Comment 16 for bug 1272349

Team,

In 5.0.1 Public IP address requires for compute nodes to Cinder service works properly.

If compute node has no Public IP address (or br-ex is down) volume attachment fails with following error:

<180>Sep 13 13:49:25 node-5 nova-nova.compute.manager AUDIT: Attaching volume 3c0f4524-b272-4879-9a08-e5e4892fca61 to /dev/vdb
<182>Sep 13 13:49:25 node-5 nova-urllib3.connectionpool INFO: Starting new HTTP connection (1): 172.16.73.37
<179>Sep 13 13:49:25 node-5 nova-nova.compute.manager ERROR: Failed to attach 3c0f4524-b272-4879-9a08-e5e4892fca61 at /dev/vdb

...

ConnectionError: Unable to establish connection: HTTPConnectionPool(host='172.16.73.37', port=8776): Max retries exceeded with url: /v1/18f1f37fa17346f3a429ccfcec45c927/volumes/3c0f4524-b272
-4879-9a08-e5e4892fca61 (Caused by <class 'socket.error'>: [Errno 101] ENETUNREACH)

We should test if 5.1 behaves the same way.