Convergence of your virtualization and container infrastructures with KubeVirt

Fabian Deutsch, Red Hat, Virtualization & IaaS, FOSDEM 2018

Hello.

Fedora user and former package maintainer

oVirt and KubeVirt Contributor

Working at Red Hat

fabiand@redhat.com

@dummdida

fabiand

https://dummdida.tumblr.com

Just one?

(wererabbit, CC BY NC-ND 2.0)

Everything

Need/Want

(wererabbit, CC BY NC-ND 2.0)

A Stack?

One Stack

Another Stack

Obviously.

Obviously

not.

Storage

Network

Compute

Storage

Network

Compute

• Monitoring
• Logging
• Auditing
• Authentication
• Updating
• …

A stack, heavier than it looks

(jshj, CC BY NC 2.0)

Everything

Need/Want

(sorry, CC BY unknown 2.0)

Virtualization
and
containers

(giphy)

N=2

Maybe.

KubeVirt

Kubernetes
virtualization
API and runtime
add-on

# If optimistic|hero|curious and cluster owner, then

$ kubecuddle create -f  run.kubevirt.io/v/0.2.0.yaml

$ kubecuddle create -f  run.kubevirt.io/v/0.2.0-on-minikube.yaml

(wallpapercave)

Single API entrypoint

$ kubecuddle get pods

$ kubecuddle get vms

… inheriting
 authentication
&
authorization

… aligned
logging
&
metrics

… aligned
metric exposure

So cloud-native that it hurts thrills

Independent life-cycle, just like any other cloud-native app.

No need to bother the host, who needs it anyway?! Everybody.

(sorry, CC BY unknown 2.0)

The famous
80%

and unlucky 20.

VirtualMachine

kind: VirtualMachine
metadata:
  name: awesome2
spec:
  domain:
    devices:
      …
  nodeSelector:
    cpu: fast
status:
  phase: Running

We get scheduled like other pods

We have display and console access!

Our network works like a pod's network

~ SOON ~

PersistentVolumes are our disks

~ SOON ~

We've got live migration!

~ SOON AGAIN ~

There is a price.

OBEY & PAY

to Kubernetes (and if you wear one of those hats)

Not that bad actually. It's a chance to think.

"Kubernetes first,
virtualization second."

-- The Razor

                                 Well, we'll not forget you, virtualization.

(jshj, CC BY NC 2.0)

Obey: Network

Price: No pipes

SOON: Pipes

Price?

Obey: Scheduling

Price: No rescheduling

SOON: Descheduler

Price?

Obey: NUMA Awareness

Price: Less optimized

SOON: CPU Manager

Price?

How far will it go?

Not endless, there are differences.

$ kubectl create \
    -f run.kubevirt.io/v/0.2.0-on-minikube.yaml \
    -f manifests/demo-pv.yaml

Try (with minikube)

Get it to you!

Stabilize

 Contribute to Kubernetes

Going forward

(cuatrok, CC BY SA 2.0)

80%

Single, unified, and consistent API

Converged infrastructure

Summary

Thank you.

https://github.com/kubevirt/

User Guide (link)

@kubevirt

Me: @fabiand