164 lines
4.3 KiB
ReStructuredText
164 lines
4.3 KiB
ReStructuredText
..
|
|
Except where otherwise noted, this document is licensed under Creative
|
|
Commons Attribution 3.0 License. You can view the license at:
|
|
|
|
https://creativecommons.org/licenses/by/3.0/
|
|
|
|
=======================
|
|
Ways to install Watcher
|
|
=======================
|
|
|
|
This document describes some ways to install Watcher in order to use it.
|
|
If you are intending to develop on or with Watcher,
|
|
please read :doc:`../contributor/environment`.
|
|
|
|
Prerequisites
|
|
-------------
|
|
|
|
The source install instructions specifically avoid using platform specific
|
|
packages, instead using the source for the code and the Python Package Index
|
|
(PyPi_).
|
|
|
|
.. _PyPi: https://pypi.org/
|
|
|
|
It's expected that your system already has python2.7_, latest version of pip_,
|
|
and git_ available.
|
|
|
|
.. _python2.7: https://www.python.org
|
|
.. _pip: https://pip.pypa.io/en/latest/installing/
|
|
.. _git: https://git-scm.com/
|
|
|
|
Your system shall also have some additional system libraries:
|
|
|
|
On Ubuntu (tested on 16.04LTS):
|
|
|
|
.. code-block:: bash
|
|
|
|
$ sudo apt-get install python-dev libssl-dev libmysqlclient-dev libffi-dev
|
|
|
|
On Fedora-based distributions e.g., Fedora/RHEL/CentOS/Scientific Linux
|
|
(tested on CentOS 7.1):
|
|
|
|
.. code-block:: bash
|
|
|
|
$ sudo yum install gcc python-devel openssl-devel libffi-devel mysql-devel
|
|
|
|
|
|
Installing from Source
|
|
----------------------
|
|
|
|
Clone the Watcher repository:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ git clone https://opendev.org/openstack/watcher.git
|
|
$ cd watcher
|
|
|
|
Install the Watcher modules:
|
|
|
|
.. code-block:: bash
|
|
|
|
# python setup.py install
|
|
|
|
The following commands should be available on the command-line path:
|
|
|
|
* ``watcher-api`` the Watcher Web service used to handle RESTful requests
|
|
* ``watcher-decision-engine`` the Watcher Decision Engine used to build action
|
|
plans, according to optimization goals to achieve.
|
|
* ``watcher-applier`` the Watcher Applier module, used to apply action plan
|
|
* ``watcher-db-manage`` used to bootstrap Watcher data
|
|
|
|
You will find sample configuration files in ``etc/watcher``:
|
|
|
|
* ``watcher.conf.sample``
|
|
|
|
Install the Watcher modules dependencies:
|
|
|
|
.. code-block:: bash
|
|
|
|
# pip install -r requirements.txt
|
|
|
|
From here, refer to :doc:`../configuration/configuring` to declare Watcher
|
|
as a new service into Keystone and to configure its different modules.
|
|
Once configured, you should be able to run the Watcher services by issuing
|
|
these commands:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ watcher-api
|
|
$ watcher-decision-engine
|
|
$ watcher-applier
|
|
|
|
By default, this will show logging on the console from which it was started.
|
|
Once started, you can use the `Watcher Client`_ to play with Watcher service.
|
|
|
|
.. _`Watcher Client`: https://opendev.org/openstack/python-watcherclient
|
|
|
|
Installing from packages: PyPI
|
|
--------------------------------
|
|
|
|
Watcher package is available on PyPI repository. To install Watcher on your
|
|
system:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ sudo pip install python-watcher
|
|
|
|
The Watcher services along with its dependencies should then be automatically
|
|
installed on your system.
|
|
|
|
Once installed, you still need to declare Watcher as a new service into
|
|
Keystone and to configure its different modules, which you can find described
|
|
in :doc:`../configuration/configuring`.
|
|
|
|
|
|
Installing from packages: Debian (experimental)
|
|
-----------------------------------------------
|
|
|
|
Experimental Debian packages are available on `Debian repositories`_. The best
|
|
way to use them is to install them into a Docker_ container.
|
|
|
|
Here is single Dockerfile snippet you can use to run your Docker container:
|
|
|
|
.. code-block:: bash
|
|
|
|
FROM debian:experimental
|
|
MAINTAINER David TARDIVEL <david.tardivel@b-com.com>
|
|
|
|
RUN apt-get update
|
|
RUN apt-get dist-upgrade
|
|
RUN apt-get install vim net-tools
|
|
RUN apt-get install experimental watcher-api
|
|
|
|
CMD ["/usr/bin/watcher-api"]
|
|
|
|
Build your container from this Dockerfile:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ docker build -t watcher/api .
|
|
|
|
To run your container, execute this command:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ docker run -d -p 9322:9322 watcher/api
|
|
|
|
Check in your logs Watcher API is started
|
|
|
|
.. code-block:: bash
|
|
|
|
$ docker logs <container ID>
|
|
|
|
You can run similar container with Watcher Decision Engine (package
|
|
``watcher-decision-engine``) and with the Watcher Applier (package
|
|
``watcher-applier``).
|
|
|
|
.. _Docker: https://www.docker.com/
|
|
.. _`Debian repositories`: https://packages.debian.org/experimental/allpackages
|
|
|
|
|
|
|
|
|
|
|