====== ralph ======

  * [[Python]]
  * [[Ubuntu]]

Note that installing the ''.deb'' file for Ralph will take a long time (15+ mins on my dual-core VirtualBox image).

Create a ''ralph'' user on the system:

<code>
useradd -m -s /bin/bash ralph
</code>

Create a MySQL user:

<code>
CREATE DATABASE ralph;
GRANT ALL PRIVILEGES ON ralph.* TO 'ralph'@'localhost' IDENTIFIED BY 'o-hai-ralph' WITH GRANT OPTION;
</code>

Update ''.bashrc'' to source virtualenv settings:

<code>
source /opt/ralph/ralph-core/bin/activate
</code>

Set up migration and database:

<code>
ralph migrate
ralph sitetree_resync_apps
</code>

Changes to runtime site can go in ''/opt/ralph/ralph-core/lib/python3.4/site-packages/ralph/settings/prod.py''

By default, ''prod.py'' will import settings from ''ralph.settings''.

runserver script:

<code>
#!/bin/bash
export PATH="/opt/ralph/ralph-core/bin:$PATH"
/opt/ralph/ralph-core/bin/ralph runserver 127.0.0.1:8000 >> /var/log/ralph/ralph.log 2>&1
</code>

init script:

<code>
#!/bin/bash
export PATH="/opt/ralph/ralph-core/bin:/usr/local/bin:/usr/bin:/bin"

case "$1" in
        start)
                pgrep -f "/opt/ralph/ralph-core/bin/python /opt/ralph/ralph-core/bin/ralph" &> /dev/null
                if [ $? -eq 0 ]; then echo "ralph already running"; exit 1; fi
                su - ralph -c "/home/ralph/runserver &" &> /dev/null
                ;;
        stop)
                pkill -9 -u ralph -f "/opt/ralph/ralph-core/bin/python /opt/ralph/ralph-core/bin/ralph" &> /dev/null
                ;;
        restart)
                pkill -9 -u ralph -f "/opt/ralph/ralph-core/bin/python /opt/ralph/ralph-core/bin/ralph" &> /dev/null
                sleep 2
                su - ralph -c "/home/ralph/runserver" &> /dev/null
                ;;
        *)
                echo "Usage: ralph {start|stop|restart}"
                ;;
esac
</code>

If using Ubuntu, add it to start on boot:

<code>
update-rc.d ralph defaults
</code>