GCP Google Cloud Platform - Synthetic Monitor Brokenlink Checker

Step-01: Introduction¶

Learn to create Brokenlink Checker using Cloud Synthetic Monitoring

Step-02: Synthetic Monitoring - Broken-link Checker Template¶

Go to Cloud Monitoring -> Detect -> Synthetic Monitoring -> CREATE SYNTHETIC MONITOR
Name: synthetic-monitor-brokenlink-checker
Response timeout: 30 seconds
Check Frequency: 1 minute

URI configuration¶

ORIGIN URI: https://stacksimplify.com
REST ALL LEAVE TO DEFAULTS

Cloud Function¶

Function name: synthetic-monitor-brokenlink-checker-1
Region: us-central1

REST ALL LEAVE TO DEFAULTS

// [START monitoring_synthetic_monitoring_broken_links_invocation]

const functions = require('@google-cloud/functions-framework');
const GcmSynthetics = require('@google-cloud/synthetics-sdk-broken-links');

const options = {
  origin_uri: 'https://stacksimplify.com',
  link_limit: 10,
  query_selector_all: 'a',
  wait_for_selector: '',
  get_attributes: ["href"],
  link_order: 'FIRST_N',
  link_timeout_millis: 30000,
  max_retries: 0,
  per_link_options: {
    },
  total_synthetic_timeout_millis: 60000,
  screenshot_options: {
        capture_condition: 'FAILING',
        storage_location: ''
    },
};

functions.http('BrokenLinkChecker', GcmSynthetics.runBrokenLinksHandler(options));

// [END monitoring_synthetic_monitoring_broken_links_invocation]

Click on APPLY FUNCTION

Alerts and notifications¶

Create Alert: enable
Alert name: synthetic failure mocha template
Alert Duration: 1 minute
Notification Channels: gcpuser08
Click on CREATE

Step-03: Verify Cloud Function¶

WAIT FOR 5 MINUTES FOR CLOUD FUNCTION TO GET DEPLOYED AND READY
Go to Cloud Functions

Step-04: Verify Synthetic monitor¶

Go to Cloud Monitoring -> Detect -> Synthetic Monitoring

Step-05: Verify Alert Policies¶

Go to Cloud Monitoring -> Detect -> Alerting -> Policies

Step-06: Clean-up¶

# Delete Synthetic Monitors
Go to Cloud Monitroing -> Detect -> Synthetic Monitoring
1. synthetic-monitor-custom-script
2. synthetic-monitor-mocha-template
3. synthetic-monitor-brokenlink-checker

# Delete Cloud Functions
Go to Cloud Functions -> 
1. synthetic-monitor-custom-script-1
2. synthetic-monitor-mocha-template-1
3. synthetic-monitor-brokenlink-checker-1