# Forward proxy gated by a node-level routing matcher. The only chain node is a
# relay to an upstream proxy, but it is only eligible when the request Host
# matches Host(`tcp-echo`). A request to tcp-echo:5678 matches, is relayed
# upstream, and reaches the echo server ("hello-gost"); a request to any other
# host is excluded (no eligible node) and never reaches the echo server.
services:
  - name: proxy
    addr: ":8080"
    handler:
      type: http
      chain: chain-0
    listener:
      type: tcp

chains:
  - name: chain-0
    hops:
      - name: hop-0
        nodes:
          - name: node-0
            addr: gost-upstream:8081
            matcher:
              rule: 'Host(`tcp-echo`)'
            connector:
              type: http
            dialer:
              type: tcp