【发布时间】：2019-07-06 20:14:38
【问题描述】：
我查看了其他类似的问题，例如：Access to Docker Container Port 和 access docker container's port 和 Cannot access port on host mapped to docker container port，我认为我正在尽我所能访问我的 docker 容器上的端口 4200，但我无法访问。
这是docker ps的输出：
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
298f832ca50d redcricket/fisherman:latest "/usr/sbin/init" About an hour ago Up 39 minutes 4200/tcp gallant_matsumoto
我的容器可以 ping 通：
$ ping `docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' gallant_matsumoto`
Pinging 172.17.0.2 with 32 bytes of data:
Reply from 172.17.0.2: bytes=32 time=110ms TTL=239
Reply from 172.17.0.2: bytes=32 time=82ms TTL=239
Reply from 172.17.0.2: bytes=32 time=92ms TTL=239
Reply from 172.17.0.2: bytes=32 time=80ms TTL=239
Ping statistics for 172.17.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 80ms, Maximum = 110ms, Average = 91ms
在我的服务器上，我以这样的角度开始：
[root@298f832ca50d HelloWorld]# ng serve --host 0.0.0.0 --port 4200 --disableHostCheck
WARNING: This is a simple server for use in testing or debugging Angular applications
locally. It hasn't been reviewed for security issues.
Binding this server to an open connection can result in compromising your application or
computer. Using a different host than the one passed to the "--host" flag might result in
websocket connection issues. You might need to use "--disableHostCheck" if that's the
case.
WARNING: Running a server with --disable-host-check is a security risk. See https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a for more information.
10% building 3/3 modules 0 activeℹ ｢wds｣: Project is running at http://0.0.0.0:4200/webpack-dev-server/
ℹ ｢wds｣: webpack output is served from /
ℹ ｢wds｣: 404s will fallback to //index.html
chunk {main} main.js, main.js.map (main) 9.77 kB [initial] [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 251 kB [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 6.09 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 16.3 kB [initial] [rendered]
chunk {vendor} vendor.js, vendor.js.map (vendor) 3.8 MB [initial] [rendered]
Date: 2019-07-06T19:58:08.308Z - Hash: 201a042264b357c18e36 - Time: 14593ms
** Angular Live Development Server is listening on 0.0.0.0:4200, open your browser on http://localhost:4200/ **
ℹ ｢wdm｣: Compiled successfully.
但我仍然无法访问http://172.17.0.2:4200/
C:\Users\plankton>curl http://172.17.0.2:4200/
curl: (7) Failed to connect to 172.17.0.2 port 4200: Timed out
我错过了什么？
更新：谢谢 seahorsepip 我试过了：
$ docker run --privileged -p=4200:4200 -itd -e container=docker -v /sys/fs/cgroup:/sys/fs/cgroup redcricket/fisherman:latest /usr/sbin/init
870cd55d0bc65ffe27c595b0092f28a5e333c235ae355a2469563b09058cdf22
plankton@DESKTOP-C8MFTFD MINGW64 /c/Program Files/Docker Toolbox
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
870cd55d0bc6 redcricket/fisherman:latest "/usr/sbin/init" 8 seconds ago Up 3 seconds 0.0.0.0:4200->4200/tcp kind_kapitsa
但是还是连接不上……
C:\Users\plankton>curl http://localhost:4200/
curl: (7) Failed to connect to localhost port 4200: Connection refused
更新二：感谢下面的 David，我现在知道了 VM 的 ip
$ docker-machine.exe ip
192.168.99.100
我不知道如何使用这个 IP。
在客户端我得到...
C:\Users\plankton>curl http://192.168.99.100:4200
curl: (7) Failed to connect to 192.168.99.100 port 4200: Connection refused
如果我尝试像这样重新启动服务器...
[root@bfd864884a59 HelloWorld]# ng serve --host 192.168.99.100
An unhandled exception occurred: listen EADDRNOTAVAIL: address not available 192.168.99.100:4200
See "/tmp/ng-YKKmQ9/angular-errors.log" for further details.
【问题讨论】：
-
如果您使用的是 Docker Toolbox，则需要使用 VM 的 IP 地址，通常是 192.168.99.100。我强烈建议阅读 Docker 的 Getting Started, Part 2: Containers 关于构建和运行自定义镜像的文档：您的镜像默认
CMD应该只是启动您的应用程序，而无需在其中获取交互式 shell，并且您不需要--privileged或绑定-在/sys中挂载任何东西。 -
感谢大卫的指点。我认为VM的IP是
172.17.0.2，我通过执行docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' gallant_matsumoto来确定。我试过了，我认为。没有快乐。 -
docker inspect返回的IP地址在很多情况下基本没用；例如，您无法使用 Docker Toolbox 从主机直接访问它们。您永远不需要使用或知道这些 IP 地址，也不需要查找它们。 -
好的，我该如何获取“VM的IP地址”？
-
docker-machine ip会告诉你。
标签： docker docker-toolbox