[Openstack] (Juno - *sigh*) Want non-admin access to hypervisor:VM association.
On 2018-11-18 09:11, Mohammed Naser wrote:
> This should take care of it, don't know if it exists in Juno though.
It *does* exist in Juno, it *can't*, however, do what I want -- at
least, generically. The hostId that gets returned is a value that's
(apparently) used to let you know, semi-anonymously, how affinity is (or
isn't) working for your VMs. So you get a unique identifier for each
hypervisor -- but it has no *obvious* bearing on the hostname. It's an
id that's formed from the SHA224 hash of the ID of your tenant and the
hostname of the hypervisor -- a bit of a catch-22, that, and prevents
you from being able to make use of the hash if you don't know your
back-end. But... I do. So I created an associative array with all the
current (and, God willing, future) hypervisor hostnames in my company,
with the key being the hostId/hash, and the value being the hypervisor
name. Then I queried my VMs, got all the hostIds, used that as the
index to query my associative array, and bingo! My hypervisor's name.
Kinda fugly, but when you have a standardized hypervisor hostname
nomenclature, it's sufficient, without having to go mucking about with
changing poorly-documented Nova policy.json stuff in a four-year-old
release of OpenStack.
I'll take it. Thanks!
> On Thu, Nov 15, 2018 at 1:49 PM Ken D'Ambrosio <ken at jots.org> wrote:
>> Hey, all. We've got a Juno cloud, and we'd like various end-users to be
>> able to see which hypervisors their VMs spring up on.
>> /etc/nova/policy.json seems to have some relevant info, but it's hard to
>> tell what does what. "compute_extension:hypervisors" looks like a
>> possible candidate, but that's so vague that there's no telling what,
>> exactly, is meant by "hypervisors". So:
>> * Given that I just want the hypervisor:VM association, any suggestions
>> as to which rule(s) to modify?
>> * Failing that, wondering if there's any for-real documentation on what
>> the various options in policy.json *do*. I've found many, many lists of
>> what's in a generic policy.json, but nothing that went into detail about
>> what does what.
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> Mohammed Naser -- vexxhost
> D. 514-316-8872
> D. 800-910-1726 ext. 200
> E. mnaser at vexxhost.com
> W. http://vexxhost.com 
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