Docker 训练之 run hello-world

 1 docker run 

docker run hello-world

docker run -rm  //rm 参数表示退出容器之后，这个容器就被删除了

　　

 

 2 docker images

docker images //列出当前环境中的docker image 列表

　　

      

3 docker ps

 此处执行docker ps 看到并没有running 的container 被列出，是因为hello-world这个container在运行之后即刻退出了

 

     

4 使用docker inspect <imagename>来查看指定docker image的信息

    

docker inspect d1165
[
    {
        "Id": "sha256:d1165f2212346b2bab48cb01c1e39ee8ad1be46b87873d9ca7a4e434980a7726",
        "RepoTags": [
            "hello-world:latest"
        ],
        "RepoDigests": [
            "hello-world@sha256:df5f5184104426b65967e016ff2ac0bfcd44ad7899ca3bbcf8e44e4461491a9e"
        ],
        "Parent": "",
        "Comment": "",
        "Created": "2021-03-05T23:25:25.230064203Z",
        "Container": "f5a78ef54769bb8490754e9e063a89f90cc8eee6a6c5a0a72655826e99df116e",
        "ContainerConfig": {
            "Hostname": "f5a78ef54769",
            "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 [\"/hello\"]"
            ],
            "Image": "sha256:77fe0a37fa6ce641a004815f2761a9042618557d253f312cd3da61780e372c8f",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {}
        },
        "DockerVersion": "19.03.12",
        "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": [
                "/hello"
            ],
            "Image": "sha256:77fe0a37fa6ce641a004815f2761a9042618557d253f312cd3da61780e372c8f",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": null
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": 13336,
        "VirtualSize": 13336,
        "GraphDriver": {
            "Data": {
                "MergedDir": "/var/lib/docker/overlay2/2cb70d969b4b2e9c25ab3af3676d701c0483f556ea340a6424ae6f3dc6fbae08/merged",
                "UpperDir": "/var/lib/docker/overlay2/2cb70d969b4b2e9c25ab3af3676d701c0483f556ea340a6424ae6f3dc6fbae08/diff",
                "WorkDir": "/var/lib/docker/overlay2/2cb70d969b4b2e9c25ab3af3676d701c0483f556ea340a6424ae6f3dc6fbae08/work"
            },
            "Name": "overlay2"
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:f22b99068db93900abe17f7f5e09ec775c2826ecfe9db961fea68293744144bd"
            ]
        },
        "Metadata": {
            "LastTagTime": "0001-01-01T00:00:00Z"
        }
    }