🌡️HealthChecks.io

Healthchecks.io – Cron Job MonitoringHealthchecks.io

Used to monitor if Prometheus and Alertmanager are running, and if the entire machine is offline or unresponsive.

sudo vim /etc/default/healthchecks.sh

• Edit UNIQUE_ID

#!/bin/bash

# Healthchecks.io URL
# ***********
# CHANGE HERE
# ↓↓↓↓↓↓↓↓↓↓↓
healthchecks_io_url="https://hc-ping.com/<UNIQUE_ID>"

# URLs for the health endpoints of Prometheus and Alertmanager
prometheus_health_url="http://localhost:9090/-/healthy"
alertmanager_health_url="http://localhost:9093/-/healthy"

# Check health of Prometheus
if curl -f ${prometheus_health_url}; then
  # Check health of Alertmanager
  if curl -f ${alertmanager_health_url}; then
    # Send heartbeat to Healthchecks.io
    curl -fsS --retry 3 ${healthchecks_io_url} > /dev/null
  else
    echo "Alertmanager is not healthy."
  fi
else
  echo "Prometheus is not healthy."
fi

sudo chmod u+x /etc/default/healthchecks.sh

Configure CRON

• Run every 5 minutes.

sudo crontab -e

*/5 * * * * /etc/default/healthchecks.sh

Integrations

Integrates with PagerDuty for alerts.