# Custom command examples.
# Exit code convention: 0 = online, 1 = degraded, anything else = offline.

widgets:
  # Health endpoint that returns HTTP 200
  - type: custom_cmd
    name: App health
    cmd: curl -sf https://myapp.example.com/health > /dev/null && exit 0 || exit 2

  # Disk space on a non-root mount
  - type: custom_cmd
    name: Disk /backup
    cmd: |
      PCT=$(df /backup | awk 'NR==2{gsub(/%/,"",$5); print $5}')
      [ "$PCT" -gt 90 ] && exit 2
      [ "$PCT" -gt 80 ] && exit 1 || exit 0

  # SSL certificate expiry (degraded < 14 days, offline < 3 days)
  - type: custom_cmd
    name: SSL expiry
    cmd: |
      DAYS=$(echo | openssl s_client -connect myapp.example.com:443 2>/dev/null \
        | openssl x509 -noout -enddate 2>/dev/null \
        | sed 's/notAfter=//' \
        | xargs -I{} python3 -c "import datetime; e=datetime.datetime.strptime('{}','%b %d %H:%M:%S %Y %Z'); print((e-datetime.datetime.utcnow()).days)" 2>/dev/null)
      [ -z "$DAYS" ] && exit 2
      [ "$DAYS" -lt 3 ] && exit 2
      [ "$DAYS" -lt 14 ] && exit 1 || exit 0

  # Systemd service check
  - type: custom_cmd
    name: my-service.service
    cmd: systemctl is-active --quiet my-service && exit 0 || exit 2