Docker命令 - inspect

╰半夏微凉° 2022-12-28 00:53 122阅读 0赞

# 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 :

<table> 
 <thead> 
  <tr> 
   <th>OPTION</th> 
   <th>说明</th> 
   <th>用法</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>-f</td> 
   <td>指定返回值的模板文件</td> 
   <td>docker inspect -f=’{ {.NetworkSettings.Networks.bridge.IPAddress}}’ mysql</td> 
  </tr> 
  <tr> 
   <td>-s</td> 
   <td>显示总的文件大小</td> 
   <td>待更新</td> 
  </tr> 
  <tr> 
   <td>–type</td> 
   <td>为指定类型返回JSON</td> 
   <td>待更新</td> 
  </tr> 
 </tbody> 
</table>

> 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)