Volumes are the preferred method for persisting data for Docker containers. In this article, I will show how to create and use volumes for persistence, as well as tmpfs for temporary storage. At its absolute simplest, creating and mounting a volume backed by a local directory looks like: # make host directory mkdir -p /data … Docker: Working with local volumes and tmpfs mounts
If you are using the overlay2 storage driver, you can place limits on the rootfs within a container but only if using an xfs backing filesystem (not ext4). As a quick test of your Docker install, check your Docker storage driver and backing filesystem, then attempt to spin up a small alpine image with a … Docker: Use overlay2 with an xfs backing filesystem to limit rootfs size
The physical partitions and filesystem formats on your host are configured for your main workload, but if you want an application to use a specific filesystem (xfs, ext4, zfs) and size capacity without reconfiguration at the physical level then you can consider a loopback image. For example, if we create a 100Mb disk file named … Linux: Mounting a loopback ext4/xfs filesystem to isolate or enforce storage limits
XFS is a journaled filesystem that has excellent parallel performance, and is licensed under the GPL which means it has been included in many Linux distributions. One of the features of XFS is the ability to enforce quotas based on user, group, and project. In this article, I will show how to assign filesize quotas … Linux: Using xfs project quotas to limit capacity within a subdirectory