Add Docker plugin
Change-Id: Ie6859fade90db3fe528ae8078c79c8be4c3ebcd7
diff --git a/collectd/files/plugin/collectd_docker_info.py b/collectd/files/plugin/collectd_docker_info.py
new file mode 100644
index 0000000..e0589f1
--- /dev/null
+++ b/collectd/files/plugin/collectd_docker_info.py
@@ -0,0 +1,85 @@
+#!/usr/bin/python
+# Copyright 2017 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.
+
+if __name__ == '__main__':
+ import collectd_fake as collectd
+else:
+ import collectd
+import json
+
+import collectd_base as base
+
+NAME = 'docker'
+DOCKER_BINARY = '/usr/bin/docker'
+INTERVAL = 60
+
+
+class DockerInfoPlugin(base.Base):
+
+ def __init__(self, *args, **kwargs):
+ super(DockerInfoPlugin, self).__init__(*args, **kwargs)
+ self.plugin = NAME
+
+ def itermetrics(self):
+ cmd = [DOCKER_BINARY, 'info', '-f', "{{ json .}}"]
+ (retcode, out, err) = self.execute(cmd, shell=False, log_error=True)
+ if retcode != 0:
+ raise base.CheckException("{} : {}".format(DOCKER_BINARY, err))
+ try:
+ infos = json.loads(out)
+ except ValueError as e:
+ raise base.CheckException("{}: document: '{}'".format(e, out))
+ else:
+ yield {'values': infos.get('Containers', 0),
+ 'plugin_instance': 'containers_total',
+ }
+ yield {'values': infos.get('ContainersPaused', 0),
+ 'plugin_instance': 'containers',
+ 'meta': {'status': 'paused'},
+ }
+ yield {'values': infos.get('ContainersRunning', 0),
+ 'plugin_instance': 'containers',
+ 'meta': {'status': 'running'},
+ }
+ yield {'values': infos.get('ContainersStopped', 0),
+ 'plugin_instance': 'containers',
+ 'meta': {'status': 'stopped'},
+ }
+ yield {'values': infos.get('Images', 0),
+ 'plugin_instance': 'images',
+ }
+
+plugin = DockerInfoPlugin(collectd)
+
+
+def init_callback():
+ plugin.restore_sigchld()
+
+
+def config_callback(conf):
+ plugin.config_callback(conf)
+
+
+def read_callback():
+ plugin.read_callback()
+
+if __name__ == '__main__':
+ collectd.load_configuration(plugin)
+ plugin.read_callback()
+ plugin.shutdown_callback()
+else:
+ collectd.register_init(init_callback)
+ collectd.register_config(config_callback)
+ collectd.register_read(read_callback, INTERVAL)