CODEWITHSUNDEEP
openstackopenstack-cinderopenstack-python-api
Andreas Florath
Andreas Florath

Reputation: 4612

How to sync / update local (volume) data with OpenStack server?

I want to create a server within OpenStack nova. The first step is to create a volume from an image:

volume = cinder.volumes.create(5, name="test", imageRef=some_id, ...)

The volume will then for some time in the state 'creating'. Calling nova.servers.create with a volume in creating state fails:

novaclient.exceptions.BadRequest: Block Device f2fe64ee-f049-4a6f-8edd-52579d82fc23 is not bootable. (HTTP 400) (Request-ID: req-f036d084-e9c8-4bdf-b266-73fbbe993796)

My idea is to wait until the volume gets available:

while volume.status != 'available':
    print("Volume status [%s]" % volume.status)
    time.sleep(1.0)

But it looks that the volume data itself is locally cached and never gets updated - even if the GUI and CLI shows, that the volume is already available.

Is there a (simple) way to synchronize the local data with the remote state? Like:

volume.sync()

Upvotes: 0

Views: 300

Answers (1)

Andreas Florath
Andreas Florath

Reputation: 4612

Found the answer in the document called 'Python APIs: The best-kept secret of OpenStack':

There is the need to update / get the whole volume again:

while volume.status != 'available':
    print("Volume status [%s]" % volume.status)
    time.sleep(1.0)
    volume = cinder.volumes.get(volume.id)

Upvotes: 0

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