One of the most common Kubernetes object is the deployment object. The deployment object defines the container spec required, along with the name and labels used by other parts of Kubernetes to discover and connect to the application.
Copy the following definition to the editor. The definition defines how to launch an application called webapp1 using the Docker Image katacoda/docker-http-server that runs on Port 80.
apiVersion: extensions/v1beta1 kind: Deployment metadata: name: webapp1 spec: replicas: 1 template: metadata: labels: app: webapp1 spec: containers: - name: webapp1 image: katacoda/docker-http-server:latest ports: - containerPort: 80
This is deployed to the cluster with the command
kubectl create -f deployment.yaml
As it's a Deployment object, a list of all the deployed objects can be obtained via
kubectl get deployment
Details of individual deployments can be outputted with
kubectl describe deployment webapp1