Local Kubevirt

local_kubevirt.md

Kubevirt Overview

Kubevirt Installation

wget -O /tmp/oc.tar.gz https://github.com/openshift/origin/releases/download/v3.9.0/openshift-origin-client-tools-v3.9.0-191fece-linux-64bit.tar.gz
tar -C ~/bin/ -xvzf /tmp/oc.tar.gz
mv openshift-origin-client-tools-*/oc .
chmod 755 oc
curl -L https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl -o ~/bin/kubectl
chmod 755 ~/bin/kubectl
rm -rf openshift-origin-client-tools-*

export IP=`ip a l wlp4s0 | grep 'inet ' | cut -d' ' -f6 | awk -F'/' '{ print $1}'`
oc cluster up --public-hostname $IP.xip.io --routing-suffix $IP.xip.io
oc login -u system:admin
docker update --restart=always origin

oc adm policy add-cluster-role-to-user cluster-admin developer
VERSION="v0.5.0"
oc project kube-system
oc adm policy add-scc-to-user privileged -z kubevirt-privileged
oc adm policy add-scc-to-user privileged -z kubevirt-controller
oc adm policy add-scc-to-user hostmount-anyuid -z kubevirt-iscsi

mkdir -p ~/projects/kubevirt && cd ~/projects/kubevirt
wget https://github.com/kubevirt/kubevirt/releases/download/$VERSION/kubevirt.yaml -O ~/projects/kubevirt/kubevirt.yaml
wget https://github.com/kubevirt/kubevirt/releases/download/$VERSION/virtctl-$VERSION-linux-amd64 -O ~/bin/virtctl
chmod u+x /usr/bin/virtctl
oc create -f kubevirt.yaml
oc project default

Kubevirt usage

• Create VM and manage it

oc create -f vm-fedora.yaml
virtctl console vm-fedora
virtctl vnc vm-fedora
oc get vms

• Create ovm and manage it

oc create -f ovm-fedora.yaml
virtctl stop/start ovm-fedora
virtctl vnc ovm-fedora
oc get ovms

ovm-fedora.yaml

apiVersion: kubevirt.io/v1alpha1
kind: OfflineVirtualMachine
metadata:
  creationTimestamp: null
  labels:
    kubevirt.io/ovm: ovm-fedora
  name: ovm-fedora
spec:
  running: false
  template:
    metadata:
      creationTimestamp: null
      labels:
        kubevirt.io/ovm: ovm-fedora
    spec:
      domain:
        devices:
          disks:
          - disk:
              bus: virtio
            name: registrydisk
            volumeName: registryvolume
          - disk:
              bus: virtio
            name: cloudinitdisk
            volumeName: cloudinitvolume
        machine:
          type: ""
        resources:
          requests:
            memory: 1024M
      terminationGracePeriodSeconds: 0
      volumes:
      - name: registryvolume
        registryDisk:
          image: kubevirt/fedora-cloud-registry-disk-demo:latest
      - cloudInitNoCloud:
          userData: |-
            #cloud-config
            password: fedora
            chpasswd: { expire: False }
        name: cloudinitvolume
status: {}

vm-fedora.yaml

```yaml
apiVersion: kubevirt.io/v1alpha1
kind: VirtualMachine
metadata:
  creationTimestamp: null
  name: vm-fedora
spec:
  domain:
    devices:
      disks:
      - disk:
          bus: virtio
        name: registrydisk
        volumeName: registryvolume
      - disk:
          bus: virtio
        name: cloudinitdisk
        volumeName: cloudinitvolume
    machine:
      type: ""
    resources:
      requests:
        memory: 1024M
  terminationGracePeriodSeconds: 0
  volumes:
  - name: registryvolume
    registryDisk:
      image: kubevirt/fedora-cloud-registry-disk-demo:latest
  - cloudInitNoCloud:
      userData: |-
        #cloud-config
        password: fedora
        chpasswd: { expire: False }
    name: cloudinitvolume
status: {}
```