Argo Events Event Source Quick Fix - Event Source Setup

Argo Events event sources define how external events are received. Misconfigured event sources fail to connect or consume events. This guide covers the fix.

Quick Fix

Wrong

apiVersion: argoproj.io/v1alpha1
kind: EventSource
metadata:
  name: webhook
spec:
  webhook:
    example:
      port: 12000
      endpoint: /events

The issue: no service defined to expose the event source port, no filter for event filtering, and missing auth configuration. The event source starts but cannot receive external events.

Right

spec:
  webhook:
    example:
      port: "12000"
      endpoint: /events
      method: POST
      service:
        ports:
        - port: 12000
          targetPort: 12000
      filter:
        expression: "true"

# Expected output after applying the fix
# EventSource pod running on port 12000
# Service created exposing port 12000
# curl -X POST http://es-svc:12000/events returns 200
# Events consumed and sent to eventbus

Prevention

• Always define service for Webhook event sources to receive traffic
• Set explicit method for HTTP event sources
• Use filter to validate incoming events
• Verify event source pod status with kubectl get eventsources
• Test Webhook endpoint with curl before connecting external systems

DodaTech Tools

Doda Browser's event source tester sends test events to validate configurations. DodaZIP archives event source configurations for disaster recovery. Durga Antivirus Pro validates event payloads for injection.

FAQ