如何使用 Envoy 将 /some-prefix 适当地路由到 gRPC 服务？

Question

我正在尝试设置 Envoy 以将 "/account" 路由到 gRPC 服务。如果我将路由前缀设置为 "/"，它工作正常，但如果我引入 "/account"，它就会中断。我试过 prefix_rewrite:"/" 但没有用。

admin:
  access_log_path: /tmp/admin_access.log
  address:
    socket_address: { address: 0.0.0.0, port_value: 9901 }
static_resources:
  listeners:
    - name: listener_0
      address:
        socket_address: { address: 0.0.0.0, port_value: 3000 }
      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: "/account/" }
                          route: {cluster: account_service, prefix_rewrite: "/" }
                        - match: { prefix: "/account" }
                          route: { cluster: account_service, prefix_rewrite: "/"}
                            
                http_filters:
                  - name: envoy.filters.http.grpc_web
                  - name: envoy.filters.http.router
  clusters:
    - name: account_service
      connect_timeout: 0.25s
      type: logical_dns
      http2_protocol_options: {}
      lb_policy: round_robin
      hosts: [{ socket_address: { address: account, port_value: 3400 } }]

点击 localhost:3000/account 结果：

{
  "error": "14 UNAVAILABLE: DNS resolution failed"
}

感谢您的宝贵时间。我知道它很有价值！

Answer 1

prefix_rewrite 将不起作用，因为它将 localhost:3000/帐户路由到 account_service:3400/。仅在您的情况下，这应该可行。这应该将 localhost:3000/account 路由到 account_service:3400/account

- match: { prefix: "/account/" }
  route: {cluster: account_service}

如何使用 Envoy 将 /some-prefix 适当地路由到 gRPC 服务？

How can I use Envoy to route /some-prefix to a gRPC service appropriately?

proxy

grpc

envoyproxy