Hi Dan!
When you subscribe to another resource like subscribe =>
File['/etc/logrotate.d/syslog'], the key is that you're not actually
subscribing to the file on disk. You're subscribing to *another Puppet
resource*, of type File and with a title of '/etc/logrotate.d/syslog'. Any
time that Puppet makes changes to the resource, that notification will
trigger.
Here's a graphic that shows how the relationship works. References in the
Puppet code point to resource declarations in Puppet code, not to the
artifacts on the system that are managed by those resource declarations.
[image: reference_manifest.png]
This means that unless you're actually managing that file with Puppet code,
the relationship won't work.
On Tue, Oct 22, 2019 at 2:27 PM Dan Crisp <djc7...@gmail.com> wrote:
> Hi,
>
> I'm seeing the following error when running the agent on a server:
>
> Error: Could not retrieve catalog from remote server: Error 500 on SERVER:
> Server Error: Could not find resource 'File[/etc/logrotate.d/syslog]' in
> parameter 'subscribe' (file:
> /etc/puppetlabs/code/environments/production/modules/base/manifests/syslog.pp,
> line: 21) on node lhcsrvmtrrsl01.fixnetix.com
>
> I want the logrotate command to run every time there is a change to the
> /etc/logrotate.d/syslog file. Thought this could be achieved via the
> following:
>
> exec { 'LogRotate':
> path => '/usr/sbin',
> command => 'logrotate -vdf /etc/logrotate.d/syslog 2>/dev/null',
> subscribe => File['/etc/logrotate.d/syslog'],
> refreshonly => true,
> }
>
> I can't work out why the agent is complaining re Could not find resource
> 'File[/etc/logrotate.d/syslog]'
>
> # puppet resource file /etc/logrotate.d/syslog
> file { '/etc/logrotate.d/syslog':
> ensure => 'file',
> content => '{md5}e59f6816e9fcd21174501313720c660f',
> ctime => '2019-10-22 21:36:25 +0100',
> group => 0,
> mode => '0644',
> mtime => '2019-10-22 21:36:25 +0100',
> owner => 0,
> selrange => 's0',
> selrole => 'object_r',
> seltype => 'etc_t',
> seluser => 'system_u',
> type => 'file',
> }
>
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