今天给大家介绍Docker容器元数据里面包含内容详解，如有不当之处，欢迎大家指正。
查看容器元数据主要通过docker inspect 容器id进行查看。今天通过docker安装的mysql查看启动的容器。
1、命令格式
docker inspect \[OPTIONS\] NAME|ID \[NAME|ID...\]
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 |
使用 inspect 命令可以查看一个容器的具体信息。
2、用法介绍
2.1 查看IP地址
docker inspect --format='\{ \{range .NetworkSettings.Networks\}\}\{ \{.MacAddress\}\}\{ \{end\}\}' 572219d3a0ca
[root@ecs-337444 ~]# docker inspect --format='{
{
range .NetworkSettings.Networks}}{
{
.MacAddress}}{
{
end}}' 572219d3a0ca
02:42:ac:11:00:03
2.2 查看MAC地址
docker inspect --format='\{ \{range .NetworkSettings.Networks\}\}\{ \{.IPAddress\}\}\{ \{end\}\}' 572219d3a0ca
[root@ecs-337444 ~]# docker inspect --format='{
{range .NetworkSettings.Networks}}{
{.IPAddress}}{
{end}}' 572219d3a0ca
172.17.0.3
2.3 查看容器详细信息
docker inspect 572219d3a0ca
下面把能找到资料的参数解释给大家标注一下，大家有不同意见的欢迎留言我会及时更正。
[
{
"Id": "572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84", #完整容器id
"Created": "2022-06-08T08:29:58.542781937Z", #容器创建时间
"Path": "docker-entrypoint.sh", #启动容器时，通过shell脚本执行些预处理逻辑中shell脚本的名称
"Args": [
"mysqld"
],
"State": {
"Status": "running", #容器状态
"Running": true, #是否运行
"Paused": false, #是否暂停
"Restarting": false, #是否重启中
"OOMKilled": false, #进程被杀死
"Dead": false, # 已小王
"Pid": 136172, # 容器进程id
"ExitCode": 0, # 退出状态码
"Error": "", #错误信息
"StartedAt": "2022-07-16T01:47:33.598196195Z", #开始启动时间
"FinishedAt": "2022-07-16T01:47:26.919749746Z" # 上一次结束时间
},
"Image": "sha256:3218b38490cec8d31976a40b92e09d61377359eab878db49f025e5d464367f3b", #镜像的sha256算法id
"ResolvConfPath": "/var/lib/docker/containers/572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84/resolv.conf", # resolv.conf域名系统解析器（DNS Resolver）的配置文件路径
"HostnamePath": "/var/lib/docker/containers/572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84/hostname", #当前容器所在的位置
"HostsPath": "/var/lib/docker/containers/572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84/hosts", #容器host文件（域名、IP配置文件）路径
"LogPath": "/var/lib/docker/containers/572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84/572219d3a0ca25a37623a1113f3c8faa6b48d3ab42ae668eac64fcb39cb4dd84-json.log",#容器运行日志文件路径
"Name": "/mysql9", #镜像名称
"RestartCount": 0, #重启个数
"Driver": "overlay2", #存储驱动，联合文件系统
"Platform": "linux", # 运行平台
"MountLabel": "",#挂载标签
"ProcessLabel": "",#进程标签
"AppArmorProfile": "", #Linux内核中的强制访问控制系统配置文件
"ExecIDs": null, #当前容器正在执行 exec的 ID，多个用数组展示
#主机配置
"HostConfig": {
#容器宿主目录绑定
"Binds": [
"/home/mysql8/conf/my.cnf:/etc/mysql/my.cnf",
"/home/mysql8/logs:/logs",
"/home/mysql8/data:/var/lib/mysql",
"/etc/localtime:/etc/localtime"
],
"ContainerIDFile": "", #？？？
#日志配置
"LogConfig": {
"Type": "json-file", #文件类型 json
"Config": {}
},
"NetworkMode": "default", #网络模式
#端口绑定信息
"PortBindings": {
"3306/tcp": [
{
"HostIp": "",
"HostPort": "3306"
}
]
},
#重启策略
"RestartPolicy": {
"Name": "unless-stopped",#自动重启类似always
"MaximumRetryCount": 0 #最大重试次数
},
"AutoRemove": false, #自动移除
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "host",
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "private",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": true,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": [
"label=disable"
],
"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": null,
"ReadonlyPaths": null
},
#镜像管理驱动
"GraphDriver": {
#联合系统分层信息
"Data": {
#镜像层，目录或者文件是只读的
"LowerDir": "/var/lib/docker/overlay2/77f1db351358d953cb1fe55a79e84597d3cbc3844c2dd249a2acdfa15e402627-init/diff:/var/lib/docker/overlay2/b261e67d747a7a769d143f6d4bc9492684b17680256cdf5962f8145acb6b3dab/diff:/var/lib/docker/overlay2/e88c8d60eec4dee423f121636d8b7a560fe2b4739c6c2361d90e290799989120/diff:/var/lib/docker/overlay2/d8f81e30c57461476828fa01d7faad6cc96f893e55684fabf02bf804f76ca2e8/diff:/var/lib/docker/overlay2/b04b2325906657684ef7914d1834a0e510fc7065c78287ce066b0dd5667273c3/diff:/var/lib/docker/overlay2/f09dec6179a52989205fd2931b31996515e06b8048b139f7cc87982df2f497ad/diff:/var/lib/docker/overlay2/c0eab9ee7da29584d4583dd66199346582f1036f69f9989b7da5f8e72f0fa992/diff:/var/lib/docker/overlay2/2a28cd4140717faa03275c600bae785a8a4b0131337bf04267e000f8569aa0f7/diff:/var/lib/docker/overlay2/733a014a49863d79ffb0d86655d8e3b3ceb4a515266e50c09b6cf02d8f81c9c3/diff:/var/lib/docker/overlay2/5da96f62c2672a8590cb920cf541bc3ac636f1aca7babb540d49316c72e7d74a/diff:/var/lib/docker/overlay2/cdf557bd933d8f3809eb2a4b493f376d81e64ee14d0adbd8a74b57d071f63fd6/diff:/var/lib/docker/overlay2/80e0b0ba180d6736e659f56192c214c95d433e59f0aa6d79bfe66d52fb3c7b73/diff:/var/lib/docker/overlay2/4935d32e3ec461a85af88a19fef5872312b4c43a5adf43848b1f3e25353b7ac8/diff",
#容器的挂载点
"MergedDir": "/var/lib/docker/overlay2/77f1db351358d953cb1fe55a79e84597d3cbc3844c2dd249a2acdfa15e402627/merged",
#读写层，在启动一个容器时候会进行创建，所有的对容器数据更改都发生在这里层，upperdir是可读可写的
"UpperDir": "/var/lib/docker/overlay2/77f1db351358d953cb1fe55a79e84597d3cbc3844c2dd249a2acdfa15e402627/diff",
#工作目录
"WorkDir": "/var/lib/docker/overlay2/77f1db351358d953cb1fe55a79e84597d3cbc3844c2dd249a2acdfa15e402627/work"
},
"Name": "overlay2"
},
#挂载配置
"Mounts": [
{
"Type": "bind", #类型
"Source": "/home/mysql8/logs", #来源目录
"Destination": "/logs", #容器目录
"Mode": "", #模式
"RW": true, #读写权限
"Propagation": "rprivate"
#挂载目录实时更新模式 shared、slave、private、rshared、rslave、rprivate
},
{
"Type": "bind",
"Source": "/home/mysql8/data",
"Destination": "/var/lib/mysql",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
},
{
"Type": "bind",
"Source": "/etc/localtime",
"Destination": "/etc/localtime",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
},
{
"Type": "bind",
"Source": "/home/mysql8/conf/my.cnf",
"Destination": "/etc/mysql/my.cnf",
"Mode": "",
"RW": true,
"Propagation": "rprivate"
}
],
"Config": {
"Hostname": "572219d3a0ca", #容器缩写id
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
#暴露端口
"ExposedPorts": {
"3306/tcp": {},
"33060/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
#环境变量配置
"Env": [
"MYSQL_ROOT_PASSWORD=431557313",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"GOSU_VERSION=1.12",
"MYSQL_MAJOR=8.0",
"MYSQL_VERSION=8.0.27-1debian10"
],
#设置容器的默认执行的命令，不可以追加命令
"Cmd": [
"mysqld"
],
#镜像名 服务名+tag版本
"Image": "mysql:8.0.27",
"Volumes": {
"/var/lib/mysql": {}
},
#工作目录
"WorkingDir": "",
#设置容器的默认执行的命令，可以追加命令
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,#Dockerfile文件构建
"Labels": {}
},
#网络设置
"NetworkSettings": {
"Bridge": "", #网桥
#沙箱id
"SandboxID": "9d8795184ee28e903bb503b42519d5f56a622977f49e4255e771dfcb1c8bdaf3",
"HairpinMode": false, #是否开启发卡模式
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
#端口配置
"Ports": {
"3306/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "3306"
},
{
"HostIp": "::", #外网访问
"HostPort": "3306" #暴力端口
}
],
"33060/tcp": null
},
"SandboxKey": "/var/run/docker/netns/9d8795184ee2", #沙盒密钥路径
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "826898658eec96e305763ce63e6505c4c0e5d152872bf8ae517f73371a8d015e",
"Gateway": "172.17.0.1", #网关地址
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:03", #MAC地址
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "376cfaed3501614c09972655643d3d974e434548773d140c0040d9c268294e51",
"EndpointID": "826898658eec96e305763ce63e6505c4c0e5d152872bf8ae517f73371a8d015e",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:03",
"DriverOpts": null
}
}
}
}
]
