Difficulty: beginner
Estimated Time: 10min

Containerized Data Importer (CDI) is an utility designed to import Virtual Machine images for use with Kubevirt.

In this lab you'll play with CDI to import an existing VM to be started under KubeVirt.

Well done, you have completed the KubeVirt demo!

We hope you enjoyed it, for more information about KubeVirt, please do check https://kubevirt.io!

Experiment with CDI

Step 1 of 2

Launch cluster and deploy KubeVirt

Wait for the Kubernetes cluster to be ready

Before we can start, we need to wait for the Kubernetes cluster to be ready (a command prompt will appear once it's ready).

Deploy KubeVirt

In this scenario, we'll go quickly over installing KubeVirt as it was covered already in the introduction scenario: 'First steps with KubeVirt'

We query GitHub's API to get the latest available release (click on the text to auto-execute the commands on the console):

export KUBEVIRT_VERSION=$(curl -s https://api.github.com/repos/kubevirt/kubevirt/releases/latest | jq -r .tag_name) echo $KUBEVIRT_VERSION

Run the following command to deploy the KubeVirt Operator:

kubectl create -f https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-operator.yaml

Now let's deploy KubeVirt by creating a Custom Resource that will trigger the 'operator' reaction and perform the deployment:

kubectl create -f https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-cr.yaml

Next, we need to configure KubeVirt to use software emulation for virtualization. This is necessary for the Katacoda environment, but results in poor performance, so avoid this step in production environments.

kubectl -n kubevirt patch kubevirt kubevirt --type=merge --patch '{"spec":{"configuration":{"developerConfiguration":{"useEmulation":true}}}}'

Let's check the deployment:

kubectl get kubevirt -n kubevirt

It will take a while until all the pods are running. Retry the command until the output states that kubevirt is "Deployed".

Once the kubevirt resource is deployed, view the pods created by the deployment.

kubectl get pods -n kubevirt

It will show something similar to:

controlplane $ kubectl get pods -n kubevirt
NAME                               READY     STATUS    RESTARTS   AGE
virt-api-7fc57db6dd-g4s4w          1/1       Running   0          3m
virt-api-7fc57db6dd-zd95q          1/1       Running   0          3m
virt-controller-6849d45bcc-88zd4   1/1       Running   0          3m
virt-controller-6849d45bcc-cmfzk   1/1       Running   0          3m
virt-handler-fvsqw                 1/1       Running   0          3m
virt-operator-5649f67475-gmphg     1/1       Running   0          4m
virt-operator-5649f67475-sw78k     1/1       Running   0          4m

Install Virtctl

virtctl is a client utility that helps interact with VM's (start/stop/console, etc):

wget -O virtctl https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/virtctl-${KUBEVIRT_VERSION}-linux-amd64

chmod +x virtctl

Now everything is ready to continue and prepare CDI for launching a VM.