service subscription to a concat managed file

[opticpow]

Hi All,

I'm using the ripienaar/concat module to manage a number of configuration files. Is it possible for a service to subscribe to the managed file so that when another module inserts a fragment, the service is restarted?

Below is an example of what I'm trying to do. This fails with the  /etc/sysctl.conf not being a valid resource reference for the subscription.

Thanks, Wayne.

# Class to manage /etc/sysctl.conf file
# Wayne Ingram
# 26/08/2013
#
class sysctl {
   $config = "/etc/sysctl.conf"

    service {
        'boot.sysctl':
            enable     => true,
            subscribe  => $config;
    }

    concat{
        $config:
            owner => root,
            group => root,
            mode  => '0444';
    }

    concat::fragment{
       "sysctl_header":
           target  => $config,
           source  => 'puppet:///modules/sysctl/header',
           order   => 01;

        "sysctl_body":
            target  => $config,
            source  => 'puppet:///modules/sysctl/standard',
            order   => 02;

        "sysctl_seperator":
            target  => $config,
            content => "#\n#\n#Below are managed by the sysctl puppet class\n#\n",
            order   => 03;

        "sysctl_footer":
            target  => $config,
            content => "#\n# End of puppet managed config\n#\n",
            order   => 99
   }

    define register($value,$comment="",$order=50) {

        concat::fragment{
            "services_fragment_${name}":
                target  => $sysctl::config,
                content => "${name} = ${value} \t\t# ${comment} [${order}]\n",
                order   => $order;
        }
    }
}

[Dan White]

It should be (I think)

subscribe => File[$config]

But then I use this for my sysctl: https://forge.puppetlabs.com/fiddyspence/sysctl

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[opticpow]

Hi Ygor, of course a silly miss by me. Thanks for the heads up on the module, I'll check it out.

Cheers,

Wayne.

[Gavin Williams]

opticpow

An alternative may be to use 'notify' rather than 'subscribe'.
Would require your service to become 'refreshonly => true'...

Cheers
Gavin

[jcbollinger]

On Monday, August 26, 2013 4:24:29 PM UTC-5, Ygor wrote:

It should be (I think)

subscribe => File[$config]

Were it me, I would at least attempt to use

subscribe => Concat[$config]

instead, since that refers to the resource you're actually declaring.  IIRC, the existence of a resource File[$config] is an implementation detail of the Concat module, and it is poor practice to depend on implementation details.


John