Date: Fri, 27 Apr 2012 13:04:49 -0500 From: Eric Schuele <e.schuele@computer.org> To: freebsd-questions@freebsd.org Subject: Re: Synchronising jails Message-ID: <4F9ADFC1.608@computer.org> In-Reply-To: <m2ehr9tf8h.fsf@fstaals.net> References: <m2ehr9tf8h.fsf@fstaals.net>
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[-- Attachment #1 --] On 04/27/2012 09:35, Frank Staals wrote: > > Hey Everyone, > > 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=17813). 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. > > 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, rsync is dissimilar in that it is capable of preserving links. It may likely do the job? > 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? > > > Regards, > [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+a38EACgkQngSDRM3IXUpmNgCdEm9SMTX+xIaqRAKJi+3Hsg4a w44AniMkQvou52o/VNl7soxkJ9ZAgDI7 =Oblk -----END PGP SIGNATURE-----help
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