Adding support fot rhel-7.3

Change-Id: I2596f07754e946aeb184860e1576957dcbe13d48

playbooks/tester/tempest/pre-git.yml

@@ -4,6 +4,9 @@
   gather_facts: no
   sudo: yes
   tasks:
+    - name: Install python-setuptools for easy_install
+      yum: name=python-setuptools state=present
+
     - name: Install pip
       command: easy_install pip
 

settings/distro/rhel-7.3.yml

@@ -0,0 +1,12 @@
+--- !extends:common/rhel.yml
+
+distro:
+    full_version: "7.3"
+    version:
+        major: '7'
+        minor: '3'
+    short_version: '73'
+    epel_release: https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+    repo:
+        rdopkg: https://copr.fedoraproject.org/coprs/jruzicka/rdopkg/repo/epel-7/jruzicka-rdopkg-epel-7.repo
+        rhpkg: "{{ !lookup private.distro.rhel.download_server }}/rel-eng/dist-git/rhel/rhpkg.repo"

settings/provisioner/openstack/site/qeos7/tenant/common/image.yml

@@ -43,3 +43,8 @@ provisioner:
                 id: 33cd368f-dfcc-4701-b22e-73fffd341173
                 name: rhel-guest-image-7.2-20151102.0
                 remote_user: cloud-user
+            '7.3':
+                id: ac47d004-c15c-4eb5-a205-ec8beda806e5
+                name: rhel-7.3-server-x86_64-latest
+                remote_user: cloud-user
+