===============================
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/

Follow Glances on Twitter: `@nicolargo`_ or `@glances_system`_

Summary
=======

**Glances** is a cross-platform monitoring tool which aims to present a maximum
of information in a minimum of space through a curses or Web based interface.
It can adapt dynamically the displayed information depending on the user
interface size.

.. 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 (XMLRPC 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 news
plugins or exports modules.

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

- ``python 2.7,>=3.3`` (tested with version 2.7, 3.3, 3.4, 3.5)
- ``psutil>=2.0.0`` (better with latest version)
- ``setuptools``

Optional dependencies:

- ``batinfo`` (for battery monitoring support) [Linux-only]
- ``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-py`` (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)
- ``matplotlib`` (for graphical/chart support)
- ``netifaces`` (for the IP plugin)
- ``nvidia-ml-py`` (for the GPU plugin)
- ``pika`` (for the RabbitMQ/ActiveMQ export module)
- ``potsdb`` (for the OpenTSDB export module)
- ``py3sensors`` (for hardware monitoring support) [Linux-only]
- ``py-cpuinfo`` (for the Quicklook CPU info 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 plugin)
- ``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*

Since version 2.7, Glances no longer support Python 2.6. Please upgrade
to at least Python 2.7/3.3+ or downgrade to Glances 2.6.2 (latest version
with Python 2.6 support).

*Note for CentOS Linux 6 and 7 users*

Python 2.7, 3.3 and 3.4 are now available via SCLs. See:
https://lists.centos.org/pipermail/centos-announce/2015-December/021555.html.

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

Several method to test/install Glances on your system. Choose your weapon !

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

To install both dependencies and 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*: 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 are sure to have 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.

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

.. code-block:: console

    curl -o /tmp/optional-requirements.txt https://raw.githubusercontent.com/nicolargo/glances/master/optional-requirements.txt
    pip install -r /tmp/optional-requirements.txt

To upgrade Glances to the latest version:

.. code-block:: console

    pip install --upgrade glances
    curl -o /tmp/requirements.txt https://raw.githubusercontent.com/nicolargo/glances/master/requirements.txt
    pip install --upgrade /tmp/requirements.txt
    curl -o /tmp/optional-requirements.txt https://raw.githubusercontent.com/nicolargo/glances/master/optional-requirements.txt
    pip install --upgrade /tmp/optional-requirements.txt

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 will include the latest development HEAD version. You can use it to monitor your server and all your others containers !

Get the Glances container:

.. code-block:: console

    docker pull nicolargo/glances

Run the container in *console mode*:

.. code-block:: console

    docker run -v /var/run/docker.sock:/var/run/docker.sock:ro --pid 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
---------

At the moment, packages exist for the following GNU/Linux distributions:

- Arch Linux
- Debian
- Fedora/CentOS/RHEL
- Gentoo
- Slackware (SlackBuild)
- Ubuntu
- Void Linux

So you should be able to install it using your favorite package manager.
Be aware that the Glances version can not be the latest one using this method.

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 python
    $ pip 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 just:

.. code-block:: console

    $ pip install glances

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

.. code-block:: console

    pip install bottle requests zeroconf netifaces influxdb elasticsearch potsdb statsd pystache pysnmp pika py-cpuinfo bernhard cassandra scandir

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. For example,
on Debian/Ubuntu you need to install first the *python-dev* package.

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

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, ``InfluxDB``, ``Cassandra``, ``CouchDB``,
``OpenTSDB``, ``StatsD``, ``ElasticSearch``, ``RabbitMQ/ActiveMQ``, ``ZeroMQ``,
and  ``Riemann`` 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
=======

LGPL. See ``COPYING`` for more details.

.. _psutil: https://github.com/giampaolo/psutil
.. _glancesautoinstall: https://github.com/nicolargo/glancesautoinstall
.. _@nicolargo: https://twitter.com/nicolargo
.. _@glances_system: https://twitter.com/glances_system
.. _Python: https://www.python.org/getit/
.. _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
