macos - 特使 - 断言失败 : interface_index == 0

Question

尝试使用 envoy --bootstrap-version 2 -c ./config.yaml 运行 envoy 时出现错误
Envoy 版本:1.17.1 安装了 homebrew
操作系统:macOS Big Sur 版本:11.2.3 (20D91)
错误:

[2021-04-01 22:57:39.064][105033][info][main] [source/server/server.cc:731] starting main dispatch loop
[2021-04-01 22:57:44.024][105033][critical][assert] [source/common/network/apple_dns_impl.cc:304] assert failure: interface_index == 0. Details: unexpected interface_index=4294967295
[2021-04-01 22:57:44.025][105033][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:104] Caught Abort trap: 6, suspect faulting address 0x7fff205dc462
[2021-04-01 22:57:44.025][105033][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:91] Backtrace (use tools/stack_decode.py to get line numbers):
[2021-04-01 22:57:44.025][105033][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:92] Envoy version: d6a4496e712d7a2335b26e2f76210d5904002c26/1.17.1/Modified/DEBUG/BoringSSL

配置文件

static_resources:
  listeners:
    - address:
        socket_address:
          address: 0.0.0.0
          port_value: 8080
      filter_chains:
        - filters:
          - name: envoy.filters.network.http_connection_manager
            typed_config: 
              '@type': "type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager"
              stat_prefix: http_proxy
              route_config: 
                name: all
                virtual_hosts:
                  - name: allbackend_cluster
                    domains: 
                      - '*'
                    routes:
                      - match: { prefix: "/"}
                        route:
                          cluster: allbackend_cluster
              http_filters:
                  - name: envoy.filters.http.router
  clusters:
    - name: allbackend_cluster
      connect_timeout: 1s
      type: strict_dns
      lb_policy: round_robin
      load_assignment:
        cluster_name: allbackend_cluster
        endpoints:
          - lb_endpoints:
            - endpoint:
                address:
                  socket_address:
                    address: localhost
                    port_value: 1111
            
            - endpoint:
                address:
                  socket_address:
                    address: localhost
                    port_value: 2222
                  
            - endpoint:
                address:
                  socket_address:
                    address: localhost
                    port_value: 3333

            - endpoint:
                address:
                  socket_address:
                    address: localhost
                    port_value: 4444

我认为这与配置文件本身或 --bootstrap-version 2 无关。 ，因为我尝试过的所有配置文件都遇到了类似的问题。

Answer 1

原来问题出在配置上，特别是主机名。 MacOS 上的 Envoy 在解析 DNS 时遇到问题，因此无法确定 localhost是 172.0.0.1 .如果您在配置文件中用 IP 地址替换主机名，则此错误将得到解决。
或者，您可以添加此

layered_runtime:
  layers:
  - name: disable_apple_dns
    static_layer:
      envoy.restart_features.use_apple_api_for_dns_lookups: false

进入您的特使配置文件，这将禁用用于 DNS 查找的 Apple API，也将解决问题。