virtual_host.yml

virtual_hosts:
  - name: local_service
    domains: ["*"]
    routes:
    - match: { prefix: "/" }
      route:
        cluster: ping_pong_service
        max_grpc_timeout: 0s
    cors:
      allow_origin:
      - "*"
      allow_headers: keep-alive,user-agent,cache-control,content-type,content-transfer-encoding,x-accept-content-transfer-encoding,x-accept-response-streaming,x-user-agent,x-grpc-web,grpc-timeout
      expose_headers: grpc-status,grpc-message
  http_filters:
  - name: envoy.grpc_web
  - name: envoy.cors
  - name: envoy.router