Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-09 Thread Zane Bitter
On 08/04/15 21:51, Miguel Grinberg wrote: Hi Angus, Regarding this: As Zane suggested, you should think of autoscaling as been in a different service. It's not that I can't see your point of view. I can imagine an autoscaling service. I agree with you guys that if we had that, then none of

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Thomas Herve
Hi, Response inline. Hi, The OS::Heat::AutoScalingGroup resource is somewhat limited at this time, because when a scaling even occurs it does not notify dependent resources, such as a load balancer, that the pool of instances has changed. That's technically not true. If you use a neutron

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Miguel Grinberg
Thomas, I stand corrected. If you use Neutron's LBAAS plugin you do get the correct autoscaling behavior because Neutron updates the loadbalancer when pool members are added or removed (Heat does not seem to participate in this update, as far as I can see). Still my #1 issue still exists,

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Zane Bitter
On 07/04/15 22:02, Miguel Grinberg wrote: Hi, The OS::Heat::AutoScalingGroup resource is somewhat limited at this time, because when a scaling even occurs it does not notify dependent resources, such as a load balancer, that the pool of instances has changed. As Thomas mentioned, the

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Zane Bitter
On 08/04/15 18:03, Miguel Grinberg wrote: Here is where we disagree. In my opinion this is broken functionality. It's not broken functionality, it's functionality that never existed. Spontaneous stack updates are just not part of the CloudFormation model, and they've never been a part of

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Angus Salkeld
On Thu, Apr 9, 2015 at 8:03 AM, Miguel Grinberg miguel.s.grinb...@gmail.com wrote: Zane, replies inline. On Wed, Apr 8, 2015 at 3:46 PM, Zane Bitter zbit...@redhat.com wrote: On 07/04/15 22:02, Miguel Grinberg wrote: Hi, The OS::Heat::AutoScalingGroup resource is somewhat limited at

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Miguel Grinberg
Zane, replies inline. On Wed, Apr 8, 2015 at 3:46 PM, Zane Bitter zbit...@redhat.com wrote: On 07/04/15 22:02, Miguel Grinberg wrote: Hi, The OS::Heat::AutoScalingGroup resource is somewhat limited at this time, because when a scaling even occurs it does not notify dependent resources,

Re: [openstack-dev] [heat] autoscaling and load balancers

2015-04-08 Thread Miguel Grinberg
Hi Angus, Regarding this: As Zane suggested, you should think of autoscaling as been in a different service. It's not that I can't see your point of view. I can imagine an autoscaling service. I agree with you guys that if we had that, then none of this would be Heat's concern. When I think

[openstack-dev] [heat] autoscaling and load balancers

2015-04-07 Thread Miguel Grinberg
Hi, The OS::Heat::AutoScalingGroup resource is somewhat limited at this time, because when a scaling even occurs it does not notify dependent resources, such as a load balancer, that the pool of instances has changed. The AWS::AutoScaling::AutoScalingGroup resource, on the other side, has a