feat: Add Kubernetes manifest (#504)

apiVersion: v1

kind: PersistentVolumeClaim

metadata:

  name: qemu-pvc

spec:

  accessModes:

    - ReadWriteOnce

  resources:

    requests:

      storage: 16Gi

---

apiVersion: v1

kind: Pod

metadata:

  name: qemu

  labels:

    name: qemu

spec:

  terminationGracePeriodSeconds: 120 # the Kubernetes default is 30 seconds and it may be not enough

  containers:

    - name: qemu

      image: qemux/qemu-docker

      ports:

        - containerPort: 8006

          protocol: TCP

      resources:

        limits:

          devices.kubevirt.io/kvm: 1

      securityContext:

        privileged: true

      env:

        - name: BOOT

          value: "https://dl-cdn.alpinelinux.org/alpine/v3.19/releases/x86_64/alpine-virt-3.19.1-x86_64.iso"

        - name: RAM_SIZE

          value: 1G

        - name: CPU_CORES

          value: "1"

        - name: DISK_SIZE

          value: "16G"

      volumeMounts:

        - mountPath: /storage

          name: storage

  volumes:

    - name: storage

      persistentVolumeClaim:

        claimName: qemu-pvc

---

apiVersion: v1

kind: Service

metadata:

  name: qemu

spec:

  type: NodePort

  selector:

    name: qemu

  ports:

    - name: tcp-8006

      protocol: TCP

      port: 8006

      targetPort: 8006

      nodePort: 48006

docker run -it --rm --name qemu -e "BOOT=http://example.com/image.iso" -p 8006:8006 --device=/dev/kvm --cap-add NET_ADMIN qemux/qemu-docker

```

Via Kubernetes:

```shell

kubectl apply -f kubernetes.yml

```

## FAQ

* ### How do I use it?