Monitor systemd Timers with CronRabbit

The Problem

systemd timers are the modern replacement for cron on Linux, but failures are buried in journalctl logs. You need proactive alerting, not reactive log-diving.

The Solution

Add a CronRabbit ping to your systemd service unit's ExecStart command or use ExecStartPost for non-intrusive monitoring.

systemd Timers vs Cron

systemd timers offer better logging, dependency management, and resource control. But they still lack built-in external alerting. CronRabbit fills this gap.

Integration Methods

Method 1: Append curl to your ExecStart command. Method 2: Use ExecStartPost for a separate monitoring step. Method 3: Wrap your script with monitoring.

Code Examples

systemd service with monitoring

Bash

[Unit]
Description=Nightly database backup

[Service]
Type=oneshot
ExecStart=/usr/local/bin/backup.sh
ExecStartPost=/usr/bin/curl -fsS -m 10 --retry 5 --retry-all-errors https://ping.cronrabbit.com/your-id

Corresponding timer unit

Bash

[Unit]
Description=Run backup nightly

[Timer]
OnCalendar=*-*-* 02:00:00
Persistent=true

[Install]
WantedBy=timers.target

Related Guides

Shell & Bash

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