docker 把容器commit成镜像

该方法是使用docker commit 命令，其命令格式为：

 docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

主要参数选项包括：

• -a ，–author=”” 作者信息
• -m，–message=”” 提交信息
• -p，–pause=true 提交是暂停容器运行

docker commit +参数 模板容器 构成的镜像

举例：

[root@iZbp16cdvzk4rhl0vn1gedZ ~]# docker run -dit --name aa centos:latest
Unable to find image 'centos:latest' locally
latest: Pulling from library/centos
8ba884070f61: Pull complete
Digest: sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861
Status: Downloaded newer image for centos:latest
c29d6e5a467c11ab34cd4bfd6f3484539711c361310796211db8d1b271ae51f8
[root@iZbp16cdvzk4rhl0vn1gedZ ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
c29d6e5a467c        centos:latest       "/bin/bash"              2 minutes ago       Up 2 minutes                                 aa
957f22f13326        java:latest         "java -jar -Xms256m …"   23 hours ago        Up About an hour    0.0.0.0:8090->8090/tcp   mobile
[root@iZbp16cdvzk4rhl0vn1gedZ ~]# docker commit -a "sjj" -m "这是项目一的第一个版本镜像" aa bb:v1.0
4sha256:3b8d26737bcb99aa12ef55c6e9620720b0ad85ecdee9cd52fbb5d5e1a2da2591
[root@iZbp16cdvzk4rhl0vn1gedZ ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
bb                  v1.0                3b8d26737bcb        12 seconds ago      202MB
centos              latest              9f38484d220f        3 weeks ago         202MB
java                latest              d23bdf5b1b1b        2 years ago         643MB

[root@iZbp16cdvzk4rhl0vn1gedZ ~]# docker image inspect bb:v1.
[
    {
        "Id": "sha256:3b8d26737bcb99aa12ef55c6e9620720b0ad85ecdee9cd52fbb5d5e1a2da2591",
        "RepoTags": [
            "bb:v1.0"
        ],
        "RepoDigests": [],
        "Parent": "sha256:9f38484d220fa527b1fb19747638497179500a1bed8bf0498eb788229229e6e1",
        "Comment": "这是项目一的第一个版本镜像",
        "Created": "2019-04-09T10:30:00.512844021Z",
        "Container": "c29d6e5a467c11ab34cd4bfd6f3484539711c361310796211db8d1b271ae51f8",
        "ContainerConfig": {
            "Hostname": "c29d6e5a467c",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "ArgsEscaped": true,
            "Image": "centos:latest",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "DockerVersion": "18.09.2",
        "Author": "sjj",
        "Config": {
            "Hostname": "c29d6e5a467c",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "ArgsEscaped": true,
            "Image": "centos:latest",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": ,
        "VirtualSize": ,
        "GraphDriver": {
            "Data": {
                "MergedDir": "/var/lib/docker/overlay2/71f5125fb1a5fe97559dce70e96bcef490ca3b80e84f89304e9cf31970633b44/merged",
                "UpperDir": "/var/lib/docker/overlay2/71f5125fb1a5fe97559dce70e96bcef490ca3b80e84f89304e9cf31970633b44/diff",
                "WorkDir": "/var/lib/docker/overlay2/71f5125fb1a5fe97559dce70e96bcef490ca3b80e84f89304e9cf31970633b44/work"
            },
            "Name": "overlay2"
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:d69483a6face4499acb974449d1303591fcbb5cdce5420f36f8a6607bda11854"
            ]
        },
        "Metadata": {
            "LastTagTime": "2019-04-09T18:30:00.521570076+08:00"
        }
    }
]