Docker inspect命令具有什么功能呢?
下文笔者讲述Docker中inspect命令的功能简介说明,如下所示
docker inspect功能:
获取容器及镜像中的元数据
docker inspect命令语法
docker inspect [OPTIONS] NAME|ID [NAME|ID...] OPTIONS说明： -f:指定返回值的模板文件 -s:显示总的文件大小 --type:为指定类型返回JSON例： docker inspect命令的示例分享
//查看nginx的元数据
[root@node0 ~]# docker inspect cb8
[
{
"Id": "cb8c9febda6c913fc7dff9ed88f5460838859638b228374e434af0f5d356f078",
"Created": "2023-01-17T23:11:08.919839637Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 80829,
"ExitCode": 0,
"Error": "",
"StartedAt": "2023-01-17T23:27:01.28149458Z",
"FinishedAt": "2023-01-17T23:15:23.59976747Z"
},
"Image": "sha256:605c77e624ddb75e6110f997c58876baa13f8754486b461117934b24a9dc3a85",
"ResolvConfPath": "/var/lib/docker/containers/cb8c9febda6c913fc7dff9ed88f5460838859638b228374e434af0f5d356f078/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/cb8c9febda6c913fc7dff9ed88f5460838859638b228374e434af0f5d356f078/hostname",
"HostsPath": "/var/lib/docker/containers/cb8c9febda6c913fc7dff9ed88f5460838859638b228374e434af0f5d356f078/hosts",
"LogPath": "",
"Name": "/nginx",
"RestartCount": 0,
"Driver": "overlay2",
"MountLabel": "system_u:object_r:svirt_sandbox_file_t:s0:c633,c1021",
"ProcessLabel": "system_u:system_r:svirt_lxc_net_t:s0:c633,c1021",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "journald",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "80"
}
]
},
"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": "docker-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": "overlay2",
"Data": {
"LowerDir": "/var/lib/docker/overlay2/1207fef1586e816de1548d5524ea680a6fa7b2a2d07cabf2bc5a8382664a604a-init/diff:/var/l
ib/docker/overlay2/c1efa4a731960feb0b8a8d64efcf7b4ddf35e1f09fb8e3d3cee1892f44f03396/diff:/var/lib/docker/overlay2/52e0dbe8fd1aebb192406004de4bdbeab959fa70edb530bfce17d92a8887d00a/diff:/var/lib/docker/overlay2/e8efaa04c24d8a1c07f90bda99c5d77f59a2ca3cf6b37a2c288182685cc08e71/diff:/var/lib/docker/overlay2/a8aa8a964a46baa3c8a83c5304fc3830474f135c5f5b94fcb30b96ce6826b493/diff:/var/lib/docker/overlay2/4beaff3bd33edc1b42cab33a6d967122a7a5fd43cb104bb722f4ca867aac1072/diff:/var/lib/docker/overlay2/74cd3eb0d5af227ca4970ec93014831fae2e64e41864e772cd8b897560d386ce/diff", "MergedDir": "/var/lib/docker/overlay2/1207fef1586e816de1548d5524ea680a6fa7b2a2d07cabf2bc5a8382664a604a/merged",
"UpperDir": "/var/lib/docker/overlay2/1207fef1586e816de1548d5524ea680a6fa7b2a2d07cabf2bc5a8382664a604a/diff",
"WorkDir": "/var/lib/docker/overlay2/1207fef1586e816de1548d5524ea680a6fa7b2a2d07cabf2bc5a8382664a604a/work"
}
},
"Mounts": [],
"Config": {
"Hostname": "cb8c9febda6c",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": true,
"AttachStderr": true,
"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=1.21.5",
"NJS_VERSION=0.7.1",
"PKG_RELEASE=1~bullseye"
],
"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": "SIGQUIT"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "2d8387ed58eb361477d9cf4ee8c5bbe567ebea88f686c291934e0493228f2a3e",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
},
"SandboxKey": "/var/run/docker/netns/2d8387ed58eb",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "145a54679bb895fbe992d93313d05f935e4372f44ef2324fa7cbec11be790d62",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "e4556eaad092452996158af2848970635fbfa6695adf8f6810729efaa9d75e3d",
"EndpointID": "145a54679bb895fbe992d93313d05f935e4372f44ef2324fa7cbec11be790d62",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02"
}
}
}
}
]
//查看nginx容器的IP地址
[root@node0 ~]# docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' nginx
172.17.0.2
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