Re: [openstack-dev] VMWare Type Snapshot for Openstack 4.3

2017-08-04 Thread Matt Riedemann

On 8/4/2017 8:41 AM, Tom Kennedy wrote:
Is there an Openstack document that shows how to extend openstack to do 
something like this?


The create snapshot API is this in upstream Nova:

https://developer.openstack.org/api-ref/compute/#create-image-createimage-action

There is no distinction between a live and cold snapshot in the end user 
REST API. That's dependent on the backend compute driver. For example, 
the libvirt driver may attempt to perform a live snapshot if possible, 
but falls back to a cold snapshot if that's not possible. Other drivers 
could do the same.


As for the difference between the OpenStack concept of a snapshot and 
the VMware concept of a snapshot, I don't know what that is, but I can 
saw we wouldn't add a VMware-specific REST API for snapshots to the 
compute API when we already have the createImage API. So some design 
work would be involved if you wanted to upstream this.


For information on contributing features to Nova, you can start here:

https://docs.openstack.org/nova/latest/contributor/blueprints.html

--

Thanks,

Matt

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Re: [openstack-dev] VMWare Type Snapshot for Openstack 4.3

2017-08-04 Thread Tom Kennedy
Matt

That is correct.  This is for the IBM ICMO product. 
Here is the only reference I see in the IBM documentation regarding this.
https://www.ibm.com/support/knowledgecenter/SST55W_4.3.0/liaca/liaca_cfg_snapshot.html

Is there an Openstack document that shows how to extend openstack to do 
something like this?


 Tom Kennedy
 kenne...@us.ibm.com
 Infrastructure Engineer




From:   Matt Riedemann <mriede...@gmail.com>
To: openstack-dev@lists.openstack.org
Date:   08/03/2017 10:44 PM
Subject:        Re: [openstack-dev] VMWare Type Snapshot for Openstack 4.3



On 8/3/2017 3:16 PM, Tom Kennedy wrote:
> I see that this is implemented in 
> nova(nova/api/openstack/compute/contrib/server_snapshot.py) , but is not 

> available in Horizon.

I think you're looking at some forked code because that doesn't exist in 
upstream Nova:

https://github.com/openstack/nova/tree/master/nova/api/openstack/compute

I seem to remember a team in China at IBM working on VMware snapshots 
years ago, or something like this, for a product, so maybe you stumbled 
upon that.

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Thanks,

Matt

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Re: [openstack-dev] VMWare Type Snapshot for Openstack 4.3

2017-08-03 Thread Matt Riedemann

On 8/3/2017 3:16 PM, Tom Kennedy wrote:
I see that this is implemented in 
nova(nova/api/openstack/compute/contrib/server_snapshot.py) , but is not 
available in Horizon.


I think you're looking at some forked code because that doesn't exist in 
upstream Nova:


https://github.com/openstack/nova/tree/master/nova/api/openstack/compute

I seem to remember a team in China at IBM working on VMware snapshots 
years ago, or something like this, for a product, so maybe you stumbled 
upon that.


--

Thanks,

Matt

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