CernVM-FS Coordination Meeting

Tuesday 13 Nov 2018, 17:00 → 18:35 Europe/Zurich

2-R-021 (CERN)

17:00 → 17:20 Fuse in user namespaces

• Requires kernel >= 4.18 with CONFIG_USER_NS=yes and sysctl kernel.unprivileged_userns_clone = 1
• The /dev/fuse device must be already present because creating it requires CAP_MKNOD, which is not governed by a name space
• Can be tested with
  • unshare --user --map-root-user --mount
  • Bind mount /dev /sys /proc /etc/resolv.conf onto a Ubuntu root fs
  • chroot into the Ubuntu root fs, run sshfs
• We should check wether we can connect to the same shared cache manager from multiple name spaces

17:20 → 17:40 Configuration for hsf.org

17:40 → 18:00 Upcoming Releases and Round Table

Tickets