We at Nectar are in the same boat as Mike. Our use-case is a little bit more about geo-distributed operations though - our Cells are in different States around the country, so the local glance-apis are particularly important for caching popular images close to the nova-computes. We consider these glance-apis as part of the underlying cloud infra rather than user-facing, so I think we'd prefer not to see them in the service-catalog returned to users either... is there going to be a (standard) way to hide them?
On 28 April 2017 at 09:15, Mike Dorman <mdor...@godaddy.com> wrote: > We make extensive use of the [glance]/api_servers list. We configure that on > hypervisors to direct them to Glance servers which are more “local” > network-wise (in order to reduce network traffic across security > zones/firewalls/etc.) This way nova-compute can fail over in case one of the > Glance servers in the list is down, without putting them behind a load > balancer. We also don’t run https for these “internal” Glance calls, to save > the overhead when transferring images. > > End-user calls to Glance DO go through a real load balancer and then are > distributed out to the Glance servers on the backend. From the end-user’s > perspective, I totally agree there should be one, and only one URL. > > However, we would be disappointed to see the change you’re suggesting > implemented. We would lose the redundancy we get now by providing a list. > Or we would have to shunt all the calls through the user-facing endpoint, > which would generate a lot of extra traffic (in places where we don’t want > it) for image transfers. > > Thanks, > Mike > > > > On 4/27/17, 4:02 PM, "Matt Riedemann" <mriede...@gmail.com> wrote: > > On 4/27/2017 4:52 PM, Eric Fried wrote: > > Y'all- > > > > TL;DR: Does glance ever really need/use multiple endpoint URLs? > > > > I'm working on bp use-service-catalog-for-endpoints[1], which intends > > to deprecate disparate conf options in various groups, and centralize > > acquisition of service endpoint URLs. The idea is to introduce > > nova.utils.get_service_url(group) -- note singular 'url'. > > > > One affected conf option is [glance]api_servers[2], which currently > > accepts a *list* of endpoint URLs. The new API will only ever return > *one*. > > > > Thus, as planned, this blueprint will have the side effect of > > deprecating support for multiple glance endpoint URLs in Pike, and > > removing said support in Queens. > > > > Some have asserted that there should only ever be one endpoint URL for > > a given service_type/interface combo[3]. I'm fine with that - it > > simplifies things quite a bit for the bp impl - but wanted to make sure > > there were no loudly-dissenting opinions before we get too far down this > > path. > > > > [1] > > > https://blueprints.launchpad.net/nova/+spec/use-service-catalog-for-endpoints > > [2] > > > https://github.com/openstack/nova/blob/7e7bdb198ed6412273e22dea72e37a6371fce8bd/nova/conf/glance.py#L27-L37 > > [3] > > > http://eavesdrop.openstack.org/irclogs/%23openstack-keystone/%23openstack-keystone.2017-04-27.log.html#t2017-04-27T20:38:29 > > > > Thanks, > > Eric Fried (efried) > > . > > > > > __________________________________________________________________________ > > OpenStack Development Mailing List (not for usage questions) > > Unsubscribe: > openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > > +openstack-operators > > -- > > Thanks, > > Matt > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators -- Cheers, ~Blairo _______________________________________________ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
