[openstack-dev] [nova][xenapi][ptg] can we deprecate the xenapi-specific 'nova-console' service?

Matt Riedemann mriedemos at gmail.com
Thu Apr 18 22:35:58 UTC 2019

On 4/18/2019 4:33 PM, Eric Fried wrote:
> Scrubbing the Nova PTG agenda (hence addition of [ptg] subject tag), and
> this is on it:
> ================
> Can we remove the nova-console service? (mriedem)
> The nova-console service is xenapi-specific and was deprecated in stein:
> https://review.openstack.org/#/c/610075/
> There are, however, REST APIs for it:
> https://developer.openstack.org/api-ref/compute/#server-consoles-servers-os-consoles-os-console-auth-tokens
> So if we drop the nova-console service, the APIs would no longer work.
> It seems our options are:
> Delete the nova-console service and obsolete the REST APIs (410 response
> on all microversions like what we're doingwith nova-cells and
> nova-network APIs)
> Deprecate the REST APIs on a new microversion but continue to support
> older microversions - this means the nova-console service would live
> forever.

Sorting out the course here is why I had it on the PTG agenda, but we 
can't really answer that until we have answers to the other questions below.

> Are people still using the nova-console service? Are there
> alternatives/replacements for xen users? BobBall seemed to suggest there
> was
> http://lists.openstack.org/pipermail/openstack-dev/2018-October/135422.html
> but it's not clear to me.
> ================
> I'm looking for any excuse to remove things from the agenda, and this
> seems like a good candidate, because we don't really stand to gain
> anything by bringing it up at the PTG.
> Does anyone a) object to removing the nova-console service; or b) think
> we need to discuss it at the PTG?

(a) I'd like to remove it if no one is using it and there are 
alternatives but I need xen ops/users/devs to answer that definitively.

(b) No, I don't expect xen people to be at the PTG so ML is a better venue.




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