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From David Hbase <davidhb...@gmail.com>
Subject Re: Re. multi-tenancy capability
Date Wed, 27 Jan 2016 09:10:48 GMT
Thanks Chamila,

Got great answers with the Kubernetes auto scaling (via node v 1.1 and or
node). But would like to know what's the Stratos auto scaling functions
with Kubernetes?

etc: in Stratos we setup the auto scaling policy for the kubernetes
cluster, when and how can this auto scaling policy work? ( will scaling the
new pod or node ? )

Thanks
-D

On Tue, Jan 26, 2016 at 11:16 AM, Chamila De Alwis <chamilad@wso2.com>
wrote:

> Hi David,
>
> On Tue, Jan 26, 2016 at 8:28 PM, David Hbase <davidhbase@gmail.com> wrote:
>
>>
>> 1. Auto scaling with Kubernetes? ( Dynamic add the minions without
>> interrupt the curretn running services ?)
>>
> In Kubernetes, the Node Controller is the component in charge of
> registration and revocation of Nodes (minions) in a cluster. However as the
> Kubernetes documentation states [1], it doesn't automatically provision a
> new node, simply performing the registry task for the list of nodes.
>
> Therefore, any autoscaling of Nodes would have to be done at a different
> layer, based on metrics like CPU usage. CloudWatch for EC2 or Heat for
> OpenStack are few examples of achieving this. Nodes will have to be
> configured to auto register with the proxy.
>
> If you're looking for Pod autoscaling, this is already implemented in
> Kubernetes 1.1 [2]. Autoscaling is based on CPU usage.
>
> 2. Application Topology can display the service and pods in the Kubernetes
>> cluster?
>
> In Stratos, the Application Topology is the view of the Composite
> Application deployment. It doesn't show the IaaS specific details such as
> Services and Pods. These details will have to be retrieved from the
> Kube-UI.
>
> [1] - http://kubernetes.io/v1.1/docs/admin/node.html#node-controller
> [2] -
> http://kubernetes.io/v1.1/docs/user-guide/horizontal-pod-autoscaler.html
>
>
> Regards,
> Chamila de Alwis
> Committer and PMC Member - Apache Stratos
> Software Engineer | WSO2 | +94772207163
> Blog: code.chamiladealwis.com
>
>
>

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