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基於已有映象的容器建立映象

啟動Docker

[root@localhost ~]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                    PORTS
NAMES db70bb3f6068 centos "/bin/bash" 27 hours ago Exited (0) 27 hours ago serene_wright [root@localhost ~]# docker start db70bb3f6068 db70bb3f6068 [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED
STATUS PORTS NAMES db70bb3f6068 centos "/bin/bash" 28 hours ago Up 55 minutes serene_wright [root@localhost ~]# docker exec -it db70bb3f6068 /bin/bash [root@db70bb3f6068 /]#

更改

[root@db70bb3f6068 /]# wget
bash:
wget: command not found [root@db70bb3f6068 /]# yum install -y net-tools wget

提交新映象

[root@db70bb3f6068 /]# exit
exit
[root@localhost ~]# docker commit -m "cantos_with_nettools_and_wget" -a "root" db70bb3f6068 centos_with_net
[root@localhost ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
centos_with_net     latest              3e8ea8607f08        24 seconds ago      294.9 MB
centos              latest              9baab0af79c4        9 days ago          196.7 MB