VOL-570 : Install Kubernetes in production and test modes

- Supports offline installation for k8s
- Configs and deploys voltha components

Change-Id: I29eb87c035cea1e86176bb2e30d36278760ece82
diff --git a/install/ansible/roles/common/tasks/main.yml b/install/ansible/roles/common/tasks/main.yml
index f5904dc..ec36046 100644
--- a/install/ansible/roles/common/tasks/main.yml
+++ b/install/ansible/roles/common/tasks/main.yml
@@ -13,6 +13,12 @@
   with_items: "{{ hosts }}"
   tags: [common]
 
+- name: GlusterFS repository is available
+  apt_repository:
+    repo: 'ppa:gluster/glusterfs-3.13'
+  when: target != "cluster"
+  tags: [common]
+
 - name: Latest apt packages
   apt:
     name: "{{ item }}"