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OpenStack Monitoring as a Service

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monasca-api is a RESTful API server that is designed with a layered architecture.


The full API Specification can be found in docs/

Python Monasca API Implementation

To install the python api implementation, git clone the source and run the following command:

$ sudo python install

If it installs successfully, you will need to make changes to the following two files to reflect your system settings, especially where kafka server is located:


Once the configuration files are modified to match your environment, you can start up the server by following the following instructions.

To start the server, run the following command:

Running the server in foreground mode
$ gunicorn -k eventlet --worker-connections=2000 --backlog=1000 --paste /etc/monasca/api-config.ini

Running the server as daemons
$ gunicorn -k eventlet --worker-connections=2000 --backlog=1000 --paste /etc/monasca/api-config.ini -D

To check if the code follows python coding style, run the following command from the root directory of this project

$ tox -e pep8

To run all the unit test cases, run the following command from the root directory of this project

$ tox -e py27

Start the Server - for Apache

To start the server using Apache: create a modwsgi file, create a modwsgi configuration file, and enable the wsgi module in Apache.

The modwsgi configuration file may look something like this, and the site will need to be enabled:

Listen 8070

<VirtualHost *:8070>

    WSGIDaemonProcess monasca-api processes=4 threads=1 socket-timeout=120 user=mon-api group=monasca python-path=/usr/local/lib/python2.7/site-packages
    WSGIProcessGroup monasca-api
    WSGIApplicationGroup monasca-api
    WSGIScriptAlias / /usr/local/lib/python2.7/site-packages/monasca_api/api/wsgi/

    WSGIPassAuthorization On

    LogLevel info
    ErrorLog /var/log/monasca-api/wsgi.log
    CustomLog /var/log/monasca-api/wsgi-access.log combined

    <Directory /usr/local/lib/python2.7/site-packages/monasca_api>
      Require all granted

    SetEnv no-gzip 1


The wsgi file may look something like this:

from monasca_api.api import server

application = server.get_wsgi_app(config_base_path='/etc/monasca')

Java Implementation

Details on usage can be found here

WARNING: The Java implementation of Monasca API is DEPRECATED and will be removed in future release.


Copyright (c) 2014 Hewlett-Packard Development Company, L.P.

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

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.

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