Add test data generator via oslo messaging

This script is helpful for emulate real workflow.
Generate and send sample batches with different resources and
configurable counter_name.

Change-Id: I3ab6472c99abfe28e8c200ada2da91e97abed1d2

tools/make_test_data.py

@@ -23,7 +23,8 @@ Usage:
 Generate testing data for e.g. for default time span
 
 source .tox/py27/bin/activate
-./tools/make_test_data.py --user 1 --project 1 1 cpu_util 20
+./tools/make_test_data.py --user 1 --project 1 --resource 1 --counter cpu_util
+--volume 20
 """
 from __future__ import print_function
 
@@ -32,6 +33,7 @@ import datetime
 import logging
 import random
 import sys
+import uuid
 
 from oslo.config import cfg
 from oslo.utils import timeutils
@@ -41,10 +43,10 @@ from ceilometer import sample
 from ceilometer import storage
 
 
-def make_test_data(conn, name, meter_type, unit, volume, random_min,
+def make_test_data(name, meter_type, unit, volume, random_min,
                    random_max, user_id, project_id, resource_id, start,
-                   end, interval, resource_metadata={}, source='artificial',):
+                   end, interval, resource_metadata=None, source='artificial'):
-
+    resource_metadata = resource_metadata or {}
     # Compute start and end timestamps for the new data.
     if isinstance(start, datetime.datetime):
         timestamp = start
@@ -83,7 +85,8 @@ def make_test_data(conn, name, meter_type, unit, volume, random_min,
         data = utils.meter_message_from_counter(
             c,
             cfg.CONF.publisher.metering_secret)
-        conn.record_metering_data(data)
+
+        yield data
         n += 1
         timestamp = timestamp + increment
 
@@ -96,9 +99,12 @@ def make_test_data(conn, name, meter_type, unit, volume, random_min,
     print('Added %d new events for meter %s.' % (n, name))
 
 
-def main():
+def record_test_data(conn, *args, **kwargs):
-    cfg.CONF([], project='ceilometer')
+    for data in make_test_data(*args, **kwargs):
+        conn.record_metering_data(data)
 
+
+def get_parser():
     parser = argparse.ArgumentParser(
         description='generate metering data',
     )
@@ -116,6 +122,7 @@ def main():
     )
     parser.add_argument(
         '--end',
+        type=int,
         default=2,
         help='Number of days to be stepped forward from now or date in the '
              'future ("YYYY-MM-DDTHH:MM:SS" format) to define timestamps end '
@@ -125,6 +132,7 @@ def main():
         '--type',
         choices=('gauge', 'cumulative'),
         default='gauge',
+        dest='meter_type',
         help='Counter type.',
     )
     parser.add_argument(
@@ -134,10 +142,12 @@ def main():
     )
     parser.add_argument(
         '--project',
+        dest='project_id',
         help='Project id of owner.',
     )
     parser.add_argument(
         '--user',
+        dest='user_id',
         help='User id of owner.',
     )
     parser.add_argument(
@@ -153,20 +163,30 @@ def main():
         default=0,
     )
     parser.add_argument(
-        'resource',
+        '--resource',
+        dest='resource_id',
+        default=str(uuid.uuid4()),
         help='The resource id for the meter data.',
     )
     parser.add_argument(
-        'counter',
+        '--counter',
+        default='instance',
+        dest='name',
         help='The counter name for the meter data.',
     )
     parser.add_argument(
-        'volume',
+        '--volume',
         help='The amount to attach to the meter.',
         type=int,
         default=1,
     )
-    args = parser.parse_args()
+    return parser
+
+
+def main():
+    cfg.CONF([], project='ceilometer')
+
+    args = get_parser().parse_args()
 
     # Set up logging to use the console
     console = logging.StreamHandler(sys.stderr)
@@ -181,11 +201,11 @@ def main():
     conn = storage.get_connection_from_config(cfg.CONF)
 
     # Find the user and/or project for a real resource
-    if not (args.user or args.project):
+    if not (args.user_id or args.project_id):
         for r in conn.get_resources():
-            if r.resource_id == args.resource:
+            if r.resource_id == args.resource_id:
-                args.user = r.user_id
+                args.user_id = r.user_id
-                args.project = r.project_id
+                args.project_id = r.project_id
                 break
 
     # Compute the correct time span
@@ -208,24 +228,12 @@ def main():
             end = datetime.datetime.strptime(args.end, format)
         except ValueError:
             raise
-
+    args.start = start
-    make_test_data(conn=conn,
+    args.end = end
-                   name=args.counter,
+    record_test_data(conn=conn, **args.__dict__)
-                   meter_type=args.type,
-                   unit=args.unit,
-                   volume=args.volume,
-                   random_min=args.random_min,
-                   random_max=args.random_max,
-                   user_id=args.user,
-                   project_id=args.project,
-                   resource_id=args.resource,
-                   start=start,
-                   end=end,
-                   interval=args.interval,
-                   resource_metadata={},
-                   source='artificial',)
 
     return 0
 
+
 if __name__ == '__main__':
     main()

tools/send_test_data.py

@@ -0,0 +1,130 @@
+# 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.
+
+"""Command line tool for sending test data for Ceilometer via oslo.messaging.
+
+Usage:
+
+Send messages with samples generated by make_test_data
+
+source .tox/py27/bin/activate
+./tools/send_test_data.py --count 1000 --resources_count 10 --topic metering
+"""
+import argparse
+import datetime
+import json
+import random
+import uuid
+
+import make_test_data
+from oslo_context import context
+
+from ceilometer import messaging
+from ceilometer import service
+
+
+def send_batch(rpc_client, topic, batch):
+    rpc_client.prepare(topic=topic).cast(context.RequestContext(),
+                                         'record_metering_data', data=batch)
+
+
+def get_rpc_client(config_file):
+    service.prepare_service(argv=['/', '--config-file', config_file])
+    transport = messaging.get_transport()
+    rpc_client = messaging.get_rpc_client(transport, version='1.0')
+    return rpc_client
+
+
+def generate_data(rpc_client, make_data_args, samples_count,
+                  batch_size, resources_count, topic):
+    make_data_args.interval = 1
+    make_data_args.start = (datetime.datetime.utcnow() -
+                            datetime.timedelta(minutes=samples_count))
+    make_data_args.end = datetime.datetime.utcnow()
+
+    make_data_args.resource_id = None
+    resources_list = [str(uuid.uuid4())
+                      for _ in xrange(resources_count)]
+    resource_samples = {resource: 0 for resource in resources_list}
+    batch = []
+    count = 0
+    for sample in make_test_data.make_test_data(**make_data_args.__dict__):
+        count += 1
+        resource = resources_list[random.randint(0, len(resources_list) - 1)]
+        resource_samples[resource] += 1
+        sample['resource_id'] = resource
+        batch.append(sample)
+        if len(batch) == batch_size:
+            send_batch(rpc_client, topic, batch)
+            batch = []
+        if count == samples_count:
+            send_batch(rpc_client, topic, batch)
+            return resource_samples
+    send_batch(rpc_client, topic, batch)
+    return resource_samples
+
+
+def get_parser():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        '--batch-size',
+        dest='batch_size',
+        type=int,
+        default=100
+    )
+    parser.add_argument(
+        '--config-file',
+        default='/etc/ceilometer/ceilometer.conf'
+    )
+    parser.add_argument(
+        '--topic',
+        default='perfmetering'
+    )
+    parser.add_argument(
+        '--samples-count',
+        dest='samples_count',
+        type=int,
+        default=1000
+    )
+    parser.add_argument(
+        '--resources-count',
+        dest='resources_count',
+        type=int,
+        default=100
+    )
+    parser.add_argument(
+        '--result-directory',
+        dest='result_dir',
+        default='/tmp'
+    )
+    return parser
+
+
+def main():
+    args = get_parser().parse_known_args()[0]
+    make_data_args = make_test_data.get_parser().parse_known_args()[0]
+    rpc_client = get_rpc_client(args.config_file)
+    result_dir = args.result_dir
+    del args.config_file
+    del args.result_dir
+
+    resource_writes = generate_data(rpc_client, make_data_args,
+                                    **args.__dict__)
+    result_file = "%s/sample-by-resource-%s" % (result_dir,
+                                                random.getrandbits(32))
+    with open(result_file, 'w') as f:
+        f.write(json.dumps(resource_writes))
+    return result_file
+
+
+if __name__ == '__main__':
+    main()