That is an excellent example, but I think you miss the original point:
Your example deals with only one file resource - the dot-gitconfig file
Suppose you only wanted to perform this action if git was installed on the
system, and do nothing if it was not ?
This additional requirement puts it closer to the original question and this is
where a custom fact is called for in the opinion of several folks on the list
including myself.
If you can offer an example that demonstrates otherwise, I would welcome it.
I do not believe it possible without the custom fact and I have several hours
of frustrated tinkering to show for it. I wanted to set a parameter in a
config file but only if (the config file exists and/or the associated package
is installed) and found I could not do it completely from within the manifest.
“Sometimes I think the surest sign that intelligent life exists elsewhere in
the universe is that none of it has tried to contact us.”
Bill Waterson (Calvin & Hobbes)
----- Original Message -----
From: "Matthias Saou" <matth...@saou.eu>
To: puppet-users@googlegroups.com
Sent: Friday, May 31, 2013 4:00:15 AM
Subject: Re: [Puppet Users] Run a File resource only if another file is missing
There are other ways. None are nice and clean, but a custom fact just
for this seems overkill.
Here's a quick example of how I've implemented creating a default
~/.gitconfig for users if it doesn't exist, but not modify it if it's
already there or has been modified.
$gitconfig_user_name = $mymodule::uservar::fullname[$title]
$gitconfig_user_email = "${title}@example.com"
file { "${home}/.gitconfig":
owner => $owner,
group => $group,
mode => '0644',
require => Exec["create-gitconfig-${title}"],
}
exec { "create-gitconfig-${title}":
command => template('mymodule/user/gitconfig.erb'),
require => User[$title],
creates => "${home}/.gitconfig",
}
The gitconfig.erb has the following content :
/bin/cat > <%= home %>/.gitconfig << EOF
[user]
name = <%= @gitconfig_user_name %>
email = <%= @gitconfig_user_email %>
EOF
Basically, just don't have either 'source' nor 'content' for your file
resource, and create the initial content using an exec with the
'creates' condition.
Matthias
Dan White <y...@comcast.net> wrote:
> Short Answer: You need to create a custom fact that would drive the
> decision to create the new file resource.
>
> I just went thru this issue and also performing an action based on
> whether or not a package (RPM in my case) is installed.
>
> Same answer to both.
>
> For the existence of a file, you can do this:
>
> #!/bin/bash
> test -f /var/www/owncloud/config/config.php
> rc=$?
> echo "is_my_file_there=${rc}"
>
> That goes into /etc/facter/facts.d/ as an executable shell script and
> then in your manifest:
>
> if $::is_my_file_there != 0 {
> file { 'autoconfig.php':
> .....
> }
> }
>
>
> “Sometimes I think the surest sign that intelligent life exists
> elsewhere in the universe is that none of it has tried to contact
> us.” Bill Waterson (Calvin & Hobbes)
>
> ----- Original Message -----
> From: "John Naggets" <hostingnugg...@gmail.com>
> To: puppet-users@googlegroups.com
> Sent: Thursday, May 30, 2013 4:04:29 PM
> Subject: [Puppet Users] Run a File resource only if another file is
> missing
>
> Hi,
>
> I would like to run the File resource below:
>
> file { 'autoconfig.php':
> path => '/var/www/owncloud/config/autoconfig.php',
> ensure => file,
> owner => 'www-data',
> group => 'www-data',
> content => template("owncloud/autoconfig.php.erb"),
> }
>
> only when a specific file (in my
> case: /var/www/owncloud/config/config.php) is missing. Is this
> somehow possible? Couldn't find my case in the puppet
> documentation...
>
> Thanks!
> John
>
>
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