On Thursday, September 19, 2013 1:43:07 PM UTC-5, Forrie wrote:
>
> This is something I've been concerned about -- and how to properly
> approach this.
>
> For example, we can use Puppet to ensure that the directories (mount
> points) exist and that the entries are present in /etc/fstab -- but I grow
> very concerned about automating the NFS-mount part of this.
>
> I don't think we'd want to use autofs, as the namespace isn't visible
> unless you "cd" directly into it. We nixed this idea with /home, for
> example.
>
A nitpick: you don't specifically have to "cd" into an automounted
filesystem to get it mounted; any access at all to the mount point itself
or any child path will do ('ls', fopen(3), I/O redirection, etc.). A child
path works to get the filesystem mounted even if it doesn't actually
correspond to a real file.
In a few places I use symlinks to automounted directories. The symlinks
provide visibility in the expected location, but I get all the goodness of
automounting (however much that may or may not be).
>
> What would be the safest ideal way to approach this?
>
>
It's not clear what exactly you hope to achieve. Is it different from what
declaring a Mount with ensure => 'present' will do (which is to ensure the
fs is listed in fstab without managing whether it is mounted)?
You cannot get around the fact that it is impossible to see or touch the
mount point directory underneath a mounted filesystem. Any access to the
mount point path refers to the root of the mounted filesystem instead.
That is a matter of fundamental Unix architecture, quite outside Puppet's
scope.
John
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