docker 容器提交
| Description | Create a new image from a container's changes |
|---|---|
| Usage | docker container commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]] |
| Aliases | docker commit |
描述
将容器的文件更改或设置提交到新镜像中可能很有用。这使您可以通过运行交互式 shell 来调试容器，或将工作数据集导出到另一台服务器。
提交不包括挂载卷中包含的任何数据。
默认情况下，在提交镜像时，正在提交的容器及其进程将被暂停。这减少了在创建提交过程中遇到数据损坏的可能性。如果不希望这种行为，请将--pause选项设置为false。
--change 选项将应用 Dockerfile 指令到创建的镜像中。支持的 Dockerfile 指令：
CMD|ENTRYPOINT|ENV|EXPOSE|LABEL|ONBUILD|USER|VOLUME|WORKDIR
选项
| Option | Default | Description |
|---|---|---|
-a, --author | Author (e.g., John Hannibal Smith <hannibal@a-team.com>) | |
-c, --change | Apply Dockerfile instruction to the created image | |
-m, --message | Commit message | |
-p, --pause | true | Pause container during commit |
示例
提交容器
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:24.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:24.04 /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
提交带有新配置的容器 (--change)
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:24.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:24.04 /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]
提交一个带有新CMD和EXPOSE指令的容器
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:24.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:24.04 /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:24.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:24.04 /bin/bash 7 days ago Up 25 hours focused_hamilton