Envoy最初建于Lyft，是一个高性能的代理服务，为服务网格提供了基础。 它与应用程序并行运行，通过以平台无关的方式提供通用功能来抽象网络。 当基础架构中的所有服务流量都通过Envoy网格时，通过一致的可观测性，很容易地查看问题区域，调整整体性能并在一个位置添加特殊。
docker 安装
$ docker pull envoyproxy/envoy:latest latest: Pulling from envoyproxy/envoy b234f539f7a1: Pull complete 55172d420b43: Pull complete 5ba5bbeb6b91: Pull complete 43ae2841ad7a: Pull complete f6c9c6de4190: Pull complete 332ac9c3e424: Pull complete de19b7c7b473: Pull complete 12a2b3ebc603: Pull complete 6f472521a27e: Pull complete 5d86eddb3779: Pull complete Digest: sha256:e3f5527816b396f007d250e92f0a7ade63b42c653cdca32d142b96ef53804361 Status: Downloaded newer image for envoyproxy/envoy:latest www@TinywanAliYun:~$ docker run --rm -d -p 10000:10000 envoyproxy/envoy:latest 94f8cc5678b034a8086823bbf2dd60e7c24ff795eb52016e4ae03c46e893960a www@TinywanAliYun:~$ curl -v localhost:10000 * Rebuilt URL to: localhost:10000/ * Trying 127.0.0.1... * Connected to localhost (127.0.0.1) port 10000 (#0) > GET / HTTP/1.1 > Host: localhost:10000 > User-Agent: curl/7.47.0 > Accept: */* > < HTTP/1.1 503 Service Unavailable < content-length: 57 < content-type: text/plain < date: Fri, 29 Jun 2018 01:29:11 GMT < server: envoy < * Connection #0 to host localhost left intact upstream connect error or disconnect/reset before headerswww@TinywanAliYun:~$ ping www.tinywan.com PING www.tinywan.com (139.224.239.21) 56(84) bytes of data. 64 bytes from 139.224.239.21: icmp_seq=1 ttl=64 time=0.239 ms ^C --- www.tinywan.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.239/0.239/0.239/0.000 ms
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