#
# Cookbook Name:: openstack-ops-messaging
# Recipe:: rabbitmq-server
#
# Copyright 2013, Opscode, Inc.
# Copyright 2013, AT&T Services, Inc.
# Copyright 2013, Craig Tracey <craigtracey@gmail.com>
#
# 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.
#

class ::Chef::Recipe
  include ::Openstack
end

rabbit_server_role = node["openstack"]["mq"]["server_role"]
user = node["openstack"]["mq"]["user"]
pass = user_password user
vhost = node["openstack"]["mq"]["vhost"]
bind_interface = node["openstack"]["mq"]["bind_interface"]
listen_address = address_for node["openstack"]["mq"]["bind_interface"]

# Used by OpenStack#rabbit_servers/#rabbit_server
node.set["openstack"]["mq"]["listen"] = listen_address

node.override["rabbitmq"]["port"] = node["openstack"]["mq"]["port"]
node.override["rabbitmq"]["address"] = listen_address
node.override["rabbitmq"]["default_user"] = user
node.override["rabbitmq"]["default_pass"] = pass
node.override["rabbitmq"]["use_distro_version"] = true

# Clustering
if node["openstack"]["mq"]["cluster"]
  node.override["rabbitmq"]["cluster"] = node["openstack"]["mq"]["cluster"]
  node.override["rabbitmq"]["erlang_cookie"] = service_password "rabbit_cookie"
  qs = "roles:#{rabbit_server_role} AND chef_environment:#{node.chef_environment}"
  node.override["rabbitmq"]["cluster_disk_nodes"] = search(:node, qs).map do |n|
    "#{user}@#{n['hostname']}"
  end
end

include_recipe "rabbitmq"
include_recipe "rabbitmq::mgmt_console"

rabbitmq_user "remove rabbit guest user" do
  user "guest"
  action :delete

  not_if { user == "guest" }
end

rabbitmq_user "add openstack rabbit user" do
  user user
  password pass

  action :add
end

rabbitmq_vhost "add openstack rabbit vhost" do
  vhost vhost

  action :add
end

rabbitmq_user "set openstack user permissions" do
  user user
  vhost vhost
  permissions '.* .* .*'
  action :set_permissions
end

# Necessary for graphing.
rabbitmq_user "set rabbit administrator tag" do
  user user
  tag "administrator"

  action :set_tags
end

# Remove the mnesia database. This is necessary so the nodes
# in the cluster will be able to recognize one another.
# TODO(retr0h): This should be handled upstream, and in a
# non-distro specific way (e.g.) `rabbitmqctl reset`.
execute "Reset mnesia" do
  cwd "/var/lib/rabbitmq"
  command <<-EOH.gsub(/^\s+/, "")
    service rabbitmq-server stop;
    rm -rf mnesia/;
    touch .reset_mnesia_database;
    service rabbitmq-server start
  EOH

  not_if { ::File.exists? "/var/lib/rabbitmq/.reset_mnesia_database" }
  only_if { node["openstack"]["mq"]["cluster"] }
end