$ sudo docker image inspect ubuntu:latest
[
    {
        "Id": "sha256:93fd78260bd1495afb484371928661f63e64be306b7ac48e2d13ce9422dfee26",
        "RepoTags": [
            "ubuntu:latest"
        ],
        "RepoDigests": [
            "ubuntu@sha256:6d0e0c26489e33f5a6f0020edface2727db9489744ecc9b4f50c7fa671f23c49"
        ],
        "Parent": "",
        "Comment": "",
        "Created": "2018-11-19T21:20:42.235528208Z",
        "Container": "1501390588c62f6c7c0e4fec25d6587c75c2f330536b9d08c610a56ed013f64b",
        "ContainerConfig": {
            "Hostname": "1501390588c6",
            "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:a141f6fbdbbcfc331f12db000daa2e636820152fa35dff4ca56cf02382aece7a",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {}
        },
        "DockerVersion": "17.06.2-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:a141f6fbdbbcfc331f12db000daa2e636820152fa35dff4ca56cf02382aece7a",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": null
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": 86178190,
        "VirtualSize": 86178190,
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/35617c0f1bd6672c073badc305bd255230fb1a0231ec880f03e7cf7fade95155/diff:/var/lib/docker/overlay2/80627787a13b59ffcd9b537f8d2cb0d83a2f63a2e863fa9599b6b202c85fc76d/diff:/var/lib/docker/overlay2/58d6ecac59b6b89f21e05ddb77efaaee72b188ac7b8e6fdfd001220f4c65a9e3/diff",
                "MergedDir": "/var/lib/docker/overlay2/54ffe8479304d41b33fcfef094a3dbcaf5898c3c80b047c037092b1ee30f0892/merged",
                "UpperDir": "/var/lib/docker/overlay2/54ffe8479304d41b33fcfef094a3dbcaf5898c3c80b047c037092b1ee30f0892/diff",
                "WorkDir": "/var/lib/docker/overlay2/54ffe8479304d41b33fcfef094a3dbcaf5898c3c80b047c037092b1ee30f0892/work"
            },
            "Name": "overlay2"
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:bc7f4b25d0ae3524466891c41cefc7c6833c533e00ba80f8063c68da9a8b65fe",
                "sha256:a768c3f3878e96565d2bf0dcf90508261862847b2e7b8fc804a0770c07f0d5d5",
                "sha256:ca2991e4676cba899ad9bc6ad3a044cd0816915f9e97a6f2e67b6accbc779ba5",
                "sha256:b9b7103af585bd8ae9130de947817be7ce76092aa19cf6d2f9d5290440c645eb"
            ]
        },
        "Metadata": {
            "LastTagTime": "0001-01-01T00:00:00Z"
        }
    }
]