160058b199
Pecan deployment and measurements page links are corrected Change-Id: Iaee9bfce9d86598277b5c2ba3788789960531472 Closes-Bug: #1488792
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67 lines
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Copyright 2013 New Dream Network, LLC (DreamHost)
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Licensed under the Apache License, Version 2.0 (the "License"); you may
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not use this file except in compliance with the License. You may obtain
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a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations
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under the License.
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===================================
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Installing the API behind mod_wsgi
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===================================
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Ceilometer comes with a few example files for configuring the API
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service to run behind Apache with ``mod_wsgi``.
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app.wsgi
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========
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The file ``ceilometer/api/app.wsgi`` sets up the V2 API WSGI
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application. The file is installed with the rest of the ceilometer
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application code, and should not need to be modified.
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etc/apache2/ceilometer
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======================
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The ``etc/apache2/ceilometer`` file contains example settings that
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work with a copy of ceilometer installed via devstack.
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.. literalinclude:: ../../../etc/apache2/ceilometer
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1. On deb-based systems copy or symlink the file to
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``/etc/apache2/sites-available``. For rpm-based systems the file will go in
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``/etc/httpd/conf.d``.
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2. Modify the ``WSGIDaemonProcess`` directive to set the ``user`` and
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``group`` values to a appropriate user on your server. In many
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installations ``ceilometer`` will be correct.
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3. Enable the ceilometer site. On deb-based systems::
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$ a2ensite ceilometer
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$ service apache2 reload
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On rpm-based systems::
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$ service httpd reload
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Limitation
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==========
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As Ceilometer is using Pecan and Pecan's DebugMiddleware doesn't support
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multiple processes, there is no way to set debug mode in the multiprocessing
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case. To allow multiple processes the DebugMiddleware may be turned off by
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setting ``pecan_debug`` to ``False`` in the ``api`` section of
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``ceilometer.conf``.
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For other WSGI setup you can refer to the `pecan deployment`_ documentation.
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.. _`pecan deployment`: http://pecan.readthedocs.org/en/latest/deployment.html
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