具有多个networking接口的Docker容器：只能获得一个IP地址
我有一个名为some-mysq l some-mysq容器some-mysq到名为mynet的覆盖networking上：当我执行mynet docker inspect some-mysql它显示出这个巨大的JSON：
{ "Id": "49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f", "Created": "2017-02-24T09:21:50.237425126Z", "Path": "docker-entrypoint.sh", "Args": [ "mysqld" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 28706, "ExitCode": 0, "Error": "", "StartedAt": "2017-03-27T06:59:40.137554407Z", "FinishedAt": "2017-03-25T00:05:46.938307695Z" }, "Image": "sha256:7666f75adb6b50676a366c6fd7a3916cb41f6e8eaf336c3d3ab7d35317fed0b9", "ResolvConfPath": "/var/lib/docker/containers/49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f/resolv.conf", "HostnamePath": "/var/lib/docker/containers/49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f/hostname", "HostsPath": "/var/lib/docker/containers/49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f/hosts", "LogPath": "/var/lib/docker/containers/49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f/49cb39a4e8e5e7421a4ae69ffd5bb17a8f90f02abbfc3f64ef80d206ceb11c1f-json.log", "Name": "/some-mysql", "RestartCount": 0, "Driver": "aufs", "MountLabel": "", "ProcessLabel": "", "AppArmorProfile": "", "ExecIDs": null, "HostConfig": { "Binds": null, "ContainerIDFile": "", "LogConfig": { "Type": "json-file", "Config": {} }, "NetworkMode": "default", "PortBindings": { "3306/tcp": [ { "HostIp": "", "HostPort": "3307" } ] }, "RestartPolicy": { "Name": "no", "MaximumRetryCount": 0 }, "AutoRemove": false, "VolumeDriver": "", "VolumesFrom": null, "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": 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": [], "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": [ { "Type": "volume", "Name": "c709191cb719b447772bde814f490eb2b30429c9ca7f1c62fda445af9e0b5fb9", "Source": "/var/lib/docker/volumes/c709191cb719b447772bde814f490eb2b30429c9ca7f1c62fda445af9e0b5fb9/_data", "Destination": "/var/lib/mysql", "Driver": "local", "Mode": "", "RW": true, "Propagation": "" } ], "Config": { "Hostname": "49cb39a4e8e5", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "ExposedPorts": { "3306/tcp": {} }, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "MYSQL_ROOT_PASSWORD=pass", "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "GOSU_VERSION=1.7", "MYSQL_MAJOR=5.7", "MYSQL_VERSION=5.7.17-1debian8" ], "Cmd": [ "mysqld" ], "ArgsEscaped": true, "Image": "mysql", "Volumes": { "/var/lib/mysql": {} }, "WorkingDir": "", "Entrypoint": [ "docker-entrypoint.sh" ], "OnBuild": null, "Labels": {} }, "NetworkSettings": { "Bridge": "", "SandboxID": "1f5cde48c303e649f0b675ac11f302336936c7ea0f7c1a0ea8054866c308189d", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "3306/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "3307" } ] }, "SandboxKey": "/var/run/docker/netns/1f5cde48c303", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "2800343c29643796d28e8f58a13a7dbf5d1a2706d26f25e27ea623a4673d4439", "Gateway": "172.17.0.1", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "MacAddress": "02:42:ac:11:00:03", "Networks": { "bridge": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "a3ec63c75685ca69af892f7047abc2c1d0955407d61423f2cff87500eedaadf3", "EndpointID": "2800343c29643796d28e8f58a13a7dbf5d1a2706d26f25e27ea623a4673d4439", "Gateway": "172.17.0.1", "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:11:00:03" }, "mynet": { "IPAMConfig": {}, "Links": null, "Aliases": [ "49cb39a4e8e5" ], "NetworkID": "37af7ae0184078932bbc234c1f4b15983777f566c36f7eb93e2b4b3437e460a7", "EndpointID": "fd1f776954723a705edef323b63588cfc93cca7b80b15f22414b72454e14e48c", "Gateway": "172.18.0.1", "IPAddress": "172.18.0.2", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:12:00:02" } } } } ]
我的目标是只获取与networking接口mynet相关的some-mysql容器的IP地址。 如果我做
docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' some-mysql
我得到： 172.17.0.3172.18.0.2 ：它们是默认桥接networking和我的覆盖networking的IP地址。 我怎样才能检索mynet接口的some-mysql IP地址？
您可以指定networking名称，而不需要range ：
docker inspect -f '{{.NetworkSettings.Networks.mynet.IPAddress}}' some-mysql