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描述
根据容器的更改创建新图像
使用
docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
备选方案
名字，简写 | 默认 | 描述 |
|---|---|---|
--author, -a | 作者（例如，“John Hannibal Smith hannibal@a-team.com”） | |
--change, -c | 将Dockerfile指令应用于创建的映像 | |
--message, -m | 提交消息 | |
--pause, -p | true | 在提交期间暂停容器 |
父命令
命令 | 描述 |
|---|---|
docker | Docker CLI的基本命令。 |
扩展描述
将容器的文件更改或设置提交到新映像可能很有用。这允许您通过运行交互式shell来调试容器，或者将工作数据集导出到另一台服务器。一般来说，最好使用Dockerfiles以文件化和可维护的方式管理您的图像。详细了解有效的图片名称和标签。
提交操作将不包括安装在容器内的卷中包含的任何数据。
默认情况下，提交的容器及其进程将在图像提交时暂停。这可以降低创建提交过程中遇到数据损坏的可能性。如果此行为不受欢迎，请将该--pause选项设置为false。
该--change选项将对Dockerfile创建的图像应用说明。支持的Dockerfile说明：CMD| ENTRYPOINT| ENV| EXPOSE| LABEL| ONBUILD| USER| VOLUME|WORKDIR
实例
提交容器
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky 197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton $ docker commit c3f279d17e0a svendowideit/testimage:version3 f5283438590d $ docker images REPOSITORY TAG ID CREATED SIZE svendowideit/testimage version3 f5283438590d 16 seconds ago 335.7 MB
提交具有新配置的容器
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton
$ docker inspect -f "{{ .Config.Env }}" c3f279d17e0a[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin]$ docker commit --change "ENV DEBUG true" c3f279d17e0a svendowideit/testimage:version3
f5283438590d
$ docker inspect -f "{{ .Config.Env }}" f5283438590d[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin DEBUG=true]提交新的CMD和EXPOSE说明的容器
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky 197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton $ docker commit --change='CMD ["apachectl", "-DFOREGROUND"]' -c "EXPOSE 80" c3f279d17e0a svendowideit/testimage:version4 f5283438590d $ docker run -d svendowideit/testimage:version4 89373736e2e7f00bc149bd783073ac43d0507da250e999f3f1036e0db60817c0 $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 89373736e2e7 testimage:version4 "apachectl -DFOREGROU" 3 seconds ago Up 2 seconds 80/tcp distracted_fermat c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky 197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton