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NATS Gateway & Sensor

NATS subjects act as event sources for gateway

  1. Example event sources definition
  2. Install gateway
  3. Install sensor
  4. Trigger Workflow

Example event sources definition

apiVersion: v1
kind: ConfigMap
metadata:
 name: nats-gateway-configmap
data:
 foo: |-
   url: nats://nats.argo-events:4222 # nats service
   subject: foo # subject to listen to

Create gateway event sources

kubectl -n argo-events create -f  https://github.com/argoproj/argo-events/blob/master/examples/gateways/nats-gateway-configmap.yaml

Install gateway

  1. Create gateway

    kubectl -n argo-events create -f https://github.com/argoproj/argo-events/blob/master/examples/gateways/nats.yaml

  2. Check the status of the gateway

    kubectl -n argo-events describe gateway nats-gateway

    Make sure the gateway is in active state and all the event sources are in running state.

Install Sensor

kubectl -n argo-events create -f https://github.com/argoproj/argo-events/blob/master/examples/sensors/nats.yaml

Trigger Workflow

Publish message to subject foo. You might find this useful https://github.com/nats-io/go-nats/tree/master/examples/nats-pub