无法在 Windows 10 上解析 docker-compose 服务主机名

【问题标题】：Cannot resolve docker-compose services hostnames on Windows 10无法在 Windows 10 上解析 docker-compose 服务主机名
【发布时间】：2019-07-16 17:41:10
【问题描述】：

错误报告信息

说明

无法从 Windows 10 上的容器内 ping docker-compose 服务。 ping 该服务的 IP 地址有效。

重现问题的步骤：

1 使用以下内容创建 docker-compose-quick-servers.yml

version: '3.4'
services:
    server1:
        image: mcr.microsoft.com/windows/nanoserver
        container_name: Server_1
        entrypoint: ping -t localhost
      server2:
        image: mcr.microsoft.com/windows/nanoserver
        container_name: Server_2
        entrypoint: ping -t localhost
    networks:
      default:
        external:
          name: nat

2 运行 docker 容器：docker-compose -f .\docker-compose-quick-servers.yml up -d

3 Ping 另一个 docker-compose 服务：docker exec Server_1 ping server2

描述您收到的结果： ping 失败。与第二个服务 IP 地址相同的操作可以正常工作。

描述您预期的结果： 我们应该能够使用其定义的名称 ping 服务。

您认为重要的其他信息（例如，问题只是偶尔发生）： 它在我们的 prod 环境中运行良好（在 Windows Server 2016 上）。

docker version的输出：

Client: Docker Engine - Community
 Version:           18.09.2
 API version:       1.39
 Go version:        go1.10.8
 Git commit:        6247962
 Built:             Sun Feb 10 04:12:31 2019
 OS/Arch:           windows/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.2
  API version:      1.39 (minimum version 1.24)
  Go version:       go1.10.6
  Git commit:       6247962
  Built:            Sun Feb 10 04:28:48 2019
  OS/Arch:          windows/amd64
  Experimental:     false

docker info 的输出：

Containers: 2
 Running: 2
 Paused: 0
 Stopped: 0
Images: 9
Server Version: 18.09.2
Storage Driver: windowsfilter
 Windows:
Logging Driver: json-file
Plugins:
 Volume: local
 Network: ics l2bridge l2tunnel nat null overlay transparent
 Log: awslogs etwlogs fluentd gelf json-file local logentries splunk syslog
Swarm: inactive
Default Isolation: hyperv
Kernel Version: 10.0 17134 (17134.1.amd64fre.rs4_release.180410-1804)
Operating System: Windows 10 Enterprise Version 1803 (OS Build 17134.706)
OSType: windows
Architecture: x86_64
CPUs: 8
Total Memory: 15.93GiB
Name: H198818
ID: HOKO:5CAS:SIQ2:SCLD:3TB7:A6GG:EH5X:763G:CBV5:UQMJ:BGSO:PF2Y
Docker Root Dir: E:\ProgramData\Docker
Debug Mode (client): false
Debug Mode (server): true
 File Descriptors: -1
 Goroutines: 36
 System Time: 2019-04-18T15:33:25.7898496-04:00
 EventsListeners: 1
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false
Product License: Community Engine

docker 检查两个容器 容器 1

[
    {
        "Id": "a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280",
        "Created": "2019-07-19T15:41:58.0571535Z",
        "Path": "ping",
        "Args": [
            "-t",
            "localhost"
        ],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 1180,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2019-07-22T13:10:28.0169558Z",
            "FinishedAt": "2019-07-20T03:42:53.7800119-04:00"
        },
        "Image": "sha256:cf751d69394af7dc72bd2a251b5f206c623d58ad3c227b4eb38b7f78695fd6c6",
        "ResolvConfPath": "",
        "HostnamePath": "",
        "HostsPath": "",
        "LogPath": "C:\\ProgramData\\Docker\\containers\\a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280\\a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280-json.log",
        "Name": "/Server_2",
        "RestartCount": 0,
        "Driver": "windowsfilter",
        "Platform": "windows",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "nat",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": [],
            "CapAdd": null,
            "CapDrop": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 0,
            "ConsoleSize": [
                0,
                0
            ],
            "Isolation": "hyperv",
            "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,
            "DeviceCgroupRules": null,
            "DiskQuota": 0,
            "KernelMemory": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": null,
            "PidsLimit": 0,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": null,
            "ReadonlyPaths": null
        },
        "GraphDriver": {
            "Data": {
                "dir": "C:\\ProgramData\\Docker\\windowsfilter\\a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280"
            },
            "Name": "windowsfilter"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "a187264b5df4",
            "Domainname": "",
            "User": "ContainerUser",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": null,
            "Cmd": null,
            "Image": "mcr.microsoft.com/windows/nanoserver:1809",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": [
                "ping",
                "-t",
                "localhost"
            ],
            "OnBuild": null,
            "Labels": {
                "com.docker.compose.config-hash": "be02643ae0be24af8c209ead0232c7c323bce17485989dc12dfc691d5d5ec1b6",
                "com.docker.compose.container-number": "1",
                "com.docker.compose.oneoff": "False",
                "com.docker.compose.project": "temp",
                "com.docker.compose.service": "server2",
                "com.docker.compose.version": "1.23.2"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "a187264b5df41392b85a6b0d465af14e0dae699893aa2bd7d325d3638ca37280",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "nat": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": [
                        "server2",
                        "a187264b5df4"
                    ],
                    "NetworkID": "a8c298597e4971959a217132aaf2521cdc5d0b3ce887580ad4239dce75f7e697",
                    "EndpointID": "edbb8a518b5be347f2c600864838bc850d8951a1e09a78b97f0fd0d67bf7a5d1",
                    "Gateway": "172.30.48.1",
                    "IPAddress": "172.30.57.127",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "00:15:5d:53:a2:da",
                    "DriverOpts": null
                }
            }
        }
    }
]

容器 2

[
    {
        "Id": "dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0",
        "Created": "2019-07-19T15:41:58.0571535Z",
        "Path": "ping",
        "Args": [
            "-t",
            "localhost"
        ],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 1172,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2019-07-22T13:10:28.0179564Z",
            "FinishedAt": "2019-07-20T03:42:53.7730133-04:00"
        },
        "Image": "sha256:cf751d69394af7dc72bd2a251b5f206c623d58ad3c227b4eb38b7f78695fd6c6",
        "ResolvConfPath": "",
        "HostnamePath": "",
        "HostsPath": "",
        "LogPath": "C:\\ProgramData\\Docker\\containers\\dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0\\dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0-json.log",
        "Name": "/Server_1",
        "RestartCount": 0,
        "Driver": "windowsfilter",
        "Platform": "windows",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "nat",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": [],
            "CapAdd": null,
            "CapDrop": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 0,
            "ConsoleSize": [
                0,
                0
            ],
            "Isolation": "hyperv",
            "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,
            "DeviceCgroupRules": null,
            "DiskQuota": 0,
            "KernelMemory": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": null,
            "PidsLimit": 0,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": null,
            "ReadonlyPaths": null
        },
        "GraphDriver": {
            "Data": {
                "dir": "C:\\ProgramData\\Docker\\windowsfilter\\dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0"
            },
            "Name": "windowsfilter"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "dca6e1b6e86c",
            "Domainname": "",
            "User": "ContainerUser",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": null,
            "Cmd": null,
            "Image": "mcr.microsoft.com/windows/nanoserver:1809",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": [
                "ping",
                "-t",
                "localhost"
            ],
            "OnBuild": null,
            "Labels": {
                "com.docker.compose.config-hash": "39e91b8015a79dda2357d7e1af47455981a66b7d56d23b397d649f096e1b93f1",
                "com.docker.compose.container-number": "1",
                "com.docker.compose.oneoff": "False",
                "com.docker.compose.project": "temp",
                "com.docker.compose.service": "server1",
                "com.docker.compose.version": "1.23.2"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "dca6e1b6e86c9e888f0c817c8f5677f6e9d1513ee67715b77f5ca134811ee2c0",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "nat": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": [
                        "server1",
                        "dca6e1b6e86c"
                    ],
                    "NetworkID": "a8c298597e4971959a217132aaf2521cdc5d0b3ce887580ad4239dce75f7e697",
                    "EndpointID": "8825f5c168aeb39a022de1ab4cc0f0f5bdc5a1938d490a40d476182d96904791",
                    "Gateway": "172.30.48.1",
                    "IPAddress": "172.30.56.75",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "00:15:5d:53:ad:eb",
                    "DriverOpts": null
                }
            }
        }
    }
]

【问题讨论】：

    标签： docker docker-compose


    【解决方案1】：

    Docker CE 不推荐用于 Windows Server。使用 Docker EE Basic，它对 Windows 服务器是免费的。

    更新： 一般来说，您的配置看起来不错...设置了别名，但从 ping 输出我看到这不是 ping 的问题，而是 dns 解析的问题。第二个容器正在使用一些外部 dns 来解析 server1，而不是使用 docker 内部 dns。

    有一个类似的错误报告涉及 windows 容器的 docker dns 分辨率：https://github.com/docker/for-win/issues/1976

    这可能是你的情况。

    作为临时解决方案，我建议您将容器中的 dns 解析器设置为默认 docker dns，地址为 127.0.0.11 (https://docs.docker.com/v17.09/engine/userguide/networking/configure-dns/)

    更新 2： 我在 Win1809 上复制，它对我有用：

    PS E:\workspace\docker-test> docker-compose up -d
Pulling server1 (mcr.microsoft.com/windows/nanoserver:1809)...
1809: Pulling from windows/nanoserver
58fd16eaae0b: Pull complete
Pulling server2 (mcr.microsoft.com/windows/nanoserver:1809)...
1809: Pulling from windows/nanoserver
Creating Server_1 ... done
Creating Server_2 ... done
PS E:\workspace\docker-test> docker ps
CONTAINER ID        IMAGE                                       COMMAND               CREATED             STATUS              PORTS               NAMES
0628c2fd7106        mcr.microsoft.com/windows/nanoserver:1809   "ping -t localhost"   12 seconds ago      Up 6 seconds                            Server_1
8e52138080f2        mcr.microsoft.com/windows/nanoserver:1809   "ping -t localhost"   12 seconds ago      Up 6 seconds                            Server_2

PS E:\workspace\docker-test> docker exec Server_2 ping Server_1

Pinging Server_1 [172.27.195.21] with 32 bytes of data:
Reply from 172.27.195.21: bytes=32 time<1ms TTL=128
Reply from 172.27.195.21: bytes=32 time=5ms TTL=128
PS E:\workspace\docker-test> docker exec Server_1 ping Server_2

Pinging Server_2 [172.27.193.166] with 32 bytes of data:
Reply from 172.27.193.166: bytes=32 time<1ms TTL=128
Reply from 172.27.193.166: bytes=32 time=1ms TTL=128

PS E:\workspace\docker-test> docker exec Server_2 ping server1

Pinging server1 [172.27.195.21] with 32 bytes of data:
Reply from 172.27.195.21: bytes=32 time=1ms TTL=128
Reply from 172.27.195.21: bytes=32 time=2ms TTL=128

PS E:\workspace\docker-test> docker exec Server_1 ping server2

Pinging server2 [172.27.193.166] with 32 bytes of data:
Reply from 172.27.193.166: bytes=32 time<1ms TTL=128
Reply from 172.27.193.166: bytes=32 time=4ms TTL=128

    【讨论】：

    • 是的，但是只有我们的 prod 环境是 windows 服务器，并且这个错误发生在 windows 10 上。此外，docker compose 网络文档说它应该解析在同一主机上运行的容器之间的主机名在 docker-compose.yml 中定义的服务上。
    • 哦，对了。请为两个容器输出 ping、nslookup 和 docker inspect 的结果。
    • ping 结果Ping request could not find host server2. Please check the name and try again.nslookup: Default Server: dom03.hoc-cdc.ca Address: 10.4.16.223
    • 和 docker 检查两个容器？
    • 编辑问题以包含 docker inspect 由于输出较长
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