vfs
A Docker storage driver that copies every layer in full instead of using copy-on-write, intended for testing.
In more detail
It works on any filesystem, which is its only advantage. Disk use and build times are much worse than with overlay2.
Related terms
- storage driver — The part of the Docker daemon that decides how image layers and container writable layers are stored on disk.
- OverlayFS — The Linux union filesystem Docker uses to stack image layers into a container root directory.
Taught in
- One Comma, No Engine: Installing And Configuring Docker Engine — Docker Certified Associate (DCA) Exam Prep
- Two Containers, How Much Disk? Storage Drivers, Layers And devicemapper — Docker Certified Associate (DCA) Exam Prep
- Storage Sprint: Eight Questions On Layers, Drivers And Volumes — Docker Certified Associate (DCA) Exam Prep