Re: Autofs LDAP mount question

[Ian Kent <raven@themaw.net>]

On Wed, 2010-03-10 at 22:00 -0700, Techie wrote:
> Hello,
> 
> I have a simple question regarding LDAP direct map mounts.
> 
> If I use a local direct map "/etc/direct_map"  with the below contents
> to map NFS directories on two different file systems.
> 
> /data                                    red:/usr/local/app   \
>          /libs/apps                    red:/var/libs/apps
> 
> Both mount points to map properly. The /data directory shows the
> correct contents of red:/usr/local/app. And the /data/lib/apps
> directory also shows the correct contents of  red:/var/libs/apps. This
> is what I believe are nested mount points. However when I try the same
> thing with an LDAP direct map it fails. he contents of the same map in
> LDAP is below.
> 
> dn: automountKey=/data,automountMapName=direct_map,ou=Autofs,dc=example,dc=com
> automountInformation: -fstype=nfs,rw red:/usr/local/app
> automountKey: /data
> objectClass: automount
> objectClass: top
> 
> dn: automountKey=/data/libs/apps,automountMapName=direct_map,ou=Autofs,dc=example,dc=com
> automountKey: /data/libs/apps
> objectClass: automount
> objectClass: top
> automountInformation: -fstype=nfs,rw red://var/libs/apps
> 
> 
> When I do this in my LDAP map as shown above, the mount points do not
> show up correctly. The /data directory covers up one of the 2 mount
> points. So it looks like nested mount points don't work in LDAP or I
> am not using correct syntax. All my other LDAP mounts work but two
> mount points in the same dir does not work like it does with local
> direct maps.
> 
> Can you please confirm or deny if I can achieve nested mount points
> using LDAP direct maps like I can with local direct maps as shown
> above?

LDAP map isn't quite right.

The LDAP map entry must be the same as your file map.

In your file map the direct mount is
key = "/data"
location = "/ red:/usr/local/app /libs/apps red:/var/libs/apps"

In your original file map the "/" offset has been implied because the
syntax allows it to be optional.

and in LDAP
key = "/data"
location = "red:/usr/local/app"

key = "/data/libs/apps"
Invalid, you can't nest distinct direct mounts.

You need to use the same value for location as you did for the file map
in LDAP.

> 
> 
> Thank you
> 
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