Merge branch '1363-redo-mailroom-support' into 'master'

Use bundled `mail_room config` from gitlab-rails

Closes #1363

See merge request !1342

files/gitlab-cookbooks/gitlab/files/default/mail_room.yml

-:mailboxes:
-  <%
-    require "/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/mail_room" unless defined?(Gitlab::MailRoom)
-    config = Gitlab::MailRoom.config
-
-    if Gitlab::MailRoom.enabled?
-  %>
-  -
-    :host: <%= config[:host].to_json %>
-    :port: <%= config[:port].to_json %>
-    :ssl: <%= config[:ssl].to_json %>
-    :start_tls: <%= config[:start_tls].to_json %>
-    :email: <%= config[:user].to_json %>
-    :password: <%= config[:password].to_json %>
-    :idle_timeout: <%= config[:idle_timeout].to_json %>
-
-    :name: <%= config[:mailbox].to_json %>
-
-    :delete_after_delivery: true
-
-    :delivery_method: sidekiq
-    :delivery_options:
-      :redis_url: <%= config[:redis_url].to_json %>
-      :namespace: <%= Gitlab::Redis::SIDEKIQ_NAMESPACE %>
-      :queue: email_receiver
-      :worker: EmailReceiverWorker
-      <% if config[:sentinels] %>
-      :sentinels:
-        <% config[:sentinels].each do |sentinel| %>
-        -
-          :host: <%= sentinel[:host] %>
-          :port: <%= sentinel[:port] %>
-        <% end %>
-      <% end %>
-
-    :arbitration_method: redis
-    :arbitration_options:
-      :redis_url: <%= config[:redis_url].to_json %>
-      :namespace: <%= Gitlab::Redis::MAILROOM_NAMESPACE %>
-      <% if config[:sentinels] %>
-      :sentinels:
-        <% config[:sentinels].each do |sentinel| %>
-        -
-          :host: <%= sentinel[:host] %>
-          :port: <%= sentinel[:port] %>
-        <% end %>
-      <% end %>
-  <% end %>

files/gitlab-cookbooks/gitlab/recipes/mailroom.rb

@@ -17,15 +17,10 @@
 user = AccountHelper.new(node).gitlab_user
-mailroom_log_dir = node['gitlab']['mailroom']['log_directory']
-mail_room_config = File.join(node['gitlab']['gitlab-rails']['dir'], "etc", "mail_room.yml")
-# mail_room reads YAML-embedded ERB files, and this config file loads the GitLab Rails stack.
-# See: https://github.com/tpitale/mail_room/commit/d0cb7d2d9ecfb109f62f673dd907673777e04740
-# It does NOT work as a cookbook template at the moment.
-cookbook_file mail_room_config do
-  notifies :restart, 'service[mailroom]'
-end
+GITLAB_RAILS_SOURCE_DIR = '/opt/gitlab/embedded/service/gitlab-rails'.freeze
+mailroom_log_dir = node['gitlab']['mailroom']['log_directory']
+mail_room_config = File.join(GITLAB_RAILS_SOURCE_DIR, 'config', 'mail_room.yml')
 directory mailroom_log_dir do
   owner user
@@ -44,7 +39,7 @@ runit_service 'mailroom' do
 end
 if node['gitlab']['bootstrap']['enable']
-  execute "/opt/gitlab/bin/gitlab-ctl start mailroom" do
+  execute '/opt/gitlab/bin/gitlab-ctl start mailroom' do
     retries 20
   end
 end