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===============================
Glances - An eye on your system
===============================

.. image:: https://img.shields.io/pypi/v/glances.svg
    :target: https://pypi.python.org/pypi/Glances

.. image:: https://img.shields.io/github/stars/nicolargo/glances.svg
    :target: https://github.com/nicolargo/glances/
    :alt: Github stars

.. image:: https://img.shields.io/travis/nicolargo/glances/master.svg?maxAge=3600&label=Linux%20/%20BSD%20/%20macOS
    :target: https://travis-ci.org/nicolargo/glances
    :alt: Linux tests (Travis)

.. image:: https://img.shields.io/appveyor/ci/nicolargo/glances/master.svg?maxAge=3600&label=Windows
    :target: https://ci.appveyor.com/project/nicolargo/glances
    :alt: Windows tests (Appveyor)

.. image:: https://img.shields.io/scrutinizer/g/nicolargo/glances.svg
    :target: https://scrutinizer-ci.com/g/nicolargo/glances/

.. image:: https://app.fossa.io/api/projects/git%2Bgithub.com%2Fnicolargo%2Fglances.svg?type=shield
    :target: https://app.fossa.io/projects/git%2Bgithub.com%2Fnicolargo%2Fglances?ref=badge_shield

.. image:: https://img.shields.io/badge/Donate-PayPal-green.svg
    :target: https://www.paypal.me/nicolargo

Follow Glances on Twitter: `@nicolargo`_

Summary
=======

**Glances** is a cross-platform monitoring tool which aims to present a
large amount of monitoring information through a curses or Web
based interface. The information dynamically adapts depending on the
size of the user interface.

.. image:: https://raw.githubusercontent.com/nicolargo/glances/develop/docs/_static/glances-summary.png

It can also work in client/server mode. Remote monitoring could be done
via terminal, Web interface or API (XML-RPC and RESTful). Stats can also
be exported to files or external time/value databases.

.. image:: https://raw.githubusercontent.com/nicolargo/glances/develop/docs/_static/glances-responsive-webdesign.png

Glances is written in Python and uses libraries to grab information from
your system. It is based on an open architecture where developers can
add new plugins or exports modules.

Requirements
============

- ``python 2.7,>=3.4``
- ``psutil>=5.3.0`` (better with latest version)

Optional dependencies:

- ``bernhard`` (for the Riemann export module)
- ``bottle`` (for Web server mode)
- ``cassandra-driver`` (for the Cassandra export module)
- ``couchdb`` (for the CouchDB export module)
- ``docker`` (for the Docker monitoring support) [Linux-only]
- ``elasticsearch`` (for the Elastic Search export module)
- ``hddtemp`` (for HDD temperature monitoring support) [Linux-only]
- ``influxdb`` (for the InfluxDB export module)
- ``kafka-python`` (for the Kafka export module)
- ``netifaces`` (for the IP plugin)
- ``nvidia-ml-py3`` (for the GPU plugin)
- ``pika`` (for the RabbitMQ/ActiveMQ export module)
- ``potsdb`` (for the OpenTSDB export module)
- ``prometheus_client`` (for the Prometheus export module)
- ``py-cpuinfo`` (for the Quicklook CPU info module)
- ``pygal`` (for the graph export module)
- ``pymdstat`` (for RAID support) [Linux-only]
- ``pysnmp`` (for SNMP support)
- ``pystache`` (for the action script feature)
- ``pyzmq`` (for the ZeroMQ export module)
- ``requests`` (for the Ports, Cloud plugins and RESTful export module)
- ``scandir`` (for the Folders plugin) [Only for Python < 3.5]
- ``statsd`` (for the StatsD export module)
- ``wifi`` (for the wifi plugin) [Linux-only]
- ``zeroconf`` (for the autodiscover mode)

*Note for Python 2.6 users*

Glances no longer supports Python 2.6. Please upgrade
to a minimum Python version of 2.7/3.4+ or downgrade to Glances 2.6.2 (last version
with Python 2.6 support).

*Note for CentOS Linux 6 and 7 users*

Python 2.7 and 3.4 are now available via SCL repositories. See:
https://lists.centos.org/pipermail/centos-announce/2015-December/021555.html.

Installation
============

There are several methods to test/install Glances on your system. Choose your weapon!

Glances Auto Install script: the total way
------------------------------------------

To install both dependencies and the latest Glances production ready version
(aka *master* branch), just enter the following command line:

.. code-block:: console

    curl -L https://bit.ly/glances | /bin/bash

or

.. code-block:: console

    wget -O- https://bit.ly/glances | /bin/bash

*Note*: This is only supported on some GNU/Linux distributions. If you want to
support other distributions, please contribute to `glancesautoinstall`_.

PyPI: The simple way
--------------------

Glances is on ``PyPI``. By using PyPI, you will be using the latest
stable version.

To install, simply use ``pip``:

.. code-block:: console

    pip install glances

*Note*: Python headers are required to install `psutil`_. For example,
on Debian/Ubuntu you need to install first the *python-dev* package.
For Fedora/CentOS/RHEL install first *python-devel* package. For Windows,
just install psutil from the binary installation file.

*Note 2 (for the Wifi plugin)*: If you want to use the Wifi plugin, you need
to install the *wireless-tools* package on your system.

You can also install the following libraries in order to use optional
features (like the Web interface, exports modules...):

.. code-block:: console

    pip install 'glances[action,browser,cloud,cpuinfo,chart,docker,export,folders,gpu,ip,raid,snmp,web,wifi]'

To upgrade Glances to the latest version:

.. code-block:: console

    pip install --upgrade glances
    pip install --upgrade glances[...]

If you need to install Glances in a specific user location, use:

.. code-block:: console

    export PYTHONUSERBASE=~/mylocalpath
    pip install --user glances

Docker: the funny way
---------------------

A Glances container is available. It includes the latest development
HEAD version. You can use it to monitor your server and all your other
containers!

Get the Glances container:

.. code-block:: console

    docker pull nicolargo/glances

Run the container in *console mode*:

.. code-block:: console

    docker run --rm -v /var/run/docker.sock:/var/run/docker.sock:ro --pid host --network host -it docker.io/nicolargo/glances

Additionally, if you want to use your own glances.conf file, you can
create your own Dockerfile:

.. code-block:: console

    FROM nicolargo/glances
    COPY glances.conf /glances/conf/glances.conf
    CMD python -m glances -C /glances/conf/glances.conf $GLANCES_OPT

Alternatively, you can specify something along the same lines with
docker run options:

.. code-block:: console

    docker run -v ./glances.conf:/glances/conf/glances.conf -v /var/run/docker.sock:/var/run/docker.sock:ro --pid host -it docker.io/nicolargo/glances

Where ./glances.conf is a local directory containing your glances.conf file.

Run the container in *Web server mode* (notice the `GLANCES_OPT` environment
variable setting parameters for the glances startup command):

.. code-block:: console

    docker run -d --restart="always" -p 61208-61209:61208-61209 -e GLANCES_OPT="-w" -v /var/run/docker.sock:/var/run/docker.sock:ro --pid host docker.io/nicolargo/glances

GNU/Linux
---------

`Glances` is available on many Linux distributions, so you should be
able to install it using your favorite package manager. Be aware that
when you use this method the operating system package for `Glances`
may not be the latest version.

FreeBSD
-------

To install the binary package:

.. code-block:: console

    # pkg install py27-glances

To install Glances from ports:

.. code-block:: console

    # cd /usr/ports/sysutils/py-glances/
    # make install clean

macOS
-----

macOS users can install Glances using ``Homebrew`` or ``MacPorts``.

Homebrew
````````

.. code-block:: console

    $ brew install glances

MacPorts
````````

.. code-block:: console

    $ sudo port install glances

Windows
-------

Install `Python`_ for Windows (Python 2.7.9+ and 3.4+ ship with pip) and
then run the following command:

.. code-block:: console

    $ pip install glances

Alternatively, you could clone the repository and install with the following command.

.. code-block:: console

    $ git clone https://github.com/nicolargo/glances.git
    $ cd glances
    $ python setup.py install


Android
-------

You need a rooted device and the `Termux`_ application (available on the
Google Play Store).

Start Termux on your device and enter:

.. code-block:: console

    $ apt update
    $ apt upgrade
    $ apt install clang python python-dev
    $ pip install bottle
    $ pip install glances

And start Glances:

.. code-block:: console

    $ glances

You can also run Glances in server mode (-s or -w) in order to remotely
monitor your Android device.

Source
------

To install Glances from source:

.. code-block:: console

    $ wget https://github.com/nicolargo/glances/archive/vX.Y.tar.gz -O - | tar xz
    $ cd glances-*
    # python setup.py install

*Note*: Python headers are required to install psutil.

Chef
----

An awesome ``Chef`` cookbook is available to monitor your infrastructure:
https://supermarket.chef.io/cookbooks/glances (thanks to Antoine Rouyer)

Puppet
------

You can install Glances using ``Puppet``: https://github.com/rverchere/puppet-glances

Ansible
-------

A Glances ``Ansible`` role is available: https://galaxy.ansible.com/zaxos/glances-ansible-role/

Usage
=====

For the standalone mode, just run:

.. code-block:: console

    $ glances

For the Web server mode, run:

.. code-block:: console

    $ glances -w

and enter the URL ``http://<ip>:61208`` in your favorite web browser.

For the client/server mode, run:

.. code-block:: console

    $ glances -s

on the server side and run:

.. code-block:: console

    $ glances -c <ip>

on the client one.

You can also detect and display all Glances servers available on your
network or defined in the configuration file:

.. code-block:: console

    $ glances --browser

and RTFM, always.

Documentation
=============

For complete documentation have a look at the readthedocs_ website.

If you have any question (after RTFM!), please post it on the official Q&A `forum`_.

Gateway to other services
=========================

Glances can export stats to: ``CSV`` file, ``JSON`` file, ``InfluxDB``, ``Cassandra``, ``CouchDB``,
``OpenTSDB``, ``Prometheus``, ``StatsD``, ``ElasticSearch``, ``RabbitMQ/ActiveMQ``,
``ZeroMQ``, ``Kafka``, ``Riemann`` and ``RESTful`` server.

How to contribute ?
===================

If you want to contribute to the Glances project, read this `wiki`_ page.

There is also a chat dedicated to the Glances developers:

.. image:: https://badges.gitter.im/Join%20Chat.svg
        :target: https://gitter.im/nicolargo/glances?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge

Author
======

Nicolas Hennion (@nicolargo) <nicolas@nicolargo.com>

License
=======

LGPLv3. See ``COPYING`` for more details.

.. _psutil: https://github.com/giampaolo/psutil
.. _glancesautoinstall: https://github.com/nicolargo/glancesautoinstall
.. _@nicolargo: https://twitter.com/nicolargo
.. _Python: https://www.python.org/getit/
.. _Termux: https://play.google.com/store/apps/details?id=com.termux
.. _readthedocs: https://glances.readthedocs.io/
.. _forum: https://groups.google.com/forum/?hl=en#!forum/glances-users
.. _wiki: https://github.com/nicolargo/glances/wiki/How-to-contribute-to-Glances-%3F