Added vendor_data.json support

This patch adds the ability for a deployer to add vendor_data.json
for deployments.  It can make things configurable via a simple
dictionary.

Change-Id: If5b061776120c3d7a7ff763eb2757c0b5b184000

defaults/main.yml

@@ -557,6 +557,7 @@ nova_nova_conf_overrides: {}
 nova_rootwrap_conf_overrides: {}
 nova_api_paste_ini_overrides: {}
 nova_policy_overrides: {}
+nova_vendor_data_overrides: {}
 nova_placement_uwsgi_ini_overrides: {}
 nova_api_metadata_uwsgi_ini_overrides: {}
 nova_api_os_compute_uwsgi_ini_overrides: {}

releasenotes/notes/added-vendor-data-c35cb7735b1ee9c7.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - Added the ability to configure vendor data for Nova in order to be able to
+    push things via the metadata service or config drive.

tasks/nova_post_install.yml

@@ -47,6 +47,10 @@
       dest: "/etc/nova/api-paste.ini"
       config_overrides: "{{ nova_api_paste_ini_overrides }}"
       config_type: "ini"
+    - src: "vendor_data.json.j2"
+      dest: "/etc/nova/vendor_data.json"
+      config_overrides: "{{ nova_vendor_data_overrides }}"
+      config_type: "json"
     - src: "policy.json.j2"
       dest: "/etc/nova/policy.json-{{ nova_venv_tag }}"
       config_overrides: "{{ nova_policy_overrides }}"

templates/nova.conf.j2

@@ -295,6 +295,7 @@ secure_proxy_ssl_header = {{ nova_secure_proxy_ssl_header }}
 auth_strategy = keystone
 enable_instance_password = {{ nova_enable_instance_password }}
 use_forwarded_for = {{ nova_network_services[nova_network_type]['use_forwarded_for'] | bool }}
+vendordata_jsonfile_path = /etc/nova/vendor_data.json
 
 [scheduler]
 max_attempts = {{ nova_scheduler_max_attempts }}

templates/vendor_data.json.j2

@@ -0,0 +1,2 @@
+{
+}