5.Docker 构建自己的镜像

方式1：docker commit

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

[root@localhost ~]# docker run  --net=host -it 5e35e350aded
[root@localhost /]# yum install -y net-tools
...
[root@localhost /]# yum install -y vim
...
[root@localhost /]# 
[root@localhost /]# exit
exit


[root@localhost ~]# docker commit infallible_pascal kpioneer/my-centos
sha256:06e5af7d7a7f87e76fd98d3b1410519003e539a6ce8060a9668905bf12964079
[root@localhost ~]# 
[root@localhost ~]# docker image ls
REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
kpioneer/my-centos   latest              06e5af7d7a7f        15 seconds ago      366MB
centos               7                   5e35e350aded        3 months ago        203MB
[root@localhost ~]# 
[root@localhost ~]# docker history 06e5af7d7a7f
IMAGE               CREATED             CREATED BY                                      SIZE                COMMENT
06e5af7d7a7f        59 seconds ago      /bin/bash                                       163MB               
5e35e350aded        3 months ago        /bin/sh -c #(nop)  CMD ["/bin/bash"]            0B                  
<missing>           3 months ago        /bin/sh -c #(nop)  LABEL org.label-schema.sc…   0B                  
<missing>           3 months ago        /bin/sh -c #(nop) ADD file:45a381049c52b5664…   203MB    

这种方式并不推荐，因为构建的内容不清楚，会造成安全隐患。

方式2：docker build

在 DockerFile文件中 写入

FROM centos
RUN yum install -y vim

保存退出

docker build   -t   kpioneer/centos-new .