookeeper_bridge
# Recipe:: chef_handler
# Author:: Xabier de Zuazo (<xabier@zuazo.org>)
# Copyright:: Copyright (c) 2014 Onddo Labs, SL.
# License:: Apache License, Version 2.0
#
# 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.
#

# Notice: include this recipe near the beginning of the node's run list so
# that the start handler can take effect early on.

include_recipe 'zookeeper_bridge::depends'

# Handler configuration options
argument_array = [
  server: node['zookeeper_bridge']['server'].to_s,
  znode: node['zookeeper_bridge']['chef_handler']['znode']
]

zookeeper_handler_path =
  if Gem::Specification.respond_to?('find_by_name')
    Gem::Specification.find_by_name('chef-handler-zookeeper').lib_dirs_glob
  else
    Gem.all_load_paths.grep(/chef-handler-zookeeper/).first
  end

# Then activate the handler with the `chef_handler` LWRP
chef_handler 'Chef::Handler::ZookeeperHandler' do
  source "#{zookeeper_handler_path}/chef/handler/zookeeper"
  arguments argument_array
  supports start: true, report: true, exception: true
  action :nothing
end.run_action(:enable)

# Based on code from chef-sensu-handler cookbook
ruby_block 'trigger_start_handlers' do
  block do
    require 'chef/run_status'
    require 'chef/handler'

    # A bit tricky, required by the default start.json.erb template to have
    # access to node
    Chef::Handler.run_start_handlers(self)
  end
  action :nothing
end.run_action(:run)