add an example for VirtletLibvirtCPUSetting

Signed-off-by: yanxuean <yan.xuean@zte.com.cn>

examples/ubuntu-vm-with-libvirt-cpusetting.yaml

@@ -0,0 +1,43 @@
+# This example is ubuntu-vm.yaml one extended with cpu setting by libvirt domain definition
+apiVersion: v1
+kind: Pod
+metadata:
+ name: ubuntu-vm-with-nested-virtualization
+ annotations:
+ kubernetes.io/target-runtime: virtlet.cloud
+ VirtletSSHKeys: |
+ ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCaJEcFDXEK2ZbX0ZLS1EIYFZRbDAcRfuVjpstSc0De8+sV1aiu+dePxdkuDRwqFtCyk6dEZkssjOkBXtri00MECLkir6FcH3kKOJtbJ6vy3uaJc9w1ERo+wyl6SkAh/+JTJkp7QRXj8oylW5E20LsbnA/dIwWzAF51PPwF7A7FtNg9DnwPqMkxFo1Th/buOMKbP5ZA1mmNNtmzbMpMfJATvVyiv3ccsSJKOiyQr6UG+j7sc/7jMVz5Xk34Vd0l8GwcB0334MchHckmqDB142h/NCWTr8oLakDNvkfC1YneAfAO41hDkUbxPtVBG5M/o7P4fxoqiHEX+ZLfRxDtHB53 me@localhost
+ # Set VirtletCPUModel to host-model to enable nested virtualization
+ VirtletCPUModel: host-model
+ # Set VirtletLibvirtCPUSetting to directly use cpu definition of libvirt
+ # for "mode": host-model, host-passthrough,custom
+ # for "model": Westmere, SandyBridge, etc. see file: /usr/local/share/libvirt/cpu_map.xml
+ # The VirtletLibvirtCPUSetting take precedence over VirtletCPUModel.
+ VirtletLibvirtCPUSetting: |
+ mode: custom
+ model:
+ value: Westmere
+ features:
+ - name: avx
+ policy: disable
+spec:
+ affinity:
+ nodeAffinity:
+ requiredDuringSchedulingIgnoredDuringExecution:
+ nodeSelectorTerms:
+ - matchExpressions:
+ - key: extraRuntime
+ operator: In
+ values:
+ - virtlet
+ # This is the number of seconds Virtlet gives the VM to shut down cleanly.
+ # The default value of 30 seconds is ok for containers but probably too
+ # low for VM, so overriding it here is strongly advised.
+ terminationGracePeriodSeconds: 120
+ containers:
+ - name: ubuntu-vm
+ image: virtlet.cloud/cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img
+ imagePullPolicy: IfNotPresent
+ # tty and stdin required for `kubectl attach -t` to work
+ tty: true
+ stdin: true