Integrations

Kubernetes

Monitor CronJobs by adding a ping to your Job spec. Catches missed schedules, scheduling failures, and stuck jobs.

DeadPing monitors Kubernetes CronJobs by adding a ping sidecar or post-run curl to each job. This detects missed schedules, stuck jobs, and the Kubernetes behavior where CronJobs are permanently suspended after missing 100 consecutive schedules.

CronJob with Ping

cronjob.yaml

apiVersion: batch/v1
kind: CronJob
metadata:
  name: nightly-backup
spec:
  schedule: "0 2 * * *"
  startingDeadlineSeconds: 600
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      template:
        spec:
          containers:
            - name: backup
              image: my-backup-image:latest
              command:
                - /bin/sh
                - -c
                - |
                  set -euo pipefail
                  pg_dump "$DATABASE_URL" | gzip > /backups/db.sql.gz
                  curl -fsS --retry 3 https://deadping.io/api/ping/$DEADPING_TOKEN
              env:
                - name: DATABASE_URL
                  valueFrom:
                    secretKeyRef:
                      name: db-credentials
                      key: url
                - name: DEADPING_TOKEN
                  valueFrom:
                    secretKeyRef:
                      name: deadping
                      key: ping-token
          restartPolicy: OnFailure

Creating the Secret

bash

kubectl create secret generic deadping \
  --from-literal=ping-token=YOUR_PING_TOKEN \
  --from-literal=api-key=dp_live_abc123...

Helm Values Pattern

values.yaml

deadping:
  enabled: true
  pingToken: ""  # Set via --set or external secret
  apiKey: ""     # Set via --set-string or external secret