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3.1 KiB
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111 lines
3.1 KiB
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..
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Except where otherwise noted, this document is licensed under Creative
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Commons Attribution 3.0 License. You can view the license at:
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https://creativecommons.org/licenses/by/3.0/
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==================
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Installing Watcher
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==================
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This document describes how to install Watcher in order to use it. If you are
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intending to develop on or with Watcher, please read :doc:`../dev/environment`.
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Prerequisites
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-------------
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The source install instructions specifically avoid using platform specific
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packages, instead using the source for the code and the Python Package Index
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(PyPi_).
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.. _PyPi: http://pypi.python.org/pypi
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It's expected that your system already has python2.7_, latest version of pip_,
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and git_ available.
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.. _python2.7: http://www.python.org
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.. _pip: http://www.pip-installer.org/en/latest/installing.html
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.. _git: http://git-scm.com/
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Your system shall also have some additional system libraries:
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On Ubuntu (tested on 14.04LTS):
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.. code-block:: bash
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$ sudo apt-get install python-dev libssl-dev libmysqlclient-dev libffi-dev
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On Fedora-based distributions e.g., Fedora/RHEL/CentOS/Scientific Linux
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(tested on CentOS 7.1):
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.. code-block:: bash
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$ sudo yum install gcc python-devel openssl-devel libffi-devel mysql-devel
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Installing from Source
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----------------------
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Clone the Watcher repository:
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.. code-block:: bash
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$ git clone https://git.openstack.org/openstack/watcher.git
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$ cd watcher
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Install the Watcher modules:
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.. code-block:: bash
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# python setup.py install
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The following commands should be available on the command-line path:
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* ``watcher-api`` the Watcher Web service used to handle RESTful requests
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* ``watcher-decision-engine`` the Watcher Decision Engine used to build action
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plans, according to optimization goals to achieve.
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* ``watcher-applier`` the Watcher Applier module, used to apply action plan
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* ``watcher-db-manage`` used to bootstrap Watcher data
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You will find sample configuration files in ``etc/watcher``:
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* ``watcher.conf.sample``
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Install the Watcher modules dependencies:
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.. code-block:: bash
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# pip install -r requirements.txt
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From here, refer to :doc:`configuration` to declare Watcher as a new service
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into Keystone and to configure its different modules. Once configured, you
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should be able to run the Watcher services by issuing these commands:
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.. code-block:: bash
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$ watcher-api
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$ watcher-decision-engine
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$ watcher-applier
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By default, this will show logging on the console from which it was started.
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Once started, you can use the `Watcher Client`_ to play with Watcher service.
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.. _`Watcher Client`: https://git.openstack.org/cgit/openstack/python-watcherclient
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Installing from packages: PyPI
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--------------------------------
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Watcher package is available on PyPI repository. To install Watcher on your
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system:
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.. code-block:: bash
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$ sudo pip install python-watcher
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The Watcher services along with its dependencies should then be automatically
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installed on your system.
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Once installed, you still need to declare Watcher as a new service into
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Keystone and to configure its different modules, which you can find described
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in :doc:`configuration`.
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