docker inspect命令查看镜像详细信息 / 开普饭

使用 inspect 命令查看镜像详细信息，包括制作者、适应架构、各层的数字摘要等。

# docker inspect --help Usage: docker inspect [OPTIONS] NAME|ID [NAME|ID...] 返回Docker对象的底层信息选项: -f, --format string 　　使用给定的Go模板格式化输出 -s, --size 　　　　　如果类型是container，则显示总文件大小　 --type string 　　返回指定类型的JSON

例如：创建ubuntu：18.04镜像，查询该镜像的信息

# docker pull ubuntu:18.04　　　　//创建镜像

# docker images　　　　// 查询所有的镜像
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
ubuntu              18.04               d131e0fa2585        13 days ago         102MB

# docker inspect ubuntu:18.04 // 查看镜像的详细信息 [ { 'Id': 'sha256:d131e0fa2585a7efbfb187f70d648aa50e251d9d3b7031edf4730ca6154e221e', 'RepoTags': [ 'ubuntu:18.04' ], 'RepoDigests': [ 'ubuntu@sha256:d26d529daa4d8567167181d9d569f2a85da3c5ecaf539cace2c6223355d69981' ], 'Parent': '', 'Comment': '', 'Created': '2019-04-26T22:21:05.100534088Z', 'Container': '8a681ed429a156522e3703d03bc9be8f543afca51f828e29e8bea369b2da5ac3', 'ContainerConfig': { 'Hostname': '8a681ed429a1', 'Domainname': '', 'User': '', 'AttachStdin': false, 'AttachStdout': false, 'AttachStderr': false, 'Tty': false, 'OpenStdin': false, 'StdinOnce': false, 'Env': [ 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin' ], 'Cmd': [ '/bin/sh', '-c', '#(nop) ', 'CMD [\'/bin/bash\']' ], 'ArgsEscaped': true, 'Image': 'sha256:84a91c92bc7d7ffc41fdc12d50d8c205330f2c2f5f6b6725def71a46782b0ab5', 'Volumes': null, 'WorkingDir': '', 'Entrypoint': null, 'OnBuild': null, 'Labels': {} }, 'DockerVersion': '18.06.1-ce', 'Author': '', 'Config': { 'Hostname': '', 'Domainname': '', 'User': '', 'AttachStdin': false, 'AttachStdout': false, 'AttachStderr': false, 'Tty': false, 'OpenStdin': false, 'StdinOnce': false, 'Env': [ 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin' ], 'Cmd': [ '/bin/bash' ], 'ArgsEscaped': true, 'Image': 'sha256:84a91c92bc7d7ffc41fdc12d50d8c205330f2c2f5f6b6725def71a46782b0ab5', 'Volumes': null, 'WorkingDir': '', 'Entrypoint': null, 'OnBuild': null, 'Labels': null }, 'Architecture': 'amd64', 'Os': 'linux', 'Size': 101749224, 'VirtualSize': 101749224, 'GraphDriver': { 'Data': { 'LowerDir': '/var/lib/docker/overlay2/14c1542a6a61092a163802f3203e0512cb1fa153eca5cda828924c46822e0eaf/diff:/var/lib/docker/overlay2/3d8d8a83488a0033eeed1959ac5507e28726de2d83ba532f8f732a7281289b98/diff:/var/lib/docker/overlay2/71a99fbfabcd98c9c6f3d5aa99ccf2e837e37c293a22d01f9cf94c2e188dbadc/diff', 'MergedDir': '/var/lib/docker/overlay2/50abaded2d1867213face044a814770c0d74fefc8b78b5776aa2c05c148147e3/merged', 'UpperDir': '/var/lib/docker/overlay2/50abaded2d1867213face044a814770c0d74fefc8b78b5776aa2c05c148147e3/diff', 'WorkDir': '/var/lib/docker/overlay2/50abaded2d1867213face044a814770c0d74fefc8b78b5776aa2c05c148147e3/work' }, 'Name': 'overlay2' }, 'RootFS': { 'Type': 'layers', 'Layers': [ 'sha256:604cbde1a4c8fee1b102f8b64d4f41e62d770b5f8a6b06fb809cfd873a2643c3', 'sha256:5d74a98c48bcfc2d04e9d679ea095d360ac0b2f2a27312c8e95a7f5ba5341d9c', 'sha256:94e5c4ea5da6d2a5e0232458e8f14a2cdba0d0f0ce1bdd8098789477c89a7f45', 'sha256:7660ded5319c352f98b8b305b6bd11a501b9704f5e31d1e3b1d3da644f1c3fb8' ] }, 'Metadata': { 'LastTagTime': '0001-01-01T00:00:00Z' } } ]

查看镜像的某一项信息：-f

查看镜像的Os信息：

# docker inspect -f {{'.Os'}} ubuntu:18.04
linux

查看镜像的Config信息

# docker inspect -f {{'.Config'}} ubuntu:18.04 { false false false map[] false false false [PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin] [/bin/bash] <nil> true sha256:84a91c92bc7d7ffc41fdc12d50d8c205330f2c2f5f6b6725def71a46782b0ab5 map[] [] false [] map[] <nil> []}

docker inspect命令查看镜像详细信息

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