WebSockets

Emissary makes it easy to access your services from outside your application, and this includes services that use WebSockets. Only a small amount of additional configuration is required, which is as simple as telling the Mapping to allow “upgrading” from the HTTP protocol to the “websocket” protocol:

allow_upgrade:
- websocket

Example WebSocket service

The example configuration below demonstrates the addition of the allow_upgrade: attribute to support websockets. The use of use_websocket is now deprecated.

---
apiVersion: getambassador.io/v2
kind: Mapping
metadata:
  name: my-service-mapping
spec:
  prefix: /my-service/
  service: my-service
  allow_upgrade:
  - websocket

---
kind: Service
apiVersion: v1
metadata:
  name: my-service
spec:
  selector:
    app: MyApp
  ports:
  - protocol: TCP
    port: 80
    targetPort: 9376