Monitoring

This module adds a new area under the Extra Tools menu called Monitoring, with two screens: Scripts and Groups.

• In Scripts you create individual checks. Each check has a name, a token (a unique code used in the URL), a check type (expect True, expect False, expect Lower or expect Higher), an optional warning and critical threshold, and a small piece of logic that produces a result. The check is evaluated and gets a state of OK, Warning or Critical.

• In Groups you bundle several checks together. A group also has its own token and shows an overall state: Critical if any active check is critical, Warning if any is warning, OK if all are fine, otherwise Unknown. A Validate button runs all checks in the group immediately.

External monitoring software can call the URL /monitoring/ followed by a group or script token to get a JSON answer with the status and details of the checks. No login is required for that URL.

A scheduled job named Monitoring exists but is disabled by default; when enabled it runs every 5 minutes and can send an email using a chosen mail template when a group is in Warning or Critical state. The module is restricted to system administrators and touches the monitoring and monitoring.script models.