How to set up envoy?

[pcpianobar]

grpc-web settings do not allow communication. Is there any other way?

envoy error : upstream connect error or disconnect/reset before headers. reset reason: connection termination

[mayuki]

Have you configured Envoy for WebSockets? https://www.envoyproxy.io/docs/envoy/latest/start/sandboxes/websocket

[pcpianobar]

config for grpc-web

admin:
  access_log_path: /tmp/admin_access.log
  address:
    socket_address:
      protocol: TCP
      address: 0.0.0.0
      port_value: 9901
static_resources:
  listeners:
  - name: listener_0
    address:
      socket_address:
        address: 0.0.0.0
        port_value: 10000
    filter_chains:
      - filters:
        - name: envoy.filters.network.http_connection_manager
          typed_config:
            "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
            codec_type: auto
            stat_prefix: ingress_http
            route_config:
              name: local_route
              virtual_hosts:
                - name: local_service
                  domains: ["*"]
                  routes:
                    - match: { prefix: "/" }
                      route:
                        cluster: api_service
                  cors:
                    allow_origin_string_match:
                      - prefix: "*"
                    allow_methods: GET, PUT, DELETE, POST, OPTIONS
                    allow_headers: keep-alive,user-agent,cache-control,content-type,content-transfer-encoding,custom-header-1,x-accept-content-transfer-encoding,x-accept-response-streaming,x-user-agent,x-grpc-web,grpc-timeout
                    max_age: "1728000"
                    expose_headers: custom-header-1,grpc-status,grpc-message
            http_filters:
              - name: envoy.filters.http.grpc_web
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.grpc_web.v3.GrpcWeb
              - name: envoy.filters.http.cors
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.cors.v3.Cors
              - name: envoy.filters.http.router
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
  clusters:
  - name: api_service
    connect_timeout: 0.25s
    type: LOGICAL_DNS
    # Comment out the following line to test on v6 networks
    dns_lookup_family: V4_ONLY
    lb_policy: ROUND_ROBIN
    http2_protocol_options: {}
    load_assignment:
      cluster_name: api_service
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address:
                address: game-api
                port_value: 80

config for websocket

admin:
  access_log_path: /tmp/admin_access.log
  address:
    socket_address:
      protocol: TCP
      address: 0.0.0.0
      port_value: 9901
static_resources:
  listeners:
  - name: listener_0
    address:
      socket_address:
        address: 0.0.0.0
        port_value: 10000
    filter_chains:
      - filters:
        - name: envoy.filters.network.http_connection_manager
          typed_config:
            "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
            codec_type: auto
            stat_prefix: ingress_ws_to_ws
            upgrade_configs:
            - upgrade_type: websocket
            route_config:
              name: local_route
              virtual_hosts:
                - name: local_service
                  domains: ["*"]
                  routes:
                    - match: { prefix: "/" }
                      route:
                        cluster: api_service
                  cors:
                    allow_origin_string_match:
                      - prefix: "*"
                    allow_methods: GET, PUT, DELETE, POST, OPTIONS
                    allow_headers: keep-alive,user-agent,cache-control,content-type,content-transfer-encoding,custom-header-1,x-accept-content-transfer-encoding,x-accept-response-streaming,x-user-agent,x-grpc-web,grpc-timeout
                    max_age: "1728000"
                    expose_headers: custom-header-1,grpc-status,grpc-message
            http_filters:
              - name: envoy.filters.http.grpc_web
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.grpc_web.v3.GrpcWeb
              - name: envoy.filters.http.cors
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.cors.v3.Cors
              - name: envoy.filters.http.router
                typed_config:
                  "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
  clusters:
  - name: api_service
    connect_timeout: 0.25s
    type: LOGICAL_DNS
    # Comment out the following line to test on v6 networks
    dns_lookup_family: V4_ONLY
    lb_policy: ROUND_ROBIN
    http2_protocol_options: {}
    load_assignment:
      cluster_name: api_service
      endpoints:
      - lb_endpoints:
        - endpoint:
            address:
              socket_address:
                address: game-api
                port_value: 80

Both are only available for unray. There is an error when using streaminghub. It works fine when you access the server directly. Please point out if there is anything wrong with the setting. Thank you.

Client: Unity 2021.3.2

[E] [ChatController] Grpc.Core.RpcException: Failed to connect to StreamingHub 'IChatHub'. (Status(StatusCode="Internal", Detail="Error starting gRPC call. WebSocketException: Unable to connect to the remote server", DebugException="System.Net.WebSockets.WebSocketException (0x80004005): Unable to connect to the remote server
  at System.Net.WebSockets.WebSocketHandle.ParseAndValidateConnectResponseAsync (System.IO.Stream stream, System.Net.WebSockets.ClientWebSocketOptions options, System.String expectedSecWebSocketAccept, System.Threading.CancellationToken cancellationToken) [0x0010a] in <171a3352ba4a4b8aaa2993d306570161>:0 
  at System.Net.WebSockets.WebSocketHandle.ConnectAsyncCore (System.Uri uri, System.Threading.CancellationToken cancellationToken, System.Net.WebSockets.ClientWebSocketOptions options) [0x00383] in <171a3352ba4a4b8aaa2993d306570161>:0 
  at System.Net.WebSockets.ClientWebSocket.ConnectAsyncCore (System.Uri uri, System.Threading.CancellationToken cancellationToken) [0x000d1] in <171a3352ba4a4b8aaa2993d306570161>:0 

[mayuki]

System.Net.WebSockets.WebSocketException (0x80004005): Unable to connect to the remote server

I don't know the details, but from the exception message, it seems that it is unable to connect to the server. It may be necessary to check network communications with tools such as Wireshark.

- name: envoy.filters.http.grpc_web

WebSocket bridge is not grpc-web, so I don't think it is necessary to use filters.

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