Simple Workload

Creating a sample Confidential Containers workload

Once you’ve used the operator to install Confidential Containers, you can run a pod with CoCo by simply adding a runtime class. First, we will use the kata-qemu-coco-dev runtime class which uses CoCo without hardware support. Initially we will try this with an unencrypted container image.

In this example, we will be using the bitnami/nginx image as described in the following yaml:

apiVersion: v1
kind: Pod
metadata:
  labels:
    run: nginx
  name: nginx
  annotations:
    io.containerd.cri.runtime-handler: kata-qemu-coco-dev
spec:
  containers:
  - image: bitnami/nginx:1.22.0
    name: nginx
  dnsPolicy: ClusterFirst
  runtimeClassName: kata-qemu-coco-dev

For the most basic workloads, setting the runtimeClassName and runtime-handler annotation is usually the only requirement for the pod YAML.

Create a pod YAML file as previously described (we named it nginx.yaml) .

Create the workload:

kubectl apply -f nginx.yaml

Output:

pod/nginx created

Ensure the pod was created successfully (in running state):

kubectl get pods

Output:

NAME    READY   STATUS    RESTARTS   AGE
nginx   1/1     Running   0          3m50s