如何使用kubevirt运行一个ubuntu虚拟机

安装

local-path

kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/v0.0.32/deploy/local-path-storage.yaml

kubevirt operator

VERSION=v1.6.2
kubectl create -f "https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/kubevirt-operator.yaml"

kubevirt

VERSION=v1.6.2
kubectl create -f "https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/kubevirt-cr.yaml"
kubectl -n kubevirt patch kubevirt kubevirt --type=merge --patch '{"spec":{"configuration":{"developerConfiguration":{"useEmulation":true}}}}'

virtctl

VERSION=v1.6.2
ARCH=amd64
curl -L -o virtctl https://github.com/kubevirt/kubevirt/releases/download/${VERSION}/virtctl-${VERSION}-${ARCH}
chmod +x virtctl
cp virtctl /usr/bin/virtctl

cdi operator

export VERSION=v1.63.1
kubectl create -f https://github.com/kubevirt/containerized-data-importer/releases/download/$VERSION/cdi-operator.yaml

cdi

export VERSION=v1.63.1
kubectl create -f https://github.com/kubevirt/containerized-data-importer/releases/download/$VERSION/cdi-cr.yaml

demo

datavolume

apiVersion: cdi.kubevirt.io/v1beta1
kind: DataVolume
metadata:
  name: ubuntu
  annotations:
    cdi.kubevirt.io/storage.bind.immediate.requested: "true"
spec:
  source:
    http:
      url: "https://cloud-images.ubuntu.com/jammy/20251017/jammy-server-cloudimg-amd64.img"
  pvc:
    storageClassName: local-path
    accessModes:
      - ReadWriteOnce
    resources:
      requests:
        storage: 10Gi

virtualmachine

apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
  name: testvm
spec:
  runStrategy: Halted
  template:
    spec:
      domain:
        devices:
          disks:
            - name: rootdisk
              disk:
                bus: virtio
            - disk:
                bus: virtio
              name: cloudinitdisk
          interfaces:
          - name: default
            masquerade: {}
        resources:
          requests:
            memory: 4000M
      networks:
      - name: default
        pod: {}
      volumes:
        - name: rootdisk
          dataVolume:
            name: ubuntu
        - name: cloudinitdisk
          cloudInitNoCloud:
            userData: |
              #cloud-config
              bootcmd:
              - cloud-init clean -c all
              password: wwqtest
              chpasswd:
                expire: false
              ssh_pwauth: true

操作

开机
virtctl start testvm
关机
virtctl stop testvm
console
virtctl console testvm
ssh(vmip替换为实际的ip,密码为上面的myvm)
ssh ubuntu@${vmip}

补充

ubuntu qcow2镜像下载地址

https://cloud-images.ubuntu.com/jammy/20251017/

系统qciw2镜像下载地址集合

https://docs.openstack.org/image-guide/obtain-images.html

cloud init

https://cloudinit.readthedocs.io/en/latest/index.html