random_update_strategy.yaml

apiVersion: upgrademgr.keikoproj.io/v1alpha1
kind: RollingUpgrade
metadata:
  generateName: rollingupgrade-sample-
spec:
  asgName: my-asg-1
  nodeIntervalSeconds: 300
  preDrain:
    script: |
      kubectl get pods --all-namespaces --field-selector spec.nodeName=${INSTANCE_NAME}
  postDrain:
    script: |
      echo "Pods at PostDrain:"
      kubectl get pods --all-namespaces --field-selector spec.nodeName=${INSTANCE_NAME}
    waitSeconds: 90
    postWaitScript: |
      echo "Pods at postWait:"
      kubectl get pods --all-namespaces --field-selector spec.nodeName=${INSTANCE_NAME}
  postTerminate:
    script: |
      echo "PostTerminate:"
      kubectl get pods --all-namespaces
  strategy:
    type: "randomUpdate"
    maxUnavailable: "100%"
    drainTimeout: 120