Add installation support for os_ironic

This patch adds the initial support for the ironic role in
openstack-ansible, but leaves ironic unconfigured and not
installed by default.

Configuration, including Nova configuration, will be addressed in
subsequent patches.

Change-Id: Id9f01deb5c46ee2186b9c41c7f88205560b5f437
Depends-On: Ide66c7ee59192ac441ac2919028eca0ad665ceea
Depends-On: I590f5ade90b3e37af7f1b8ee333000d4f993f8c5
Partially-implements: blueprint role-ironic
Signed-off-by: Michael Davies <michael@the-davies.net>
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

etc/openstack_deploy/conf.d/ironic.yml.aio

@@ -0,0 +1,4 @@
+---
+ironic-infra_hosts:
+  aio1:
+    ip: 172.29.236.100

etc/openstack_deploy/env.d/ironic.yml

@@ -0,0 +1,67 @@
+---
+# Copyright 2016, 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.
+
+component_skel:
+  ironic_api:
+    belongs_to:
+      - ironic_all
+  ironic_conductor:
+    belongs_to:
+      - ironic_all
+  ironic_server:
+    belongs_to:
+      - ironic_servers
+
+container_skel:
+  ironic_api_container:
+    belongs_to:
+      - ironic-infra_containers
+    contains:
+      - ironic_api
+    properties:
+      service_name: ironic
+      container_release: trusty
+  ironic_conductor_container:
+    belongs_to:
+      - ironic-infra_containers
+    contains:
+      - ironic_conductor
+    properties:
+      service_name: ironic
+      container_release: trusty
+  ironic_server_container:
+    belongs_to:
+      - ironic-server_containers
+    contains:
+      - ironic_server
+    properties:
+      is_metal: true
+      service_name: ironic
+      container_release: trusty
+
+
+physical_skel:
+  ironic-infra_containers:
+    belongs_to:
+      - all_containers
+  ironic-infra_hosts:
+    belongs_to:
+      - hosts
+  ironic-server_containers:
+    belongs_to:
+      - all_containers
+  ironic-server_hosts:
+    belongs_to:
+      - hosts

etc/openstack_deploy/user_secrets.yml

@@ -71,6 +71,11 @@ heat_cfn_service_password:
 heat_profiler_hmac_key:
 heat_rabbitmq_password:
 
+## Ironic options
+ironic_rabbitmq_password:
+ironic_galera_password:
+ironic_service_password:
+
 ## Horizon Options
 horizon_container_mysql_password:
 horizon_secret_key: