Re: [Netatalk-admins] Defining Volumes in afp.conf using regex

[Josh W. <whi...@ur...>]

On Jul 6, 2014, at 4:38 PM, Josh Whitver <whi...@ur...> wrote:
> 
> On Jul 6, 2014, at 4:35 PM, Josh Whitver <whi...@ur...> wrote:
> 
>> Hello,
>> 
>> I've got user home directories on my filesystem at /Volumes/FacultyDocs/Fac1/$u, /Volumes/FacultyDocs/Fac2/$u, and /Volumes/FacultyDocs/Fac3/$u.  I've got an automount sharepoint that just references /Volumes/FacultyDocs, and then the home directories are specified in the user's LDAP record to point within the filesystem from there. 
>> 
>> What I'd like to do on top of that, though, is mimic OS X Server's ability to share out just the user's home as well.  I can do that if I define multiple instances of the same sharepoint, like this:
>> 
>> [$u]
>> path = /Volumes/FacultyDocs/homes/Fac1/$u
>> [$u]
>> path = /Volumes/FacultyDocs/homes/Fac2/$u
>> [$u]
>> path = /Volumes/FacultyDocs/homes/Fac3/$u
>> 
>> But that seems inelegant, and won't scale when it comes to my student home directory server, which will have a structure like:
>> /Volumes/StudentDocs/Stu1/[a-d]/$u
>> /Volumes/StudentDocs/Stu2/[e-k]/$u
>> /Volumes/StudentDocs/Stu3/[l-q]/$u
>> /Volumes/StudentDocs/Stu4/[r-z]/$u
>> 
>> ...in order to define those user home sharepoints, I'll need to set up 26 instances of the [$u] sharepoint, only one of which will be valid.  Seems like a waste!
>> 
>> I tried to use a regex in my [$u] sharepoint for Faculty, but couldn't make it work.  So I tried to use the [Homes] sharepoint, where using regex's is explicitly required, and also couldn't make it work.  I tried the following variations:
>> 
>> [Homes]
>> basedir regex = /Volumes/FacultyDocs/homes/Fac*
>> 
>> [Homes]
>> basedir regex = /Volumes/FacultyDocs/homes/Fac.
>> 
>> [Homes]
>> basedir regex = /Volumes/FacultyDocs/homes/Fac*/
>> 
>> [Homes]
>> basedir regex = /Volumes/FacultyDocs/homes/Fac./
>> 
>> The documentation says:
>>> A more complex setup would be a server with a large amount of user homes which are split across eg two different filesystems:
>>> 
>>> 	• /RAID1/homes
>>> 
>>> 	• /RAID2/morehomes
>>> 
>>> The following configuration is required:
>>> 
>>> [Homes]
>>> basedir regex = /RAID./.*homes
>>> 
>> 
>> So it seems like that second variation I tried matches what the documentation suggests, but none of them were successful.
>> 
>> Can someone tell me my error?  Do regex's work in afp.conf, or is there a bug?  Can I use regex's outside of the [Homes] special sharepoint, or are they only valid there?
>> 
>> Thanks!
>> -- 
> 
> As a clarification, a given user's home only exists within either Fac1, Fac2, or Fac3, not all 3.  User A would be Fac1, User H would be Fac2, User R would be Fac3, etc.
> --

After further testing, it appears that defining multiple instances of a sharepoint only works if the match exists on the last instance - so if I've got a home at Fac3, it works fine because I defined Fac3's instance of the $u sharepoint last.  If my home is at Fac2, though, then I don't get my user home.  So it becomes even more important that I get the regex for this working, since I'll only be able to have one sharepoint defined. 
-- 
Josh Whitver
whi...@ur... / jo...@wh...
"Give me ambiguity or give me something else!"