Feature Request: runsc tar rootfs-upper to export overlay upper layer
Feature Request: runsc tar rootfs-upper to export overlay upper layer: a task in LegoFlow-SWE (Harbor dataset). When gVisor uses an overlayfs‑backed rootfs, any filesystem changes made inside the sandbox (creating files, directories, etc.) are stored in the overlay’s upper layer and are not…
The task
When gVisor uses an overlayfs‑backed rootfs, any filesystem changes made inside the sandbox (creating files, directories, etc.) are stored in the overlay’s upper layer and are **not** directly visible on the host. There is currently no built‑in mechanism to snapshot or extract this diff layer as a standard tar…
Part of Lego-X/LegoFlow-SWE.