.. _installation:
============
Installation
============
.. contents::
   :depth: 3
Basic installation
==================
Step by step installation for Debian/Ubuntu with virtualenv. For Ubuntu, be sure
to have enable universe repository.
Install packages:
.. code:: sh
    $ sudo -H apt-get install \
           git build-essential libxslt-dev \
	   python-dev python-virtualenv python-babel \
	   zlib1g-dev libffi-dev libssl-dev
Install searx:
.. code:: sh
    cd /usr/local
    sudo -H git clone https://github.com/asciimoo/searx.git
    sudo -H useradd searx -d /usr/local/searx
    sudo -H chown searx:searx -R /usr/local/searx
Install dependencies in a virtualenv:
.. code:: sh
    cd /usr/local/searx
    sudo -H -u searx -i
.. code:: sh
    (searx)$ virtualenv searx-ve
    (searx)$ . ./searx-ve/bin/activate
    (searx)$ ./manage.sh update_packages
Configuration
==============
.. code:: sh
    sed -i -e "s/ultrasecretkey/`openssl rand -hex 16`/g" searx/settings.yml
Edit searx/settings.yml if necessary.
Check
=====
Start searx:
.. code:: sh
    python searx/webapp.py
Go to http://localhost:8888
If everything works fine, disable the debug option in settings.yml:
.. code:: sh
    sed -i -e "s/debug : True/debug : False/g" searx/settings.yml
At this point searx is not demonized ; uwsgi allows this.
You can exit the virtualenv and the searx user bash (enter exit command
twice).
uwsgi
=====
Install packages:
.. code:: sh
    sudo -H apt-get install \
         uwsgi uwsgi-plugin-python
Create the configuration file ``/etc/uwsgi/apps-available/searx.ini`` with this
content:
.. code:: ini
    [uwsgi]
    # Who will run the code
    uid = searx
    gid = searx
    # disable logging for privacy
    disable-logging = true
    # Number of workers (usually CPU count)
    workers = 4
    # The right granted on the created socket
    chmod-socket = 666
    # Plugin to use and interpretor config
    single-interpreter = true
    master = true
    plugin = python
    lazy-apps = true
    enable-threads = true
    # Module to import
    module = searx.webapp
    # Support running the module from a webserver subdirectory.
    route-run = fixpathinfo:
    # Virtualenv and python path
    virtualenv = /usr/local/searx/searx-ve/
    pythonpath = /usr/local/searx/
    chdir = /usr/local/searx/searx/
Activate the uwsgi application and restart:
.. code:: sh
    cd /etc/uwsgi/apps-enabled
    ln -s ../apps-available/searx.ini
    /etc/init.d/uwsgi restart
Web server
==========
with nginx
----------
If nginx is not installed (uwsgi will not work with the package
nginx-light):
.. code:: sh
    sudo -H apt-get install nginx
Hosted at /
~~~~~~~~~~~
Create the configuration file ``/etc/nginx/sites-available/searx`` with this
content:
.. code:: nginx
    server {
        listen 80;
        server_name searx.example.com;
        root /usr/local/searx/searx;
        location /static {
        }
        location / {
                include uwsgi_params;
                uwsgi_pass unix:/run/uwsgi/app/searx/socket;
        }
    }
Create a symlink to sites-enabled:
.. code:: sh
   sudo -H ln -s /etc/nginx/sites-available/searx /etc/nginx/sites-enabled/searx
Restart service:
.. code:: sh
    sudo -H service nginx restart
    sudo -H service uwsgi restart
from subdirectory URL (/searx)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Add this configuration in the server config file
``/etc/nginx/sites-enabled/default``:
.. code:: nginx
    location /searx/static {
            alias /usr/local/searx/searx/static;
    }
    location /searx {
            uwsgi_param SCRIPT_NAME /searx;
            include uwsgi_params;
            uwsgi_pass unix:/run/uwsgi/app/searx/socket;
    }
**OR** using reverse proxy (Please, note that reverse proxy advised to be used
in case of single-user or low-traffic instances.)
.. code:: nginx
    location /searx/static {
            alias /usr/local/searx/searx/static;
    }
    location /searx {
        proxy_pass http://127.0.0.1:8888;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;
        proxy_set_header X-Script-Name /searx;
        proxy_buffering off;
    }
Enable ``base_url`` in ``searx/settings.yml``
.. code:: yaml
    base_url : http://your.domain.tld/searx/
Restart service:
.. code:: sh
    sudo -H service nginx restart
    sudo -H service uwsgi restart
disable logs
^^^^^^^^^^^^
for better privacy you can disable nginx logs about searx.
how to proceed: below ``uwsgi_pass`` in ``/etc/nginx/sites-available/default``
add:
.. code:: nginx
    access_log /dev/null;
    error_log /dev/null;
Restart service:
.. code:: sh
    sudo -H service nginx restart
with apache
-----------
Add wsgi mod:
.. code:: sh
    sudo -H apt-get install libapache2-mod-uwsgi
    sudo -H a2enmod uwsgi
Add this configuration in the file ``/etc/apache2/apache2.conf``:
.. code:: apache
    
        Options FollowSymLinks Indexes
        SetHandler uwsgi-handler
        uWSGISocket /run/uwsgi/app/searx/socket
    
Note that if your instance of searx is not at the root, you should change
```` by the location of your instance, like ````.
Restart Apache:
.. code:: sh
    sudo -H /etc/init.d/apache2 restart
disable logs
~~~~~~~~~~~~
For better privacy you can disable Apache logs.
.. warning::
   You can only disable logs for the whole (virtual) server not for a specific
   path.
Go back to ``/etc/apache2/apache2.conf`` and above ```` add:
.. code:: apache
    CustomLog /dev/null combined
Restart Apache:
.. code:: sh
    sudo -H /etc/init.d/apache2 restart
How to update
=============
.. code:: sh
    cd /usr/local/searx
    sudo -H -u searx -i
.. code:: sh
    (searx)$ . ./searx-ve/bin/activate
    (searx)$ git stash
    (searx)$ git pull origin master
    (searx)$ git stash apply
    (searx)$ ./manage.sh update_packages
.. code:: sh
    sudo -H service uwsgi restart
Docker
======
Make sure you have installed Docker. For instance, you can deploy searx like this:
.. code:: sh
    docker pull wonderfall/searx
    docker run -d --name searx -p $PORT:8888 wonderfall/searx
Go to ``http://localhost:$PORT``.
See https://hub.docker.com/r/wonderfall/searx/ for more informations.  It's also
possible to build searx from the embedded Dockerfile.
.. code:: sh
   git clone https://github.com/asciimoo/searx.git
   cd searx
   docker build -t whatever/searx .
References
==========
* https://about.okhin.fr/posts/Searx/ with some additions
* How to: `Setup searx in a couple of hours with a free SSL certificate
  `__