Copy snakeoil certificate and key instead of symlinking

Since postgresql-9.1_9.1.16-0+deb7u1 on wheezy, postgresql can't read
snakeoil certificate as symlink anymore, so server does not restart.
This patch copies cert and key instead of symlinking so that it works
again.

Author: mcanevet

manifests/server/initdb.pp

@@ -83,19 +83,25 @@
       require   => File[$require_before_initdb],
     }
     # The package will take care of this for us the first time, but if we
-    # ever need to init a new db we need to make these links explicitly
+    # ever need to init a new db we need to copy these files explicitly
     if $::operatingsystem == 'Debian' or $::operatingsystem == 'Ubuntu' {
       if $::operatingsystemrelease =~ /^6/ or $::operatingsystemrelease =~ /^7/ or $::operatingsystemrelease =~ /^10\.04/ or $::operatingsystemrelease =~ /^12\.04/ {
         file { 'server.crt':
-          ensure  => link,
+          ensure  => file,
           path    => "${datadir}/server.crt",
-          target  => '/etc/ssl/certs/ssl-cert-snakeoil.pem',
+          source  => 'file:///etc/ssl/certs/ssl-cert-snakeoil.pem',
+          owner   => $::postgresql::server::user,
+          group   => $::postgresql::server::group,
+          mode    => '0644',
           require => Exec['postgresql_initdb'],
         }
         file { 'server.key':
-          ensure  => link,
+          ensure  => file,
           path    => "${datadir}/server.key",
-          target  => '/etc/ssl/private/ssl-cert-snakeoil.key',
+          source  => 'file:///etc/ssl/private/ssl-cert-snakeoil.key',
+          owner   => $::postgresql::server::user,
+          group   => $::postgresql::server::group,
+          mode    => '0600',
           require => Exec['postgresql_initdb'],
         }
       }