Webhook support for notification provider

[3keyroman]

Overview

Implement webhook support for the notification provider to enable event-driven integrations and automation. This feature will allow configurable webhook triggers, enhancing interoperability with external systems that support incoming webhooks.

Use Cases

• Incident Management: Automatically create system tickets for critical events, such as certificate or cryptographic key expiration.
• Escalation & Alerts: Escalate events based on severity and trigger automated workflows.
• Automation Platform Integration: Seamlessly connect with services like Zapier and Make for workflow automation.

Implementation Requirements

Webhook configuration should support sending requests to a specified URL with the following security options:

• Basic Authentication (Authorization header)
• Signature Header (e.g., HMAC-based signing for verification)
• API Key Authentication
• mTLS (Mutual TLS) for secure communication
• Timestamp Header to prevent replay attacks

These security mechanisms should be configurable and combinable as needed.