puppet chown/chmod against files under a directory in batch - puppet

Question

In puppet, you can chown/chmod a single file by doing:
file {
'/var/log/mylog/test.log':
ensure => 'present',
mode => '0644',
owner => 'me';
}
Two questions on this:
ensure=>'present' is gonna make sure '/var/log/mylog/test.log' exists, if it doesn't it creates it. Is there any way I can make it do actions if file exists, if file doesn't exist, don't bother to create/delete it, just ignore it and carry on.
Let's say I have 3 files under /var/log/mylog/, I want to chown/chmod against them all in a batch instead of having 3 file resource sections in my puppet code. Can I do something like below(of coz, the code below doesn't exist, it's in my dream now ^_^ ):
files {
'/var/log/mylog/*.log':
ensure => 'present',
mode => '0644',
owner => 'me';
}

Answer 1

If you want to specify to take a given action if file exists, if file doesn't exist etc. you have no choice (to my knownledge) currently than to use the exec resource with creates + onlyif or unless directives.
You could use for instance (see reference doc)
exec { "touch /var/log/mylog/test.log":
path => "/usr/bin:/usr/sbin:/bin",
user => "${yourmodule::params::user}",
group => "${yourmodule::params::group}",
creates => "/var/log/mylog/test.log",
unless => "test -f /var/log/mylog/test.log"
}
file { '/var/log/mylog/test.log':
ensure => 'present',
mode => "${${yourmodule::params::mode}",
owner => "${yourmodule::params::user}",
group => "${yourmodule::params::group}",
require => Exec["touch /var/log/mylog/test.log"]
}
No. Again, you'll have to use an execresource.