ConceptOverlay文件系统 / 联合文件系统
OverlayFS
A union filesystem supported by the Linux kernel that mounts multiple directories in a stacked manner, allowing containers to share read-only image layers while recording changes in a writable layer. It is the underlying implementation mechanism for Docker's layered image storage.
Timeline (last 90 days)
Oct 5
OverlayFS, as a union filesystem, allows multiple containers to share the read-only layers of the same image and records differences only in the writable layer, serving as the underlying support for Docker's image layering design.
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