Date: Mon, 15 Jun 2015 16:28:28 -0400 From: Allan Jude <allanjude@freebsd.org> To: freebsd-jail@freebsd.org Subject: Re: zfs in a jail Message-ID: <557F356C.4060708@freebsd.org> In-Reply-To: <20150613035921.GA22078@blazingdot.com>
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[-- Attachment #1 --] On 2015-06-12 23:59, Marcus Reid wrote: > Hi, > > I'm doing zfs from within a jail, and there is one thing that's giving > me some trouble. > > First, the bits that get zfs working from inside a jail: > > /etc/jail.conf: > allow.mount; > allow.mount.zfs; > enforce_statfs = 1; > > /etc/sysctl.conf: > security.jail.mount_allowed=1 > security.jail.mount_zfs_allowed=1 > security.jail.enforce_statfs=1 > > zfs set jailed=on zroot/jails/git/git > > Finally, to get the dataset visible inside the jail, this is required > when the jail is running: > > zfs jail git zroot/jails/git/git > > So, in jail.conf, I do a: > > exec.poststart = "zfs jail git zroot/jails/git/git" > > Problem: zfs is not visible in jail after a reboot. This problem is > understood but I don't know the solution. > > exec.poststart is run after exec.start (the thing that runs /etc/rc in > the jail), so the zfs datasets are not yet visible when /etc/rc.d/zfs > runs in the jail. So, I have to log into the jail and do a 'zfs mount > -a' after everything comes up. Not ideal. If there were a > exec.postcreate directive in jail.conf that ran a command on the host > after jail creation but before /etc/rc starts, then I could run 'zfs > jail' before the jails init scripts are run. > > Am I going about that in the wrong way? jail.conf seems like the right > place for it, because you want your storage working after a 'jail -rc > git', right? > > Thanks, > > Marcus > _______________________________________________ > freebsd-jail@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-jail > To unsubscribe, send any mail to "freebsd-jail-unsubscribe@freebsd.org" > If you set: zfs_enable="YES" in rc.conf inside the jail, it runs 'zfs mount -a' as part of the startup routine. This is how it is expected to work. -- Allan Jude [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJVfzVxAAoJEBmVNT4SmAt+xX4P/0rMKDVRvAjK5YcSX8xNapYh E02G/OnjRMNRjc1s8pQtuFefPqhiQk4gCk4gt+rCxikRLA3kmDOC+q0WuOLUnazs RuhNhbwyO5wK6eiy+jyGv86ahOdGUIskwqDGzo9ZnAyufXfCBBIlpcfkTi8HJ1Ca M0fkHYDVomUhhqq+TDPi6FZGQaoeqbm8Iae+GzBCtTPBd2pZKPuQvw0d6kAaXsXH hsduS+3KOORR2GD0sUzN45W42XvMCIjsWh/QnouYiVkM6mHTFa3GNqcup9CfAK4+ hGjrvjFxyqczdvSzbbfi1iY7EUZPtmhqL5YB4julK5XgpGS2sNG1xaiZfi/GvZ1b oKLGhn0ZVPc4MaX6PJ0fwh+X7RjZUJ7yFb9zXH0x8BLk2Jp5K1HaudTGJteIRBTq ybfu4tTrHUSW3eEieVjOb82YH+YCdpuv6oV65Wvwb1SXW/dJmvopEeGlt78hLkg+ FsTTLE5K5hrhH33cgQNu1A+GK4RgjqMf2On0G2gopJgM1/L6T/VjxmS3bKmLBKHf 8h9AGjGvdZDouhsC3J4+UrKz8Wg5FSIGyBnIKyOFAip3VxmzyBt/FscSO78REGCd txOYWo2759yhNUpRnwm1frQ9odV5ZqPnE1z88AKB3aizAQnSzMRE79TbCq3RsLjR 7fghtbW6wMOrN5GD2NTp =7zaJ -----END PGP SIGNATURE-----help
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