zdravko/internal/handlers/examples.yaml

# Example trigger code
trigger: |
  import kv from 'zdravko/kv';
  import incidents, { severity } from 'zdravko/incidents';

  // Only execute on this specific targets.
  export function filter(target) {
    return target.tags.kind === 'http';
  }

  const getMinute = (date) => {
    return Math.floor(date.getTime() / 1000 / 60);
  }

  const get5LastMinutes = (date) => {
    const currentMinute = getMinute(date);
    return Array.from({ length: 5 }, (_, i) => {
      const minute = currentMinute - i;
      if (minute < 0) {
        return 60 - minute;
      }
      return minute;
    });
  }

  // This trigger will check if there were more than 5 issues in last
  // 5 minutes, if so it will create a critical incident.
  export default function (target, monitor, outcome) {
    // If the outcome is not failure, we close any potential incidents.
    if (outcome.status !== 'FAILURE') {
      incidents.close(target, monitor);
      return;
    }

    const date = new Date();

    let total = 0;
    for (const minute of get5LastMinutes(date)) {
      const count = kv.get(`${monitor.name}:issues:${minute}`) || 0;
      total += count;
    }

    // If there are more than 5 issues in the last 5 minutes, create a critical incident.
    if (total > 5) {
      incidents.create(
        target,
        monitor,
        severity.CRITICAL,
        `More than 5 issues in the last 5 minutes.`,
        { special: "tags" }
      );
    // Else we would close any potential incidents. If non exist, that's ok.
    } else {
      incidents.close(target, monitor);
    }

    // Increment and set TTL to 5 minutes
    const minute = getMinute(date);
    kv.increment(`${monitor.name}:issues:${minute}`, 5 * 60);
  }  

# Example monitor code
check: |
  import http from 'k6/http';

  export const options = {
    thresholds: {
      // http errors should be less than 1%
      http_req_failed: ['rate<0.01'],
    },
  };

  // Filter out only HTTP targets.
  export function filter(target) {
    return target.tags.kind === "http";
  };

  // Execute the check on the targets.
  export default function (target) {
    http.get(target.url);
  }