Get started with KVM and Kubernetes

https://blog.alexellis.io/kvm-kubernetes-primer/

by alexellisuk • 8 years ago

72 13 8 years ago

blog.alexellis.io

mgbmtl• 8 years ago

As someone who mostly works with a few dozen KVM instances and who will soon have to consider something like Kubernetes to facilitate growth, this was a very good read.

deadbunny3• 8 years ago

I was really hoping this was about running kvm on k8s, not the other way round. Other than hand holding you through how to spin up some kvm machines I'm not sure what this offeres over the official docs on how to install k8s...

alexellisuk5• 8 years ago

This is about setting up KVM VMs - not about Kubernetes, it uses Kubernetes as an example application that you can run on your KVM VMs. See the blog post outline:

This post is going to focus on how to create a cluster of Virtual Machines (VMs) using KVM at home in the interests of promoting learning and exploration.

deadbunny3• 8 years ago

Yes I am able to read, thanks. Not sure why you're replying though, given the title and the existence of projects to run kvm on k8s I think it's fairly obvious why I made my post:

Get started with KVM and Kubernetes
> I was really hoping this was about running kvm on k8s, not the other way round.

To fill in the blanks:

> I was really hoping [given the title of this post] this was about running kvm on k8s [given there are projects to do just this], not the other way round. Other than hand holding you through how to spin up some kvm machines I'm not sure what this offers over the official docs on how to install k8s...

iatrou• 8 years ago

For a lightweight single-host deployment of Kubernetes, it's worth considering LXD and conjure-up https://tutorials.ubuntu.com/tutorial/install-kubernetes-wit...

drdaeman• 8 years ago

How all this juju compares to `kubeadm init`?

bryanlarsen2• 8 years ago

kubeadm only does single master deployments, so it's not useful for production, but minikube is much better IMO for development. (Minikube isn't just a VM wrapper, `minikube --vm-driver=none` works quite nicely for our dev setups).

kubeadm is turning into more of a building block: minikube and kubespray are using it.

bryanlarsen2• 8 years ago

Kubernetes on KVM: `minikube start --vm-driver=kvm`

alexellisuk5• 8 years ago

That is useful too, but this is not Kubernetes on KVM blog post, it's getting started with KVM using Kubernetes as an example of a workload you can run.

alexellisuk5• 8 years ago

Just to clarify the purpose of this blog post as I can see a few people are getting a slightly different message to intended. It doesn't claim to be the preferred or only way to install Kubernetes.

It is primarily focused on my audience of Docker / container users. I want to show how it's possible to use KVM to set up VMs easily on Linux and relate that back to something they use often - i.e. Kubernetes.

In this post I want to introduce KVM - Linux's native approach to virtualization.
This post is going to focus on how to create a cluster of Virtual Machines (VMs) using KVM at home in the interests of promoting learning and exploration.

If people want help picking the "right solution" for installing Kubernetes for production usage then checkout the documentation - https://kubernetes.io/docs/setup/pick-right-solution/

Get started with KVM and Kubernetes

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