Date: Fri, 27 Apr 2012 23:37:13 +0200 From: Johan Hendriks <joh.hendriks@gmail.com> To: Frank Staals <frank@fstaals.net> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Synchronising jails Message-ID: <7D6B2E86-2318-495C-A13C-87E122F013FD@gmail.com> In-Reply-To: <m2ehr9tf8h.fsf@fstaals.net> References: <m2ehr9tf8h.fsf@fstaals.net>
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>=20 > Hey Everyone, >=20 > I'm looking for a way to synchronise two jails. More specifically, I > would like to keep/maintain an exact copy of a given jail. As an > example: Suppose I build a jail A on some system (in my particular case > build with ezjail) , and I copy the jail > into jail B on some other system (using tar, as is mentioned > here: http://forums.freebsd.org/showthread.php?t=3D17813). Now stuff > happens in Jail A, e.g. files change, new stuff is installed etc. I > would like to propagate these changes to jail B, but since the transfer > is over WAN I would like not to have to copy the entire jail again, just > the stuff that has changed since the last backup. It is safe to assume > nothing in Jail B changes: I basically want to maintain the exact copy > so if something would happen to the system running Jail A I can > immediately switch to jail B without much hassle.=20 >=20 > Normally I would say this a perfect use case for rsync. But as the > aforementioned thread mentions ``scp or similar wont work to copy a > jail'', and I consider rsync similar to scp, I am under the impression > that rsync would not be usable in this situation. Can anyone shed some > light on this, or suggest an alternative to synchronise the jails? =20 >=20 >=20 > Regards,=20 >=20 > --=20 >=20 > - Frank > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.or= g" Maybe you can store your jails on a per jail zfs filesystem. Then use zfs send/receive to send the incremental changes to the remote mach= ine. Regards, Johan Hendriks=
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