libvirt-kube

README

          libvirt-kubelet README
	  ======================

The libvirt-kubelet project provides integration for running libvirt
guests through the Kubernetes framework, with a particular focus on
use of KVM virtual machines for running full operating system images. 

The project is distributed under the terms of the Apache License 2.0.
Refer to the LICENSE file for full legal terms and conditions.

Source repository
-----------------

The master source repository for the project is hosted on libvirt.org

   http://libvirt.org/git/?p=libvirt-kube.git
   git://libvirt.org/libvirt-kube.git

For the purposes of Go build, the package is considered to be in
the namespace "libvirt.org/libvirt-kube"

Building
--------

The project uses Go vendoring, but the 3rd party deps are not checked
into git. Use of the "glide" tool is required to import the 3rd party
deps prior to build

  $ go get github.com/Masterminds/glide

A Makefile is provided to simpify the proces of fetching deps and
building commands

  $ make

The generated binaries will get created in $GOPATH/bin

Docker images suitable for running the various daemon/services can
optionally be generated with

  $ make images

Running
-------

Exampe kubernetes manifest files are provided to illustrate how to
get the system.

The manifests require that an all-in-one kubernetes cluster is running
on localhost, allowing privileged containers & providing DNS

  KUBE_ENABLE_CLUSTER_DNS=true ALLOW_PRIVILEGED=1 \
      ./hack/local-up-cluster.sh -o _output/local/bin/linux/amd64/

(Remove the '-o _output/local/bin/linux/amd64/' part if you've not
previously compiled k8s)

Then it is neccessary to run a local docker registry:

  $ cd manifests/docker-registry
  $ ...edit pv-docker-registry.yaml to set storage location...
  $ ./create.sh

Now build the images and tag them into the registry

  $ make images
  $ for img in imagerepo nodeinfo virtd virtlod vmangel vmshim; \
    do \
      docker tag libvirtkube$img localhost:5000/libvirtkube$img; \
      docker push  localhost:5000/libvirtkube$img; \
    done

Finally it is possible to launch all the pieces

  $ cd manifests
  $ cd libvirt
  $ ....edit ds-libvirt.yaml to set the storage location at bottom...
  $ cd ..
  $ ./create.sh

In the manifests/virtmachine directory there are files which can
be used to create a virtual machine instance.

  $ cd manifests/virtmachine
  $ ....edit pv-rbd-demo1.yaml to set storage location....
  $ for f in *.yaml; \
    do \
      kubectl create -f $f; \
    done