Verify Virtlet after deployment¶

After you enable Virtlet as described in Deploy Virtlet, proceed with the verification procedure described in this section.

To verify Virtlet after deployment:

1. Verify a basic pod startup:

   1. Start a sample VM:

      kubectl create -f https://raw.githubusercontent.com/Mirantis/virtlet/v1.4.4/examples/cirros-vm.yaml
      kubectl get pods --all-namespaces -o wide -w
      

   2. Connect to the VM console:

      kubectl attach -it cirros-vm
      

      If you do not see a command prompt, press Enter.

      Example of system response:

      login as 'cirros' user. default password: 'gosubsgo'. use 'sudo' for root.
      cirros-vm login: cirros
      Password:
      $
      

      To quit the console, use the ^] key combination.

2. Verify SSH access to the VM pod:

   1. Download the vmssh.sh script with the test SSH key:

      wget https://raw.githubusercontent.com/Mirantis/virtlet/v1.4.4/examples/{vmssh.sh,vmkey}
      chmod +x vmssh.sh
      chmod 600 vmkey
      

      Note

      The vmssh.sh script requires kubectl to access a cluster.

   2. Access the VM pod using the vmssh.sh script:

      ./vmssh.sh cirros@cirros-vm
      

3. Verify whether the VM can access the Kubernetes cluster services:

   1. Verify the DNS resolution of the cluster services:

      nslookup kubernetes.default.svc.cluster.local
      

   2. Verify the service connectivity:

      curl -k https://kubernetes.default.svc.cluster.local
      

      Note

      The above command will raise an authentication error. Ignore this error.

   3. Verify Internet access from the VM. For example:

      curl -k https://google.com
      ping -c 1 8.8.8.8