[openstack-dev] [all][ironic] Kubernetes-based long running processes

Tomasz Pa ss7pro at gmail.com
Sat Mar 18 12:33:56 UTC 2017


On 16 Mar 2017 6:21 pm, "Dean Troyer" <dtroyer at gmail.com> wrote:



Before implementing something new it would be a good exercise to have
a look at the other existing ways to run VMs and containers already in
the OpenStack ecosystem.  Service VMs are a thing, and projects like
Octavia are built around running inside the existing infrastructure.
There are a bunch of deployment projects that are also designed
specifically to run services with minimal base requirements.



VMs are having much bigger overhead than containers. Imagine you have
Ironic cluster with 3000 bare-metal nodes with each having console enabled.
Overhead on running 3000vms vs 3000 containers is huge. No to mention that
Kubernetes container highavalability is far ahead when compared to
openstack vms.

Also Kubernetes is not something new and framework to launch containers on
top of it would be really light.

TP
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