pre-stop.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: pre-stop
  labels:
    app: pre-stop
spec:
  replicas: 1
  revisionHistoryLimit: 2
  selector:
    matchLabels:
      app: pre-stop
  template:
    metadata:
      labels:
        app: pre-stop
    spec:
      terminationGracePeriodSeconds: 60
      volumes:
        - name: tmp
          emptyDir: {}
      containers:
        - name: pre-stop
          resources:
            requests:
              cpu: 20m
              memory: 10Mi
            limits:
              cpu: 20m
              memory: 10Mi
          image: docker.io/alpine:3.18.4
          imagePullPolicy: IfNotPresent
          command:
            - /bin/sh
            - -c 
            - |
              _term() { 
                 cat /tmp/lifehook_logs
                 echo "`date +%F' '%H:%M:%S`: Caught SIGTERM signal"
                 exit 0
              }
              trap _term SIGTERM

              echo "`date +%F' '%H:%M:%S`: Start app"
              while true;
              do
                sleep 1
              done

          lifecycle:
            preStop:
              exec:
                command:
                  - /bin/sh
                  - -c
                  - |
                    echo "`date +%F' '%H:%M:%S`: start preStop" > /tmp/lifehook_logs
                    sleep 10
          volumeMounts:
          - name: tmp
            mountPath: /tmp