Re: Exposing a hierarchy of ZFS datasets inside multiple jails
Moin, I assume the easiest solution would be to make the many mountpoints (datasets) invisiable for NFS. Here we go. teufelchen# /etc/rc.d/jail stop alcatraz ## This will be the dataset which contains home's for example teufelchen# zfs create tank/nullfs ## Now I create a dir which will be shared to the jails ## My idea is to make the mountpoints invisiable for NFS teufelchen# mkdir /mnt/tank/nfs_home teufelchen# mount_nullfs /mnt/tank/nullfs/ /mnt/tank/nfs_home/ teufelchen# mkdir /mnt/tank/alcatraz/mnt/nfs_home teufelchen# cat /mnt/tank/freebsd/fstab.alcatraz 192.168.1.10:/mnt/tank/nfs_home /mnt/tank/alcatraz/mnt/nfs_home nfs rw 0 0 teufelchen# /etc/rc.d/jail start alcatraz ### IIRC ### You like to create datasets on the host, which apear in the jails just in ### time? teufelchen# zfs create tank/nullfs/dataset1 teufelchen# touch /mnt/tank/nfs_home/dataset1/newfile teufelchen# jexec 14 ls /mnt/nfs_home/dataset1/ newfile Is this what you are trying todo? Christian Degen ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to "freebsd-jail-unsubscr...@freebsd.org"
Re: Exposing a hierarchy of ZFS datasets inside multiple jails
On Fri, 17 Jun 2011 14:46:59 -0400 Lars Kellogg-Stedman wrote: > Hello all, > > Hi there, > > I am trying to expose a hierarchy of home directories to a number of > FreeBSD jails. The home directories are configured such that each is a > unique ZFS dataset. The jails are used for development work and hence > are created and destroyed on a regular basis. > > My first thought was simply to use nullfs to mount /home inside the > jail, but nullfs doesn't provide any way to access subordinate > filesystems. > > My second thought was to export the directories via NFS and then run > the automounter daemon (amd) inside each jail. This would have Just > Worked...if it were possible to perform NFS mounts inside a jail. But > it's not. See the second part of the patch at http://www.leidinger.net/FreeBSD/current-patches/sys:nfsclient.diff for how to allow NFS mounts in a jail. Bye, Alexander. -- http://www.Leidinger.netAlexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137 ___ freebsd-jail@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-jail To unsubscribe, send any mail to "freebsd-jail-unsubscr...@freebsd.org"
