On Mon, 2012-10-08 at 18:17 +0200, Jakub Hrozek wrote:
> On Fri, Aug 17, 2012 at 12:20:27PM -0400, Simo Sorce wrote:
> > 
> > 
> > ----- Original Message -----
> > > Hi,
> > > 
> > > the attached patches add the directory the SSSD writes domain-realm
> > > mappings as includedir to krb5.conf when installing the client.
> > > 
> > > [PATCH 1/3] ipachangeconf: allow specifying non-default delimeter for
> > > options
> > > ipachangeconf only allows one delimeter between keys and values. This
> > > patch adds the possibility of also specifying "delim" in the option
> > > dictionary to override the default delimeter.
> > > 
> > > On a slightly-unrelated note, we really should think about adopting
> > > Augeas. Changing configuration with home-grown scripts is getting
> > > tricky.
> > > 
> > > [PATCH 2/3] Specify includedir in krb5.conf on new installs
> > > This patch utilizes the new functionality from the previous patch to
> > > add
> > > the includedir on top of the krb5.conf file
> > > 
> > > [PATCH 3/3] Add the includedir to krb5.conf on upgrades
> > > This patch is completely untested and I'm only posting it to get
> > > opinions. At first I was going to use an upgrade script in %post but
> > > then I thought it would be overengineering when all we want to do is
> > > prepend one line.. Would a simple munging like this be acceptable or
> > > shall I write a full script?
> > 
> > NACK, using a scriptlet is fine, but not the way you did, as it has a huge 
> > race condition where krb5.conf exists and has only one line in it (the 
> > include line).
> > 
> > You should first create the new file: echo "include ..." > 
> > /etc/krb.conf.ipanew
> > Then cat the contents of the existing file in i:t cat /etc/krb.conf >> 
> > /etc/krb.conf.ipanew
> > And finally atomically rename it: mv /etc/krb.conf.ipanew /etc/krb.conf
> > 
> > This method is also safe wrt something killing the yum process ...
> > 
> > Simo.
> 
> I'm attaching a new revision of the patches not even two months after
> the original nack.
> 
> I also think it might be nice to have a more general way of upgrading
> the client config so I filed
> https://fedorahosted.org/freeipa/ticket/3149

ACK

Simo.


-- 
Simo Sorce * Red Hat, Inc * New York

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