Quick article on how to use the atomic storage commands to swap out an underlying storage device used for docker’s graph storage.

• I am currently using overlay2 for docker storage, and /var/lib/docker is currently on my root partition
• I want to add a 2nd disk just for docker storage.
• I want to keep my images, rather than have to download them again.

I have a few images in my system:

Continue reading “Juggling backing disks for docker on RHEL7, using atomic storage migrate” →