Puppet users - Dec 2009 - Iterating over array to create users and files

I want to do the following

declare variable:

$usernames = [ "chris", "bob", "tim" ]

How would I iterate over it to create something like:

user { "$username":
           home => "/home/$username",
        }

Also is it possible to create a more complex structure with $UID and
$Shell

I''m thinking of something like this:

$users        = [ "chris": {
                                UID   => 800,
                                Shell => "/usr/bin/bash",
                       },
                         "bob": {
                                 UID   => 801,
                                 Shell => "/usr/bin/zsh",
                       }, ]

Then I can reference via
foreach $user $users {
user { "$user":
           home => "/home/$user",
           UID    => $user=>UID,
           Shell  => $user=>Shell,
        }
}

Again this is only pseudocode, but I''m wondering if puppet has this
kind of functionality or if there''s another way to do this that
haven''t found.

Also I want to iterate over an array of names to create individual
files:

$usernames = [ "bob", "tim" ]

foreach $username $usernames {
file { "/etc/httpd/conf.d/${username}-www.conf
         ensure  => present,
        owner   => "root",
        group   => "root",
        mode    =>  "644",
        notify  => Service["httpd"],
        content => $environment ? {
            production  =>
template("services/www/prod-www.conf.erb"),
            staging     =>
template("services/www/stg-www.conf.erb"),
            development =>
template("services/www/dev-www.conf.erb"),
        }
}

With $username in various point in the template.

Are either of these possible?  Can anyone suggest a better way?

I know for the file I can iterate with the template and create one
large conf file, but I''d rather keep the conf files separate based on
user.

Thanks

Chris

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On 03.12.2009 23:29, Chris F wrote:
> I want to do the following
>
> declare variable:
>
> $usernames = [ "chris", "bob", "tim" ]
>
> How would I iterate over it to create something like:
>
> user { "$username":
>             home =>  "/home/$username",
>          }
>
> Also is it possible to create a more complex structure with $UID and
> $Shell
>
> I''m thinking of something like this:
>
> $users        = [ "chris": {
>                                  UID   =>  800,
>                                  Shell =>  "/usr/bin/bash",
>                         },
>                           "bob": {
>                                   UID   =>  801,
>                                   Shell =>  "/usr/bin/zsh",
>                         }, ]
>    
This is kind of close to the user defintion. You may define multiple 
resources of the same type somewhat like that 
(http://reductivelabs.com/trac/puppet/wiki/LanguageTutorial#resource-collections)



> Then I can reference via
> foreach $user $users {
> user { "$user":
>             home =>  "/home/$user",
>             UID    =>  $user=>UID,
>             Shell  =>  $user=>Shell,
>          }
> }
>    
As far as I know puppet does not have iterative statements (except for 
templates which are a diffrent topic).
You could create a define, which receives your parameters and builds 
other resources, and use the above semantics (from the link)

ie
define user_home($user,$UID, $Shell)
{
     user { $user:
         home => "/home/${user}",
         uid    => $UID,
         shell    => $Shell,
}

and use it as


user_home
{
     "user1":
         blah;
     "user2":
         blah;
}
> Again this is only pseudocode, but I''m wondering if puppet has
this
> kind of functionality or if there''s another way to do this that
> haven''t found.
>
> Also I want to iterate over an array of names to create individual
> files:
>
> $usernames = [ "bob", "tim" ]
>
> foreach $username $usernames {
> file { "/etc/httpd/conf.d/${username}-www.conf
>           ensure  =>  present,
>          owner   =>  "root",
>          group   =>  "root",
>          mode    =>   "644",
>          notify  =>  Service["httpd"],
>          content =>  $environment ? {
>              production  => 
template("services/www/prod-www.conf.erb"),
>              staging     => 
template("services/www/stg-www.conf.erb"),
>              development => 
template("services/www/dev-www.conf.erb"),
>          }
> }
>
> With $username in various point in the template.
>
> Are either of these possible?  Can anyone suggest a better way?
>
> I know for the file I can iterate with the template and create one
> large conf file, but I''d rather keep the conf files separate based
on
> user.
>
> Thanks
>
> Chris
>
> --
>
> You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
> To post to this group, send email to puppet-users@googlegroups.com.
> To unsubscribe from this group, send email to
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> For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.
>
>
>    
Cheers,
     Silviu

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