☁️ Cloudflare Edge Worker to relay Health Check messages to Splunk On-Call (FKA Victorops)

graph TD;
	A[Cloudflare Health Check] -- unhealthy --> B[Relay Worker];
	A -- healthy --> B;
	B -- critical --> C[Splunk On Call];
	B -- recovery --> C;

I'm using fake keys and domain names in this document

Retreive your API key from Splunk On-Call:

https://alert.victorops.com/integrations/generic/20131114/alert/e948df8a-1579-4fd0-85f1-985edfa98950/$routing_key

Create an edge worker with the name health-check-to-splunk-on-call (suggestion)

Configure a notification destination webhook on Cloudflare

• Name: Descriptive name
• URL: https://health-check-to-splunk-on-call.my-worker-subdomain.workers.dev/<ROUTING_KEY>
• Secret: Splunk On-Call API key

Use the API key from Splunk On-Call as the secret:

• name: [String] Notification name
• text: [String] Check name, Check ID, Time, Status
• data:
  • time: [String] 'YYYY-MM-DD HH:mm:ss +0000 UTC'
  • status: Healthy | Unhealthy
  • reason: [String] Response code mismatch error, No failure
  • name: [String] test_name
  • health_check_id: [String]
  • … more arbitrary information

Splunk On-Call REST endpoint documentation

• message_type: CRITICAL | WARNING | ACKNOWLEDGEMENT | INFO | RECOVERY
• entity_id: [String]
• entity_display_name: [String]
• state_message: [String]
• state_start_time: [Number] (Linux/Unix time)

Add the Splunk relay destination to your notification.

Make sure you choose "Becomes healthy or unhealthy" to ensure incidents will be automatically resolved when applicable.