Add vrrp Python plugin
diff --git a/collectd/files/plugin/collectd_vrrp.py b/collectd/files/plugin/collectd_vrrp.py
new file mode 100644
index 0000000..ae873ff
--- /dev/null
+++ b/collectd/files/plugin/collectd_vrrp.py
@@ -0,0 +1,89 @@
+#!/usr/bin/python
+# Copyright 2016 Mirantis, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import collectd
+
+import collectd_base as base
+
+from pyroute2 import IPRoute
+
+NAME = 'vrrp'
+
+
+class VrrpPlugin(base.Base):
+
+    def __init__(self, *args, **kwargs):
+        super(VrrpPlugin, self).__init__(*args, **kwargs)
+        self.plugin = NAME
+        self.ip_addresses = []
+        self.ipr = IPRoute()
+
+    def config_callback(self, conf):
+        """Parse the plugin configuration.
+
+        Example:
+
+        <Module "collectd_vrrp">
+            <IPAddress>
+                address "172.16.10.254"
+                label "Foo"
+            </IPAddress>
+            <IPAddress>
+                address "172.16.10.253"
+            </IPAddress>
+        </Module>
+        """
+        super(VrrpPlugin, self).config_callback(conf)
+
+        for node in conf.children:
+            if node.key == 'IPAddress':
+                item = {}
+                for child_node in node.children:
+                    if child_node.key not in ('address', 'label'):
+                        continue
+                    item[child_node.key] = child_node.values[0]
+                if 'address' not in item:
+                    self.logger.error("vrrp: Missing 'address' parameter")
+                self.ip_addresses.append(item)
+
+        if len(self.ip_addresses) == 0:
+            self.logger.error("vrrp: Missing 'IPAddress' parameter")
+
+    def itermetrics(self):
+        for ip_address in self.ip_addresses:
+            v = 1 if self.ipr.get_addr(address=ip_address['address']) else 0
+            data = {'values': v, 'meta': {'ip_address': ip_address['address']}}
+            if 'label' in ip_address:
+                data['meta']['label'] = ip_address['label']
+            yield data
+
+
+plugin = VrrpPlugin(collectd)
+
+
+def init_callback():
+    plugin.restore_sigchld()
+
+
+def config_callback(conf):
+    plugin.config_callback(conf)
+
+
+def read_callback():
+    plugin.read_callback()
+
+collectd.register_init(init_callback)
+collectd.register_config(config_callback)
+collectd.register_read(read_callback)