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Re: APS & OpenStack - Replies To The Questions (last Tuesday's meeting)

 

Hi Andrey,

Thank you for the email.

One question: As I spoke with our OpenStack experts today, I was never
faced with a notion such as Heat Template (Heat Attack), they only
mentioned FLAVOUR. I am not personally sure heat templates exist in
OpenStack, so will need to follow up on this. For Flavours a certain set of
params can be retrieved.

Let me know if there are any other questions.

Kind Regards,
Dmitry.

On Fri, Sep 12, 2014 at 7:10 PM, Andre Moruga <amoruga@xxxxxxxxxxxxx> wrote:

>  Dima, thanks
>
> One question is still open: item #2 is about ability to retrieve
> parameters for heat attack (not a general template). Not sure this is the
> one was answered.
>
>
>
> Jonathan – some conclusions on the others:
>
>
>
> 1)      We do need to handle situation when image is removed in Glance
> (show it as problematic, suggest to either fix or remove)
>
> 2)      Waiting for clarification here
>
> 3)      For images: we need to display Name (retrieved from API), size
> (API), OS (provider types, mandatory), description (provider types,
> optional, not shown in grid mode but left for details)
>
>
>
> *From:* Dmitry Savenkov [mailto:dsavenkov@xxxxxxxxxxxx]
> *Sent:* Friday, September 12, 2014 8:11 AM
> *To:* Andre Moruga
> *Cc:* openstack-aps-package-dev@xxxxxxxxxxxxxxxxxxx; Juan Victor
> Izquierdo; Evgeniya Shumakher
> *Subject:* APS & OpenStack - Replies To The Questions (last Tuesday's
> meeting)
>
>
>
> Andrey:
>
> Today I was successfully able to get our OpenStack experts to reply to the
> questions that had been triggered by our recent meeting. I will list the
> questions below along with replies to them. Please mind that I didn't test
> the APIs that could retrieve some values, so it's up to *Mamasu *to do
> that and let me know the results.
>
>
> *The questions are: *
> 1) Find out if an image that is being used by a VM/server can be removed
> from OpenStack via Glance (or if there are any APIs enabling the user to do
> so).
>
> 2) Can RAM/CPU/other parameters can be retrieved in OpenStack from a
> template by means of any APIs?
>
> 3) Image: What type of information can be retrieved re an image (OS/ all
> the possible parameters) - metadata ?
>
>
> *Please see the replies below: *
> 1) it's possible to remove an image that is being referenced by any
> VM/instance via Glance/API (an image is copied to a compute node when it's
> provisioned). The folder is: instance/_base‏
>
> 2)  it's also possible to get various flavor parameters by invoking *nova
> flavor-list*‏ (http://developer.openstack.org/api-ref-compute-v2.html).
>
> */v2/{tenant_id}/flavors/detail* needs to be called. *minRam *and *minDisk
> *parameters can be specified. However, I am not sure why the 'min' prefix
> is in place.. Will try to clarify this with our OpenStack experts.
>
> * vcpu (number of cores), ram, disk can be retrieved (response json)*
>
> 3) There is an image API enabling the retrieval of an image parameters. A
> link to it is here: http://developer.openstack.org/api-ref-image-v2.html.
> However, neither OS nor the number of instances are in the list (only the *image
> link prop* is in the main list).
>
> The number of instances using an image can be retrieved by invoking the
> following: *nova list --all-tenants --image <image_UUID>*. The API
> reference is here:http://developer.openstack.org/api-ref-compute-v2.html.
>
> In order to retrieve the OS, please take a look at *xsd:dict Properties*
> key-value tags. It should be contained there (according to our specialist).
>
>
> *A question for Andrey: Andrey, do you have access to our Jira? If so, I
> would be able to share our tickets containing questions with you. It would
> be more convenient. *
> Please let me know if there are any questions in this regards.
>
> Thanks.
>
> Kind Regards,
> Dmitry.
>
>
>

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