参考教程：https://docs.docker.com/engine/reference/commandline/inspect/
环境
- virtual box 6.1
- centos 7.8
- docker 19.03
命令格式
docker inspect [OPTIONS] NAME|ID [NAME|ID...]
使用 inspect 命令可以查看一个容器的具体信息。
命令选项
| 名称 | 默认值 | 描述 |
|---|---|---|
--format , -f |
格式化输出 | |
--size , -s |
显示的最大文件大小 | |
--type |
返回指定类型的 JSON |
示例
获取 IP 地址
$ docker run -p 80:80 --name my_nginx -d nginx
Unable to find image 'nginx:latest' locally
latest: Pulling from library/nginx
d121f8d1c412: Pull complete
ebd81fc8c071: Pull complete
655316c160af: Pull complete
d15953c0e0f8: Pull complete
2ee525c5c3cc: Pull complete
Digest: sha256:9a1f8ed9e2273e8b3bbcd2e200024adac624c2e5c9b1d420988809f5c0c41a5e
Status: Downloaded newer image for nginx:latest
50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c
$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' my_nginx
172.18.0.6
获取 MAC 地址
$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.MacAddress}}{{end}}' my_nginx
02:42:ac:12:00:06
获取日志路径
$ docker inspect --format='{{.LogPath}}' my_nginx
/var/lib/docker/containers/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c-json.log
获取镜像名称
$ docker inspect --format='{{.Config.Image}}' my_nginx
nginx
获取所有绑定端口
$ docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} {{$p}} -> {{(index $conf 0).HostPort}} {{end}}' my_nginx
80/tcp -> 80
获取子 JSON 串
$ docker inspect --format='{{json .Config}}' my_nginx
{"Hostname":"50522a9679f4","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":{"80/tcp":{}},"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","NGINX_VERSION=1.19.2","NJS_VERSION=0.4.3","PKG_RELEASE=1~buster"],"Cmd":["nginx","-g","daemon off;"],"Image":"nginx","Volumes":null,"WorkingDir":"","Entrypoint":["/docker-entrypoint.sh"],"OnBuild":null,"Labels":{"maintainer":"NGINX Docker Maintainers <docker-maint@nginx.com>"},"StopSignal":"SIGTERM"}
获取全部信息
$ docker inspect my_nginx
[
{
"Id": "50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c",
"Created": "2020-09-14T03:04:25.630965809Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 7973,
"ExitCode": 0,
"Error": "",
"StartedAt": "2020-09-14T03:04:27.882028663Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:7e4d58f0e5f3b60077e9a5d96b4be1b974b5a484f54f9393000a99f3b6816e3d",
"ResolvConfPath": "/var/lib/docker/containers/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c/hostname",
"HostsPath": "/var/lib/docker/containers/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c/hosts",
"LogPath": "/var/lib/docker/containers/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c/50522a9679f4be5aeb958fa74b9b3ad3522cafc896fe303836a52ed216dd9a8c-json.log",
"Name": "/my_nginx",
"RestartCount": 0,
"Driver": "overlay",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "docker-default",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "80"
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Capabilities": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "private",
"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": [],
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"MaskedPaths": [
"/proc/asound",
"/proc/acpi",
"/proc/kcore",
"/proc/keys",
"/proc/latency_stats",
"/proc/timer_list",
"/proc/timer_stats",
"/proc/sched_debug",
"/proc/scsi",
"/sys/firmware"
],
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay/4ed54e8b08493548643d12b5a30c673cc2ac452f4d7f3fa690496179d2495bf0/root",
"MergedDir": "/var/lib/docker/overlay/cfec26407e90c703f377e623c7211dfc47b97789229ba63c976cb4c51a07209f/merged",
"UpperDir": "/var/lib/docker/overlay/cfec26407e90c703f377e623c7211dfc47b97789229ba63c976cb4c51a07209f/upper",
"WorkDir": "/var/lib/docker/overlay/cfec26407e90c703f377e623c7211dfc47b97789229ba63c976cb4c51a07209f/work"
},
"Name": "overlay"
},
"Mounts": [],
"Config": {
"Hostname": "50522a9679f4",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"NGINX_VERSION=1.19.2",
"NJS_VERSION=0.4.3",
"PKG_RELEASE=1~buster"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"Image": "nginx",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {
"maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
},
"StopSignal": "SIGTERM"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "710ed340bf99ed946c0e31483dd227e34e34445cfb8f3101fe1486c305ae06f7",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
},
"SandboxKey": "/var/run/docker/netns/710ed340bf99",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "b285fb99318cff326a7713e715d99ebd974f72c9f737976a2b6f206bd29507f4",
"Gateway": "172.18.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.18.0.6",
"IPPrefixLen": 24,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:12:00:06",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "b63e52ee23a27038a2e5f2a0e7fc52e3797233537b430129bbc221006c7906ec",
"EndpointID": "b285fb99318cff326a7713e715d99ebd974f72c9f737976a2b6f206bd29507f4",
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.6",
"IPPrefixLen": 24,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:12:00:06",
"DriverOpts": null
}
}
}
}
]
总结
介绍了 inspect 命令的使用，可以查看容器的信息。