So how does this work? Can you mount / as the lower layer of the overlayfs? Doesn't that create a weird recursion because the mountpoint is a path inside /?
I used unionfs first to combine the sandbox and / where host / is read-only. Then simply bubblewrap into it. I also mounted / to /host if for some reason you wanted to access host fs from inside the sandbox.
Comments
So how does this work? Can you mount / as the lower layer of the overlayfs? Doesn't that create a weird recursion because the mountpoint is a path inside /?
I used unionfs first to combine the sandbox and / where host / is read-only. Then simply bubblewrap into it. I also mounted / to /host if for some reason you wanted to access host fs from inside the sandbox.