Abstract over differerences in Open vSwitch package name

This is need for Debian/Ubuntu support. This was missed from the
initial ubuntu support patch as it is only installed if
the ovs-vsctl command is missing.

TrivialFix

Change-Id: I36c2e71234dd8b446deb382d705ac74add6a3bdf

ansible/hypervisor_setup.yml

@@ -1,4 +1,14 @@
 ---
+- name: Gather os specific variables
+  include_vars: "{{ item }}"
+  with_first_found:
+    - files:
+        - "{{ ansible_distribution }}-{{ ansible_distribution_major_version}}.yml"
+        - "{{ ansible_distribution }}.yml"
+        - "{{ ansible_os_family }}.yml"
+      skip: true
+  tags: vars
+
 - name: Ensure general system requirements are installed
   package:
     name: "{{ system_requirements }}"
@@ -23,8 +33,8 @@
 
 - block:
     - name: Ensure Open vSwitch package is installed
-      yum:
-        name: openvswitch
+      package:
+        name: "{{ openvswitch_pkg_name }}"
       become: true
 
     - name: Ensure Open vSwitch is started and enabled

ansible/vars/Debian.yml

@@ -2,3 +2,7 @@
 
 # path to `ip` from the `iproute2` package
 tenks_ip_path: /sbin/ip
+
+# package that provides the Open vSwitch daemon and userspace
+# utilities
+openvswitch_pkg_name: openvswitch-switch

ansible/vars/RedHat.yml

@@ -2,3 +2,7 @@
 
 # path to `ip` from the `iproute2` package
 tenks_ip_path: /usr/sbin/ip
+
+# package that provides the Open vSwitch daemon and userspace
+# utilities
+openvswitch_pkg_name: openvswitch