Possible to move/rename files?

[Jasmine Lognnes]

Hello =)

I would like to either replace "enabled=True" to "enabled=False" in a bunch of files or rename those files to end with "_false".

Right now I replace content is files with e.g.

 replace { 'dummy5':

    file => '/etc/xdg/user-dirs.conf',

    pattern => "enabled=True",

    replacement => "enable=False"

  }

but I don't like it a whole lot, as I have to fill in the dummy variable my self and make sure all are unique.

Is it possible to rename files with Puppet or is there a better way to replace content files?

Kind regards

Jasmine

[zerozer...@gmail.com]

On Monday, March 17, 2014 5:31:47 PM UTC+1, Jasmine Lognnes wrote:

 

Right now I replace content is files with e.g.

 replace { 'dummy5':

Er... I didn't even know a "replace" resource type existed. Where does it come from?

 

Is it possible to rename files with Puppet or is there a better way to replace content files?

There's no easy way to rename a file AFAIK.

You can use something like this but it's far from ideal (and OS dependent of course):

  exec { '/bin/mv /etc/xdg/user-dirs.conf /etc/xdg/user-dirs.conf_false':

    creates => '/etc/xdg/user-dirs.conf_false',

  }

  ->

  file { '/etc/xdg/user-dirs.conf':

    ensure => absent,

  }

Regarding modifying content, you can have a look at the augeas resource type. You need to have Augeas installed on the machine, but if the files to be modified have some standard format then you might be lucky because you can do your edits without much effort.

Some useful links:

http://docs.puppetlabs.com/references/3.stable/type.html#augeas

http://docs.puppetlabs.com/guides/augeas.html

http://doauto.wordpress.com/2013/06/22/how-to-change-a-file-using-puppet/

Marco

[Jasmine Lognnes]

 replace { 'dummy5':

Er... I didn't even know a "replace" resource type existed. Where does it come from?

I got it from

http://projects.puppetlabs.com/projects/1/wiki/simple_text_patterns

which now is dead, but can be read at

https://web.archive.org/web/20130318200928/http://projects.puppetlabs.com/projects/1/wiki/simple_text_patterns

I created manifests/classes/replace.pp and put in

# Replace a perl regexp with a string:

define replace($file, $pattern, $replacement) {

    $pattern_no_slashes = slash_escape($pattern)

    $replacement_no_slashes = slash_escape($replacement)

    exec { "/usr/bin/perl -pi -e 's/$pattern_no_slashes/$replacement_no_slashes/' '$file'":

        onlyif => "/usr/bin/perl -ne 'BEGIN { \$ret = 1; } \$ret = 0 if /$pattern_no_slashes/ && ! /$replacement_no_slashes/ ; END { exit \$ret; }' '$file'",

    }

}

There's no easy way to rename a file AFAIK.

You can use something like this but it's far from ideal (and OS dependent of course):

  exec { '/bin/mv /etc/xdg/user-dirs.conf /etc/xdg/user-dirs.conf_false':

    creates => '/etc/xdg/user-dirs.conf_false',

  }

  ->

  file { '/etc/xdg/user-dirs.conf':

    ensure => absent,

  }

Very interesting use of "->". Thanks =)

 

Regarding modifying content, you can have a look at the augeas resource type. You need to have Augeas installed on the machine, but if the files to be modified have some standard format then you might be lucky because you can do your edits without much effort.

Some useful links:

http://docs.puppetlabs.com/references/3.stable/type.html#augeas

http://docs.puppetlabs.com/guides/augeas.html

http://doauto.wordpress.com/2013/06/22/how-to-change-a-file-using-puppet/

This is great! Much better solution!! Thanks =)