How can you specify a preStop handler for KubernetesPodOperator?

[saikarthikp9]

I am trying to run a shell script using the preStop handler when the pod (A) is killed. I would also need to specify the terminationGracePeriodSeconds, although the default of 30 seconds should work in this case.

Purpose:
I want to delete some other running pods. These pods were created by pod A. I will be using helm uninstall to terminate these pods.

References:
Intro to handlers: https://kubernetes.io/docs/tasks/configure-pod-container/attach-handler-lifecycle-event/

Example usage of preStop handler:
apiVersion: apps/v1 kind: Deployment metadata: creationTimestamp: null labels: run: busybox name: busybox spec: replicas: 1 selector: matchLabels: run: busybox strategy: {} template: metadata: creationTimestamp: null labels: run: busybox spec: containers: - image: temp-test:local name: busybox command: ["httpd"] args: ["-p", "8080", "-f", "-v"] ports: - containerPort: 8080 **lifecycle: preStop: exec: command: ["/bin/pre-stop.sh"]** resources: {}
example above taken from: kubernetes/kubernetes#91326