[lxc-devel] disable container start if lxcfs is not running

[Serge Hallyn]

Stéphane, before I apply this, do you have any objections?

It seems to me if the container is using this hook, then failing
startup if lxcfs isn't running is right.  But it is a change in
behavior.

Quoting Dietmar Maurer (dietmar at proxmox.com):
> Signed-off-by: Dietmar Maurer <dietmar at proxmox.com>
> Acked-by: Serge E. Hallyn <serge.hallyn at ubuntu.com>
> 
> Index: new/share/lxc.mount.hook.in
> ===================================================================
> --- new.orig/share/lxc.mount.hook.in
> +++ new/share/lxc.mount.hook.in
> @@ -15,6 +15,9 @@ if [ -d @LXCFSTARGETDIR@/proc/ ]; then
>          [ -e "${LXC_ROOTFS_MOUNT}/proc/$(basename $entry)" ] || continue
>          mount -n --bind $entry ${LXC_ROOTFS_MOUNT}/proc/$(basename $entry)
>      done
> +else
> +    >&2 echo "missing /var/lib/lxcfs/proc/ - lxcfs not running?"
> +    exit 1
>  fi
>  
>  # /sys/fs/cgroup files
> 
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