[K8S Ubuntu 16.04.2] Agent installation failing when trying without docker registry

[chhandak]

When trying to install kuberenets cluster with ubuntu16.04 without contrail registry, "Copy vrouter compiler image" ansible task is failing. As the current code always expect centos package when docker registry is not mentioned.

Steps Followed
--------------
https://github.com/Juniper/contrail-ansible/wiki/setup-contrail-containers-without-contrail-registry

All.yaml definition
------------------------
# os_release - operating system release - ubuntu 14.04 - ubuntu14.04, ubuntu 16.04 - ubuntu16.04, centos 7.1 - centos7.1, centos 7.2 - centos7.2
os_release: ubuntu16.04

# contrail version
contrail_version: 4.0.0.0-6

# cloud_orchestrator - cloud orchestrators to be setup
# Valid cloud orchestrators:
# kubernetes, mesos, openstack, openshift
cloud_orchestrator: kubernetes

Error
--------
TASK [node : Copy vrouter compiler image] **************************************
fatal: [10.87.121.35]: FAILED! => {"changed": false, "failed": true, "msg": "Unable to find '/root/Kubernetes/6/playbooks/container_images/contrail-vrouter-compiler-centos7-4.0.0.0-6.tar.gz' in expected paths."}
fatal: [10.87.121.36]: FAILED! => {"changed": false, "failed": true, "msg": "Unable to find '/root/Kubernetes/6/playbooks/container_images/contrail-vrouter-compiler-centos7-4.0.0.0-6.tar.gz' in expected paths."}
                to retry, use: --limit @/root/Kubernetes/6/playbooks/site.retry

PLAY RECAP *********************************************************************
10.87.121.34 : ok=50 changed=2 unreachable=0 failed=1
10.87.121.35 : ok=47 changed=1 unreachable=0 failed=1
10.87.121.36 : ok=47 changed=1 unreachable=0 failed=1

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/31885
Submitter: Ramprakash R (<email address hidden>)

[Ramprakash R (ramprakash)]

This seems like a day-1 issue and it was only tested on centos hosts. This issue has been exposed when testing on ubuntu now.

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/31887
Submitter: Ramprakash R (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/31885
Committed: http://github.com/Juniper/contrail-ansible/commit/1d6145f2ce733648755b6ba26cd1b678480cfdf7
Submitter: Zuul (<email address hidden>)
Branch: master

commit 1d6145f2ce733648755b6ba26cd1b678480cfdf7
Author: Ramprakash <email address hidden>
Date: Fri May 19 13:14:13 2017 -0700

Closes-bug: #1691812 : Skip the task that copies centos vrouter compiler container image on non-centos platforms

Change-Id: Ibb1d168e5fe1154333b810d50201436a5ce95e07

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/31887
Committed: http://github.com/Juniper/contrail-ansible/commit/9368b3e03ef7e2ae97637a448fceeb255a3cd646
Submitter: Zuul (<email address hidden>)
Branch: R4.0

commit 9368b3e03ef7e2ae97637a448fceeb255a3cd646
Author: Ramprakash <email address hidden>
Date: Fri May 19 13:14:13 2017 -0700

Closes-bug: #1691812 : Skip the task that copies centos vrouter compiler container image on non-centos platforms

Change-Id: Ibb1d168e5fe1154333b810d50201436a5ce95e07