added generic fluentd::config::file resource

this is used to create config files for sources, matches and filters.

manifests/config/file.pp

@@ -0,0 +1,31 @@
+# Configure a fluentd config file
+# e.g. source, match etc.
+#
+define fluentd::config::file (
+  $ensure   = present,
+  $priority = 50,
+  $content,
+) {
+
+  $base_name   = "${title}.conf"
+  $config_name = "${priority}-${base_name}"
+  $base_path   = "/etc/td-agent/conf.d"
+  $config_path = "${base_path}/${config_name}"
+
+  # clean up to ensure priority changes take effect
+  exec { "apply priority change for ${base_name}":
+    command => "rm ${base_path}/*-${base_name}",
+    onlyif => "ls ${base_path}/*-${base_name} | grep -v ${config_name}",
+    before  => File[$config_path],
+    notify  => Class['fluentd::service'],
+  }
+
+  file { $config_path:
+    ensure  => $ensure,
+    content => $content,
+    owner   => 'td-agent',
+    group   => 'td-agent',
+    mode    => '0644',
+    notify  => Class['fluentd::service'],
+  }
+}