echo.yaml

apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: echo
  annotations:
    version: v0.0.1
    description: "This is my app"
spec:
  components:
    - name: echo
      type: component
      properties:
        image: wasmcloud.azurecr.io/echo:0.3.7
      traits:
        - type: spreadscaler
          properties:
            instances: 1

    - name: httpserver
      type: capability
      properties:
        contract: wasmcloud:httpserver
        image: wasmcloud.azurecr.io/httpserver:0.17.0
      traits:
        - type: spreadscaler
          properties:
            instances: 1
        - type: link
          properties:
            target: echo
            namespace: wasi
            package: http
            interfaces:
              - incoming-handler
            source_config:
              - name: default-port
                properties:
                  address: 0.0.0.0:8080