Add Glance metadata parsing

this could not quite follow the existing pattern due to
the fact that glance has multiple independent config files.

So this uses a fileglob loop to find all the configuration files
in the /etc/glance directory and load each of them in turn.

Change-Id: I259bef0d022500b3865926fc36f289c6a17ec5db

ansible/gather/roles/glance/tasks/main.yml

@@ -0,0 +1,20 @@
+---
+#
+# Tasks to get Glance facts
+#
+
+- name: Parse Glance config
+  become: true
+  shell: python /tmp/openstack-config-parser.py glance {{ item }} /tmp/{{ item | basename }}.yml
+  with_fileglob:
+  - /etc/glance/*.conf
+
+- name: Fetch output
+  fetch: src=/tmp/{{ item | basename }}.yml dest=/tmp/{{ item | basename  }}.yml flat=yes
+  with_fileglob:
+  - /etc/glance/*.conf
+
+- name: Load configuration variables
+  include_vars: /tmp/{{ item | basename }}.yml
+  with_fileglob:
+  - /etc/glance/*.conf

ansible/gather/site.yml

@@ -19,6 +19,7 @@
     - heat
     - mysql
     - rabbitmq
+    - glance
 
 - hosts: undercloud
   remote_user: "{{ local_remote_user }}"

ci-scripts/tripleo/install-and-check.sh

@@ -125,7 +125,7 @@ time deployCloud
 time deployBrowbeat
 
 pushd $WORKSPACE/browbeat
-if [[ $($DIFF_CMD | grep -i metadata) != "" ]]
+if [[ $($DIFF_CMD | grep -i gather) != "" ]]
 then
   time runGather
 fi