docs: generic documentation from the installation scripts

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/admin/installation-searx.rst

@@ -0,0 +1,85 @@
+.. _installation basic:
+
+=========================
+Step by step installation
+=========================
+
+.. contents:: Contents
+   :depth: 2
+   :local:
+   :backlinks: entry
+
+Step by step installation with virtualenv.  For Ubuntu, be sure to have enable
+universe repository.
+
+Install packages
+================
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START distro-packages
+   :end-before: END distro-packages
+
+.. hint::
+
+   This installs also the packages needed by :ref:`searx uwsgi`
+
+Create user
+===========
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START create user
+   :end-before: END create user
+
+Start a interactive shell from new created user and clone searx:
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START clone searx
+   :end-before: END clone searx
+
+In the same shell create *virtualenv*:
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START create virtualenv
+   :end-before: END create virtualenv
+
+To install searx's dependencies, exit the searx *bash* session you opened above
+and restart a new.  Before install, first check if your *virualenv* was sourced
+from the login (*~/.profile*):
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START manage.sh update_packages
+   :end-before: END manage.sh update_packages
+
+.. tip::
+
+   Open a second terminal for the configuration tasks and left the ``(searx)$``
+   terminal open for the tasks below.
+
+
+Configuration
+==============
+
+Create a copy of the :origin:`searx/settings.yml` configuration file in system's
+*/etc* folder.  Configure like shown below -- replace ``searx@\$(uname -n)`` with
+a name of your choice -- *and/or* edit ``/etc/searx/settings.yml`` if necessary.
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START searx config
+   :end-before: END searx config
+
+
+Check
+=====
+
+To check your searx setup, optional enable debugging and start the *webapp*.
+Searx looks at the exported environment ``$SEARX_SETTINGS_PATH`` for a
+configuration file.
+
+.. include:: ../../build/docs/includes/searx.rst
+   :start-after: START check searx installation
+   :end-before: END check searx installation
+
+If everything works fine, hit ``[CTRL-C]`` to stop the *webapp* and disable the
+debug option in ``settings.yml``. You can now exit searx user bash (enter exit
+command twice).  At this point searx is not demonized; uwsgi allows this.
+