Compartmentalizing RabbitMQ

Presently all services use the single root virtual host within RabbitMQ
and while this is “OK” for small to mid sized deployments however it
would be better to divide services into logical resource groups within
RabbitMQ which will bring with it additional security. This change set
provides OSAD better compartmentalization of consumer services that use
RabbitMQ.

UpgradeImpact
DocImpact
Change-Id: I6f9d07522faf133f3c1c84a5b9046a55d5789e52
Implements: blueprint compartmentalize-rabbitmq

defaults/main.yml

@@ -39,6 +39,10 @@ neutron_db_max_overflow: 20
 neutron_db_pool_size: 120
 neutron_db_pool_timeout: 30
 
+## RabbitMQ info
+neutron_rabbitmq_userid: neutron
+neutron_rabbitmq_vhost: /neutron
+
 ## Plugins
 neutron_plugin_core: neutron.plugins.ml2.plugin.Ml2Plugin
 # Other plugins can be added to the system by simply extending the list `neutron_plugin_base`.

tasks/neutron_messaging_setup.yml

@@ -0,0 +1,37 @@
+---
+# Copyright 2014, Rackspace US, Inc.
+#
+# 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.
+
+- name: Ensure Rabbitmq vhost
+  rabbitmq_vhost:
+    name: "{{ neutron_rabbitmq_vhost }}"
+    state: "present"
+  delegate_to: "{{ groups['rabbitmq_all'][0] }}"
+  tags:
+    - neutron-rabbitmq
+    - neutron-rabbitmq-vhost
+
+- name: Ensure rabbitmq user
+  rabbitmq_user:
+    user: "{{ neutron_rabbitmq_userid }}"
+    password: "{{ neutron_rabbitmq_password }}"
+    vhost: "{{ neutron_rabbitmq_vhost }}"
+    configure_priv: ".*"
+    read_priv: ".*"
+    write_priv: ".*"
+    state: "present"
+  delegate_to: "{{ groups['rabbitmq_all'][0] }}"
+  tags:
+    - neutron-rabbitmq
+    - neutron-rabbitmq-user

tasks/neutron_pre_install.yml

@@ -92,3 +92,7 @@
   tags:
     - sudoers
     - neutron-sudoers
+
+- include: neutron_messaging_setup.yml
+  when: >
+    inventory_hostname == groups['neutron_all'][0]

templates/neutron.conf.j2

@@ -149,8 +149,9 @@ root_helper = sudo /usr/local/bin/neutron-rootwrap /etc/neutron/rootwrap.conf
 # Messaging service
 [oslo_messaging_rabbit]
 rabbit_port = {{ rabbitmq_port }}
-rabbit_userid = {{ rabbitmq_userid }}
-rabbit_password = {{ rabbitmq_password }}
+rabbit_userid = {{ neutron_rabbitmq_userid }}
+rabbit_password = {{ neutron_rabbitmq_password }}
+rabbit_virtual_host = {{ neutron_rabbitmq_vhost }}
 rabbit_hosts = {{ rabbitmq_servers }}
 
 # Concurrency (locking mechanisms)