Need API to gather image metadata across all of MAAS

[Ian Booth]

Juju needs to know the available images which can be run within a MAAS deployment. Specifically, it needs to know what architectures are supported so that when a user types:

juju bootstrap --constraints arch=arm64
or
juju deploy --constraints arch=arm64 mysql

Juju can query MAAS and validate the supplied arch and exit early if the arch is not supported.

MAAS currently has an API to find this information per cluster but we need one that returns the image metadata across all of MAAS.

[Julian Edwards (julian-edwards)]

This would be pretty trivial to implement at the API level since the UI effectively does the same thing when adding nodes. However since Blake is significantly change the image processing, I don't know how this works any more. Can you comment Blake?

[Blake Rouse (blake-rouse)]

You can now use MAAS API to get information on all the images that MAAS supports. All clusters now have the same images, since they all sync from the region.

Take a look at the new boot-resources API, and I think it will provide the information you are looking for.

[Sean Feole (sfeole)]

Thanks Blake,

For me to test these changes, will I be able to pull them from http://ppa.launchpad.net/maas-maintainers/testing relatively soon?
I'm not familiar with the MaaS release cycle.

[Blake Rouse (blake-rouse)]

You can pull from https://launchpad.net/~maas-maintainers/+archive/ubuntu/experimental now, to test it out.

[Julian Edwards (julian-edwards)]

On Monday 15 Sep 2014 15:02:26 you wrote:
> Thanks Blake,
>
> For me to test these changes, will I be able to pull them from
> http://ppa.launchpad.net/maas-maintainers/testing relatively soon? I'm not
> familiar with the MaaS release cycle.

A 1.7 release candidate will be uploaded to "testing" in a couple of weeks, or
you can try the package in 14.10 Utopic, or the "experimental" PPA.