The running container of Docker in Centos7 notes is saved as a mirror image

1. Make the container a mirror image

[root@s40 testdocker]# docker ps
CONTAINER ID   IMAGE         COMMAND                  CREATED         STATUS         PORTS                                              NAMES
037a9e559269   nginx:1.9.7   "nginx -g 'daemon of…"   3 minutes ago   Up 3 minutes   443/tcp, 0.0.0.0:37210->80/tcp, :::37210->80/tcp   xnginx1
[root@s40 testdocker]# 
[root@s40 testdocker]# #修改容器中的一些内容
[root@s40 testdocker]# docker exec -it 037a9e559269 bash
[root@s40 testdocker]# 
[root@s40 testdocker]# #将名为037a9e559269的容器打包成名为weba:1.0的新镜像
[root@s40 testdocker]# docker commit -a 'kahn' -m "heheheshuoming" 037a9e559269  weba:1.0
[root@s40 testdocker]# docker images
REPOSITORY                                              TAG       IMAGE ID       CREATED          SIZE
weba                                                    1.0       d26da579219a   7 seconds ago    133MB
xnginx                                                  1.9.7     13d4b63abbd0   28 minutes 

2. The image is packaged locally

[root@s40 testdocker]# 
[root@s40 testdocker]# docker images
REPOSITORY                                              TAG       IMAGE ID       CREATED          SIZE
weba                                                    1.0       d26da579219a   3 minutes ago    133MB
xnginx                                                  1.9.7     13d4b63abbd0   32 minutes ago   133MB
root@s40 testdocker]# docker save -o weba.tar weba:1.0
[root@s40 testdocker]# 
[root@s40 testdocker]# ls
weba.tar 

3. Import the local image file package to the local image warehouse

[root@s40 testdocker]# ls
weba.tar
[root@s40 testdocker]# docker load -i weba.tar 
c5e9f6adead0: Loading layer [==================================================>]  7.168kB/7.168kB
Loaded image: weba:1.0
[root@s40 testdocker]#