Create a mirror
First, create a mirror according to dockerfile
1、mkdir dockerfile/lib/centos7base/
Create a directory
2. Create Dockerfile
vim Dockerfile
3, the mirror Construction
docker build -t wyxcentos7 .
Process analytical
docker image is read-only, why there can be customized on the basis of operating centos mirror on it?
We look at the compilation process docker
The first step of the compiler (green border) will be before reuse existing centos: 7
focuses on the second step
882832c2b8eb is in fact centos: a temporary container is generated on the basis of 7 mirrored id
we ignore the installation of vim, jump to the last
Finally docker commit to generate the image file generated according to the temporary container, and finally delete the temporary container (blog shown started control is understood)
2, the container constructed in accordance with the mirror
1, pull to a mirror
docker run -it centos
（run =（pull start exec））
2, View vim
3, a mounting vim
yum intall vim
4, Exit container
exit
5, submitted by container
Into the container
docker exec -it 69d1 bash
quit
exit
Push the mirror to harbor
1, playing tag
docker tag wyxcentosvim:latest 192.168.31.101/library/wyxcentosvim:latest
2, Push
docker push wyxcentosvim:latest 192.168.31.101/library/wyxcentosvim:latest
docker push 192.168.31.101/library/wyxcentosvim:1.02
3, delete the local mirror
docker rmi .........
Unable to remove a mirror multiple repositories
The reason: For ImageID deleted, there is more here REPOSITORY name references. By deleting the name of the mirror.
https://blog.csdn.net/JackLiu16/article/details/80581709
4, pulling the mirror
docker pull 192.168.31.101/library/wyxcentosvim:latest
Recommended article: https: //www.jianshu.com/p/1409967439d6