Kubernetes Deployments

$ cat <<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: quarkus-demo-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: quarkus-demo
  template:
    metadata:
      labels:
        app: quarkus-demo
        env: dev
    spec:
      containers:
      - name: quarkus-demo
        image: quay.io/burrsutter/quarkus-demo:1.0.0
        imagePullPolicy: Always
        ports:
        - containerPort: 8080
EOF

$ kubectl get pods --show-labels
NAME                                       READY   STATUS    RESTARTS   AGE     LABELS
quarkus-demo-deployment-5979886fb7-4xbpb   1/1     Running   0          2m29s   app=quarkus-demo,env=dev,pod-template-hash=5979886fb7
quarkus-demo-deployment-5979886fb7-nrptt   1/1     Running   0          2m29s   app=quarkus-demo,env=dev,pod-template-hash=5979886fb7
quarkus-demo-deployment-5979886fb7-ntrpd   1/1     Running   0          2m29s   app=quarkus-demo,env=dev,pod-template-hash=5979886fb7

$ kubectl get deployments
NAME                      READY   UP-TO-DATE   AVAILABLE   AGE
quarkus-demo-deployment   3/3     3            3           3m24s

$ kubectl get replicaset
NAME                                 DESIRED   CURRENT   READY   AGE
quarkus-demo-deployment-5979886fb7   3         3         3       3m52s

$ kubectl scale deploy quarkus-demo-deployment --replicas=6

$ kubectl delete deploy quarkus-demo-deployment