Turbo Fredriksson <turbo@...> writes: > > My use-case require me to have Containers for certain rings > and real VMs for others. > > But I also want to utilize my hardware to max, while keeping > the electricity bill (and cooling) as low as possible. This > means that I need (want!) to run both the VMs and the Containers > on the same host. > > I've just started with Openstack, so I have _many_ questions, > and this is the first one: Can I run both Nova (full VMs) and > Magnum (Containers) on the same physical host? > > As in, will Openstack realize that the physical host is full > (with mixed VMs and Containers) so that it will start filling > the next physical machine? Because I'm assuming that's what it > does, realize that there's no more "space" (resources) left > on the host and know that it can't put any new instance on there, > but need to start filling another one. > > Or does it just throw the instances out randomly on physical > nodes? > --
Hi! AFAIK the Magnum service will run containers inside VMs. It is a provisioning system for container orchestration services like Kubernetes. There are drivers like nova-lxc and nova-docker, which run containers directly on bare metal, and I would not mix it with KVM on the same nodes. Although it might just work - each compute driver periodically reports free resources to Nova and will regard the other one as non-Openstack load. So I think And you can run Magnum and Ironic for containers on bare metal, but you won't be able to run VMs on that. Tomas _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
