Kubernetes CronJob

Wrap the container command so every run reports.

Wrap the container's command so every run reports. The simplest form needs only curl in the image:

apiVersion: batch/v1
kind: CronJob
metadata:
  name: cleanup
spec:
  schedule: "*/30 * * * *"
  jobTemplate:
    spec:
      template:
        spec:
          restartPolicy: Never
          containers:
            - name: cleanup
              image: ghcr.io/example/cleanup:latest
              env:
                - name: VIVERE_PING_URL
                  valueFrom:
                    secretKeyRef: { name: vivere, key: ping-url }
              command: ["/bin/sh", "-c"]
              args:
                - |
                  curl -fsS -m 10 "$VIVERE_PING_URL/start" || true
                  /app/cleanup; code=$?
                  curl -fsS -m 10 "$VIVERE_PING_URL/$code" || true
                  exit $code

With the vivere binary copied into the image (COPY --from=… /vivere /usr/local/bin/), it becomes command: ["vivere", "run", "--", "/app/cleanup"] and the output is captured too.

Put the ping URL in a Secret rather than the manifest; it is the only credential a monitor has.