docker Backup linux system command details

tar backup system

sudo tar cvpzf backup.tgz --exclude=/proc --exclude=/mnt --exclude=/sys --exclude=/backup.tgz /

More linux backup method reference https: / / www ofstack. com article / 151167. htm

Write dockerflie

Create a new directory Dockerfile and edit the Dockerfile script under Dockerfile, as follows:

FROM scratch
COPY rootfs /
RUN chmod u+s /usr/bin/sudo
RUN chmod u+s /usr/bin/passwd
RUN chmod u+s /bin/su
RUN chmod u+s /bin/ping
RUN chmod u+s /bin/mount
RUN chmod u+s /bin/umount
USER root
WORKDIR /home/root

Change username and password as appropriate

Import the backup system files as docker images

1. Create a new directory backup under Dockerfile

2. Unzip the backup tar file to backup directory: tar xvpfz backup.tgz

3.sudo docker build -t centos/centos:7.0 .

conclusion