为了检查图像,您可以使用由存储库和标签组成的图像ID或图像名称。假设您有CentOS 6基本映像:
➜ ~ docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos centos6 cf2c3ece5e41 2 weeks ago 194.6 MB
在这种情况下,您可以运行以下任一操作:
➜ ~ docker inspect cf2c3ece5e41
➜ ~ docker inspect centos:centos6
这两个命令都将为您提供JSON数组中的所有可用信息:
[ { "Id": "sha256:cf2c3ece5e418fd063bfad5e7e8d083182195152f90aac3a5ca4dbfbf6a1fc2a", "RepoTags": [ "centos:centos6" ], "RepoDigests": [], "Parent": "", "Comment": "", "Created": "2016-07-01T22:34:39.970264448Z", "Container": "b355fe9a01a8f95072e4406763138c5ad9ca0a50dbb0ce07387ba905817d6702", "ContainerConfig": { "Hostname": "68a1f3cfce80", "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\"]" ], "Image": "sha256:cdbcc7980b002dc19b4d5b6ac450993c478927f673339b4e6893647fe2158fa7", "Volumes": null, "WorkingDir": "", "Entrypoint": null, "OnBuild": null, "Labels": { "build-date": "20160701", "license": "GPLv2", "name": "CentOS Base Image", "vendor": "CentOS" } }, "DockerVersion": "1.10.3", "Author": "https://github.com/CentOS/sig-cloud-instance-images", "Config": { "Hostname": "68a1f3cfce80", "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" ], "Image": "sha256:cdbcc7980b002dc19b4d5b6ac450993c478927f673339b4e6893647fe2158fa7", "Volumes": null, "WorkingDir": "", "Entrypoint": null, "OnBuild": null, "Labels": { "build-date": "20160701", "license": "GPLv2", "name": "CentOS Base Image", "vendor": "CentOS" } }, "Architecture": "amd64", "Os": "linux", "Size": 194606575, "VirtualSize": 194606575, "GraphDriver": { "Name": "aufs", "Data": null }, "RootFS": { "Type": "layers", "Layers": [ "sha256:2714f4a6cdee9d4c987fef019608a4f61f1cda7ccf423aeb8d7d89f745c58b18" ] } } ]