3. Installation
===============

CGRateS can be installed via packages as well as Go automated source install.
We recommend using source installs for advanced users familiar with Go programming and packages for users not willing to be involved in the code building process.

3.1. Using packages
-------------------

3.1.1. Debian 
~~~~~~~~~~~~~

This is for the moment the only packaged and the most recommended to use method to install CGRateS.

On the server you want to install CGRateS, simply execute the following commands:

::

   wget http://www.cgrates.org/tmp_pkg/cgrates_0.9.1~rc8_amd64.deb
   dpkg -i cgrates_0.9.1~rc8_amd64.deb

Once the installation is completed, one should perform the :ref:`post-install` section in order to have the CGRateS properly set and ready to run.
After *post-install* actions are performed, CGRateS will be configured in **/etc/cgrates/cgrates.json** and enabled in **/etc/default/cgrates**.

3.2. Using source
-----------------

For developing CGRateS and switching between its versions, we are using the **new go mods feature** introduced in go 1.13.

3.2.1 Install GO Lang
~~~~~~~~~~~~~~~~~~~~~

First we have to setup the GO Lang to our OS. Feel free to download 
the latest GO binary release from https://golang.org/dl/
In this Tutorial we are going to install Go 1.13

::

   rm -rf /usr/local/go
   cd /tmp
   wget https://dl.google.com/go/go1.13.1.linux-amd64.tar.gz
   sudo tar -xvf go1.13.1.linux-amd64.tar.gz -C /usr/local/
   export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin

3.2.2 Build CGRateS from Source
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Configure the project with the following commands:

::

   go get github.com/cgrates/cgrates
   cd $GOPATH/src/github.com/cgrates/cgrates
   ./build.sh


.. _post-install:

3.2.3 Create Debian / Ubuntu Packages from Source
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

After compiling the source code you are ready to create the .deb packages
for your Debian like OS. But First lets install some dependencies. 

::

   sudo apt-get install build-essential fakeroot dh-systemd

Finally we are ready to create the system package. Before creation we make
sure that we delete the old one first.

::

   cd $GOPATH/src/github.com/cgrates/cgrates/packages
   rm -rf $GOPATH/src/github.com/cgrates/*.deb
   make deb

After some time and maybe some console warnings, your CGRateS package will be ready.

3.2.4 Install Custom Debian / Ubuntu Package
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

::

   cd $GOPATH/src/github.com/cgrates
   sudo dpkg -i cgrates_*.deb

3.3. Post-install
-----------------

3.3.1. Database setup
~~~~~~~~~~~~~~~~~~~~~

For its operation CGRateS uses **one or more** database types, depending on its nature, install and configuration being further necessary.

At present we support the following databases:

- `Redis`_
Can be used as ``data_db`` .
Optimized for real-time information access.
Once installed there should be no special requirements in terms of setup since no schema is necessary.

- `MySQL`_
Can be used as ``stor_db`` .
Optimized for CDR archiving and offline Tariff Plan versioning.
Once MySQL is installed, CGRateS database needs to be set-up out of provided scripts. (example for the paths set-up by debian package)

::

   cd /usr/share/cgrates/storage/mysql/
   ./setup_cgr_db.sh root CGRateS.org localhost

- `PostgreSQL`_
Can be used as ``stor_db`` .
Optimized for CDR archiving and offline Tariff Plan versioning.
Once PostgreSQL is installed, CGRateS database needs to be set-up out of provided scripts (example for the paths set-up by debian package)

::

   cd /usr/share/cgrates/storage/postgres/
   ./setup_cgr_db.sh

- `MongoDB`_
Can be used as ``data_db`` - ``stor_db`` .
It is the first database that can be used to store all kinds of data stored from CGRateS from accounts, tariff plans to cdrs and logs.
This is provided as an alternative to Redis and/or MySQL/PostgreSQL and right now there are NO plans to drop support for any of them soon.

Once MongoDB is installed, CGRateS database needs to be set-up out of provided scripts (example for the paths set-up by debian package)

::

   cd /usr/share/cgrates/storage/mongo/
   ./setup_cgr_db.sh

.. _Redis: http://redis.io
.. _MySQL: http://www.mysql.org
.. _PostgreSQL: http://www.postgresql.org
.. _MongoDB: http://www.mongodb.org

3.3.2 Set versions data
~~~~~~~~~~~~~~~~~~~~~~~
Once database setup is completed, we need to write the versions data. To do this, run migrator tool with the parameters specific to your database. 

Sample usage for MySQL: 
::

   cgr-migrator -stordb_passwd="CGRateS.org" -exec="*set_versions"


3.3.3.Git
~~~~~~~~~

The **historys** (History Service) component will use `Git`_ to archive *tariff plan changes* in a local repository,
hence `Git`_ installation is necessary if you want to use this service.

.. _Git: http://git-scm.com
