Kubernetes CronJob publishing to a PubSub topic

every-5-minutes.cron.yaml

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: monthly-late-fee-rent
spec:
  schedule: "0 6 1 * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: monthly-late-fee-rent
            image: google/cloud-sdk:183.0.0-slim
            args:
            - /bin/sh
            - -c
            - gcloud beta pubsub topics publish monthly-late-fee-rent-job --message="{\"lastMonth\": $(date --date='last month' +%-m), \"thisMonth\": $(date +%-m)}"
          restartPolicy: OnFailure