Docker命令 - inspect
Docker命令 - inspect获取容器/镜像的元数据比如 :容器ID , 容器名称 , 容器状态 , 容器镜像 , 挂载情况 , 网络信息 。。。语法docker inspect [OPTIONS] NAME|ID [NAME|ID...]## 获取容器的元数据## docker inspect 容器名称 | 容器IDdocker inspect mysqldocker inspect a7
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Docker命令 - inspect
获取容器/镜像的元数据
比如 : 容器ID , 容器名称 , 容器状态 , 容器镜像 , 挂载情况 , 网络信息 。。。
语法
docker inspect [OPTIONS] NAME|ID [NAME|ID...]
## 获取容器的元数据
## docker inspect 容器名称 | 容器ID
docker inspect mysql
docker inspect a7257e0aa936
## 获取镜像的元数据
## docker inspect 镜像名称:镜像版本
docker inspect mysql:8.0.22
OPTIONS说明 :
| OPTION | 说明 | 用法 |
|---|---|---|
| -f | 指定返回值的模板文件 | docker inspect -f=’{{.NetworkSettings.Networks.bridge.IPAddress}}’ mysql |
| -s | 显示总的文件大小 | 待更新 |
| –type | 为指定类型返回JSON | 待更新 |
docker inspect -f 等同于 docker inspect --format
容器所有数据
## 不加任何参数查看容器所有元数据
docker inspect mysql
[
{
"Id": "a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c",
"Created": "2020-05-09T02:10:41.964421619Z",
"Path": "docker-entrypoint.sh",
"Args": [
"mysqld"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 4228,
"ExitCode": 0,
"Error": "",
"StartedAt": "2020-12-12T13:52:02.539194695Z",
"FinishedAt": "2020-12-11T16:24:36.534280851+08:00"
},
"Image": "sha256:f965319e89deaebf165f58d08b1a217971bf411e9d9860e294634b72d09ab6d0",
"ResolvConfPath": "/var/lib/docker/containers/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c/hostname",
"HostsPath": "/var/lib/docker/containers/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c/hosts",
"LogPath": "/var/lib/docker/containers/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c-json.log",
"Name": "/mysql",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": [
"/mydata/mysql/data:/var/lib/mysql",
"/mydata/mysql/conf:/etc/mysql",
"/mydata/mysql/log:/var/log/mysql"
],
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"3306/tcp": [
{
"HostIp": "",
"HostPort": "3306"
}
]
},
"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/overlay2/6cb9d7b92657d104a6abdf80b68947a3d1f6746786261b03b159cbabad11813d-init/diff:/var/lib/docker/overlay2/a9c588fcc1ace7bd53aae773acd4c8d36fc00f9931ccc06a3980b269e89dd210/diff:/var/lib/docker/overlay2/38b498dc8be5e336a1cb849e776e3d1c7b55d0507754cd31511d86309ad0a445/diff:/var/lib/docker/overlay2/075c41318baa13757096f08c44641bd57139d2483a52342df6d6436322ef80b4/diff:/var/lib/docker/overlay2/fab5fa0be14ab7a8e5b0a0176c31c948ceab24724fe1292496ece3235fd77baa/diff:/var/lib/docker/overlay2/4d4963c2da9b6bcacd4f1bc8be621b5fec091e9274a4e0a3f4c40ff774bc417e/diff:/var/lib/docker/overlay2/8e3c8753506de5121093837502d4579280c8f8e9ebee535520faa61069808182/diff:/var/lib/docker/overlay2/5c0d73aca135c604d1bebb4ebaad90b5b2eb164c22e0e00a9fff0dbae83d88ef/diff:/var/lib/docker/overlay2/6137cd5896087d8a95c099695405fc63932c0406fcab22a10ac53e67e591914e/diff:/var/lib/docker/overlay2/a4639b1dd1639c4ed4e64f275ec277a47c27f479ba870491c2bac598a769be16/diff:/var/lib/docker/overlay2/6d6969cd5a7b977ba0ce0315ca0edfc6f972946d354a149288bd25725dbd0b08/diff:/var/lib/docker/overlay2/23668f1a0e4108ff6104e8a580f714a3092b70923852e5ee12a40ab958ad36b2/diff",
"MergedDir": "/var/lib/docker/overlay2/6cb9d7b92657d104a6abdf80b68947a3d1f6746786261b03b159cbabad11813d/merged",
"UpperDir": "/var/lib/docker/overlay2/6cb9d7b92657d104a6abdf80b68947a3d1f6746786261b03b159cbabad11813d/diff",
"WorkDir": "/var/lib/docker/overlay2/6cb9d7b92657d104a6abdf80b68947a3d1f6746786261b03b159cbabad11813d/work"
},
"Name": "overlay2"
},
"Mounts": [
{
"Type": "bind",
"Source": "/mydata/mysql/conf",
"Destination": "/etc/mysql",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
},
{
"Type": "bind",
"Source": "/mydata/mysql/data",
"Destination": "/var/lib/mysql",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
},
{
"Type": "bind",
"Source": "/mydata/mysql/log",
"Destination": "/var/log/mysql",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
}
],
"Config": {
"Hostname": "a7257e0aa936",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"3306/tcp": {},
"33060/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"MYSQL_ROOT_PASSWORD=root",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"GOSU_VERSION=1.12",
"MYSQL_MAJOR=5.7",
"MYSQL_VERSION=5.7.30-1debian10"
],
"Cmd": [
"mysqld"
],
"Image": "mysql:5.7",
"Volumes": {
"/var/lib/mysql": {}
},
"WorkingDir": "",
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "aa4e09dcacb7ebc46bb6738626917ff46896d3ea373e31a3d3bba6478d247890",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"3306/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "3306"
}
],
"33060/tcp": null
},
"SandboxKey": "/var/run/docker/netns/aa4e09dcacb7",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "90ebb686af6e928d3b2c7171b14e9b03cf9212d396c42d51dbf022eeb7211cbc",
"Gateway": "172.18.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.18.0.4",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:12:00:04",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "2cff131b9cb953b97f8882f1647afa2c809d52aa115629452460e217a8904373",
"EndpointID": "90ebb686af6e928d3b2c7171b14e9b03cf9212d396c42d51dbf022eeb7211cbc",
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.4",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:12:00:04",
"DriverOpts": null
}
}
}
}
]
日常使用命令
以下所有命令使用mysql为容器名执行 (根据自己需要修改容器名或容器ID)
## 获取容器ID
[root@centos ~]# docker inspect -f='{{.Id}}' mysql
a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c
## 获取容器名字
[root@centos ~]# docker inspect -f='{{.Name}}' mysql
/mysql
## 获取容器创建时间
[root@centos ~]# docker inspect -f='{{.Created}}' mysql
2020-05-09T02:10:41.964421619Z
## 获取容器日志路径
[root@centos ~]# docker inspect -f='{{.LogPath}}' mysql
/var/lib/docker/containers/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c/a7257e0aa9363f7a8778903898f977fda7496e30ca85512b89daa7ac517ee87c-json.log
## 运行平台
[root@centos ~]# docker inspect -f='{{.Platform}}' mysql
linux
## 获取容器IP地址
[root@centos ~]# docker inspect -f='{{.NetworkSettings.Networks.bridge.IPAddress}}' mysql
172.18.0.4
其他查看方式
## -f 其实等同于 --format
[root@centos ~]# docker inspect -f='{{.NetworkSettings.Networks.bridge.IPAddress}}' mysql
172.18.0.4
[root@centos ~]# docker inspect --format='{{.NetworkSettings.Networks.bridge.IPAddress}}' mysql
## 上述命令是精确查找. 格式必须按照JSON的层次结构来 .
## 此方式为某个 {} 内寻找 , 比如下述命令未定义 bridge , 而是直接从 Networks 下找 IPAddress .
## 注意 : 前后必须加 range 和 {{end}}
## 并不是很好用 (✪✪✪✪✪不推荐✪✪✪✪✪)
[root@centos ~]# docker inspect -f='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' mysql
172.18.0.4
## grep 方式查看 (✪✪✪✪✪推荐使用✪✪✪✪✪) - 可以看的更全面
## 为什么不直接 docker inspect mysql , 是因为配置太多。找起来麻烦。 所以才精确查找。
## 但是我们也可以通过 grep 局部查找
## 查看容器网络信息 (关注红色关键字部分信息即可)
docker inspect mysql | grep Networks --color -a50
## 查看容器挂载信息 (关注红色关键字部分信息即可)
docker inspect mysql | grep Mounts --color -a50
## --color : 标记颜色
## -a50 : 上下显示50行 (如果显示不全,可以根据需求修改)
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