cron.yaml

kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: jp-runner
rules:
  - apiGroups:
      - extensions
      - apps
    resources:
      - deployments
    verbs:
      - 'get'

---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: jp-runner
subjects:
  - kind: ServiceAccount
    name: sa-jp-runner
roleRef:
  kind: Role
  name: jp-runner
  apiGroup: ""

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: sa-jp-runner

---
apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: available-pods-check
spec:
  schedule: "*/5 * * * *"
  successfulJobsHistoryLimit: 0
  jobTemplate:
    spec:
      template:
        spec:
          serviceAccountName: sa-jp-runner
          containers:
            - name: available-pods-check
              image: bitnami/kubectl:latest
              env:
              - name: CHANNEL
                value: "#your-monitoring-channel"
              - name: WEBHOOK
                value: "https://hooks.slack.com/services/..."
              command: ["/scripts/available-pods-check.sh"]
              volumeMounts:
                - name: available-pods-check
                  mountPath: /scripts
          volumes:
            - name: available-pods-check
              configMap:
                name: available-pods-check
                defaultMode: 0777
          restartPolicy: OnFailure