You have a Docker image stored in Artifact Registry. You want to deploy this image as a highly available application on an existing GKE cluster. You need to ensure that at least 3 replicas of the application are running at all times.

Which Kubernetes resource should you create?

In Kubernetes, a Deployment is the standard resource used to deploy stateless applications. You specify the container image and the desired number of replicas (e.g., 3). The Deployment controller continuously monitors the state of the cluster and ensures that exactly 3 replicas are running. If a node fails and a pod dies, the Deployment automatically schedules a new pod on a healthy node.