[et-mgmt-tools] [PATCH] fix zone config matching and minimize the number of zone files generated

[Michael DeHaan]

John Eckersberg wrote:
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> http://jeckersb.fedorapeople.org/cobbler/0001-fix-zone-config-matching-and-minimize-the-number-of.patch 
>
>
> This fixes a few problems that I ran into as I sat down and actually
> started deploying my own feature :)
>
> Previously manage_forward_zones and manage_reverse_zones were optional
> and were supposed to restrict the zone files generated.  Except it
> didn't really work all that well.  For example...
>
> If my settings looked like this:
>
> manage_forward_zones:
> ~    - 'foo.example.com'
>
> Only hosts that matched 'hostname.foo.example.com' would go into the
> zone.  If you had hostname.subdomain.foo.example.com it would not match.
>
> Furthermore if you did not specify manage_forward_zones then it would
> take every host, chop the hostname off the front and create a zone file
> for the remainder of the FQDN.  As I started to use it I realized the
> number of zone files was quickly getting unmanageable.  I have other
> nameservers to configure as slaves for these zones and I was needing to
> update them everytime somebody invented a new subdomain (which around
> here is about every 5 minutes :D).
>
> Which brings us to how things work now.
>
> manage_forward_zones and manage_reverse_zones are now mandatory for BIND
> management.  The items listed in these values will directly map into
> zone files.  Hosts will go into their "best fit" as far as zone files.
> To illustrate this:
>
> If my settings looked like this:
>
> manage_forward_zones:
> ~    - 'foo.example.com'
> ~    - 'bar.foo.example.com'
>
> The host 'baz.bar.foo.example.com' would go into the
> 'bar.foo.example.com' zone whereas the host 's1.foo.example.com' would
> go into the 'foo.example.com' zone.
>
> I hope everyone who is testing this out finds this to be much more
> useful than the way it previously functioned.  I know I sure do.
>
> I'm going to go put most of this information onto the wiki.
>
> - --
> John Eckersberg
> Production Operations
> Red Hat, Inc.
>
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Applied, thanks!

--Michael