无法在Docker容器中访问lite-server
http：// localhost：4200在主机上不起作用
但服务器正在容器中运行
docker exec 697bf01cf064 curl http://0.0.0.0:4200/ <!doctype html> ... 这个命令
docker-machine ip default
回报
192.168.99.100
http://192.168.99.100:4200不起作用
docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 697bf01cf064 wepoll_wepoll-ui-webpack-docker "npm start --host=..." 19 minutes ago Up 19 minutes 0.0.0.0:4200->4200/tcp, 0.0.0.0:49152->49152/tcp wepoll-ui-webpack-docker
在Dockerfile中EXPOSE 4200 49152
networks: dev-network: driver: bridge
networking驱动程序 – 桥
如何从主机访问容器服务器？ 禁用防火墙。
docker介绍68e5e3524906
[ { "Id": "68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111", "Created": "2017-02-01T16:56:34.52365653Z", "Path": "npm", "Args": [ "start", "--host=0.0.0.0" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 4483, "ExitCode": 0, "Error": "", "StartedAt": "2017-02-01T16:56:34.833112923Z", "FinishedAt": "0001-01-01T00:00:00Z" }, "Image": "sha256:a8aa417d60182b300836ce3f556bf90ae5b71fcf1ef9f76f4ef0d41b461934d1", "ResolvConfPath": "/mnt/sda1/var/lib/docker/containers/68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111/resolv.conf", "HostnamePath": "/mnt/sda1/var/lib/docker/containers/68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111/hostname", "HostsPath": "/mnt/sda1/var/lib/docker/containers/68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111/hosts", "LogPath": "/mnt/sda1/var/lib/docker/containers/68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111/68e5e3524906d621f3abc3cdfcb58e740290bb12a2082e44c14e180fecabb111-json.log", "Name": "/wepoll-ui-webpack-docker", "RestartCount": 0, "Driver": "aufs", "MountLabel": "", "ProcessLabel": "", "AppArmorProfile": "", "ExecIDs": null, "HostConfig": { "Binds": [], "ContainerIDFile": "", "LogConfig": { "Type": "json-file", "Config": {} }, "NetworkMode": "wepoll_dev-network", "PortBindings": { "4200/tcp": [ { "HostIp": "", "HostPort": "4200" } ], "49152/tcp": [ { "HostIp": "", "HostPort": "49152" } ] }, "RestartPolicy": { "Name": "", "MaximumRetryCount": 0 }, "AutoRemove": false, "VolumeDriver": "", "VolumesFrom": [], "CapAdd": null, "CapDrop": null, "Dns": null, "DnsOptions": null, "DnsSearch": null, "ExtraHosts": null, "GroupAdd": null, "IpcMode": "", "Cgroup": "", "Links": null, "OomScoreAdj": 0, "PidMode": "", "Privileged": false, "PublishAllPorts": false, "ReadonlyRootfs": false, "SecurityOpt": null, "UTSMode": "", "UsernsMode": "", "ShmSize": 67108864, "Runtime": "runc", "ConsoleSize": [ 0, 0 ], "Isolation": "", "CpuShares": 0, "Memory": 0, "NanoCpus": 0, "CgroupParent": "", "BlkioWeight": 0, "BlkioWeightDevice": null, "BlkioDeviceReadBps": null, "BlkioDeviceWriteBps": null, "BlkioDeviceReadIOps": null, "BlkioDeviceWriteIOps": null, "CpuPeriod": 0, "CpuQuota": 0, "CpuRealtimePeriod": 0, "CpuRealtimeRuntime": 0, "CpusetCpus": "", "CpusetMems": "", "Devices": null, "DiskQuota": 0, "KernelMemory": 0, "MemoryReservation": 0, "MemorySwap": 0, "MemorySwappiness": -1, "OomKillDisable": false, "PidsLimit": 0, "Ulimits": null, "CpuCount": 0, "CpuPercent": 0, "IOMaximumIOps": 0, "IOMaximumBandwidth": 0 }, "GraphDriver": { "Name": "aufs", "Data": null }, "Mounts": [], "Config": { "Hostname": "68e5e3524906", "Domainname": "", "User": "app", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "ExposedPorts": { "4200/tcp": {}, "49152/tcp": {} }, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "NPM_CONFIG_LOGLEVEL=info", "NODE_VERSION=6.6.0", "HOME=/home/app", "APP_NAME=wepoll-ui-webpack-docker" ], "Cmd": [ "npm", "start", "--host=0.0.0.0" ], "Image": "wepoll_wepoll-ui-webpack-docker", "Volumes": null, "WorkingDir": "/home/app/wepoll-ui-webpack-docker", "Entrypoint": null, "OnBuild": null, "Labels": { "com.docker.compose.config-hash": "b1e41fe8d248646d782943b8997d539b910c984b9a862335c080458afd44bd1e", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "wepoll", "com.docker.compose.service": "wepoll-ui-webpack-docker", "com.docker.compose.version": "1.10.0" } }, "NetworkSettings": { "Bridge": "", "SandboxID": "7b8e3391317a645ec316183e6d1f8a4865418185598d8088d47f808987006bbf", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "4200/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "4200" } ], "49152/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "49152" } ] }, "SandboxKey": "/var/run/docker/netns/7b8e3391317a", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "", "Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "", "IPPrefixLen": 0, "IPv6Gateway": "", "MacAddress": "", "Networks": { "wepoll_dev-network": { "IPAMConfig": null, "Links": null, "Aliases": [ "wepoll-ui-webpack-docker", "68e5e3524906" ], "NetworkID": "4c5594b896a4050f60133f44e494021aaf5606488d22af963561febb0ee6049b", "EndpointID": "603c3628945054bd62a9deaa574a782241b544502bb525333f2865da3f705d9a", "Gateway": "172.19.0.1", "IPAddress": "172.19.0.2", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:13:00:02" } } } } ]
debugging：
您无法在${host_ip}:4200上浏览应用程序的事实意味着端口可能无法正常显示。
但是在PORTS部分下docker ps的输出有…
0.0.0.0:4200->4200/tcp
这意味着端口已经正确暴露。
让我们来看一下容器IP上的端口是否可达（以消除防火墙上的任何怀疑）
172.19.0.2 docker inspect ${container_id}的输出docker inspect ${container_id}显示你的容器IP是172.19.0.2 （并且certificate端口绑定是正确的）。 但是http://172.19.0.2:4200也是不可达的。
但是你已经提到了curl 0.0.0.0里面的机器工作，但是0.0.0.0，在这个上下文中，意思是“本地机器上的所有IP地址”（事实上可能是“本地机器上的所有IPv4地址”），这也是包括127.0.0.1 aka localhost ，它并不能certificate你的应用正在监听所有接口。
现在你说你用--host=0.0.0.0启动了应用程序，但是我认为你仍然可以在应用代码中覆盖它。
所以，最好的情况是检查应用服务器是如何启动的。