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grical is a Django web application for maintaining and finding events. It is the Python software running behind grical.org and other sites.

The following setup uses sqlite3 as the database backend, virtualenv for the isolated Python environment and a GNU/Linux host system. Other combinations are possible like using PostgreSQL.

Clone the repository

cd ~
git clone [email protected]:wikical/grical.git

Install the OS requirement packages. For Ubuntu 14.04LTS there is a list of OS package requirements at grical/requirements/development.trusty.apt. You can install them with:

cat ~/grical/requirements/development.trusty.apt | tr '\n' ' '|xargs sudo apt-get install

For Ubuntu 15.04+ use:

cat ~/grical/requirements/development.xenial.apt | tr '\n' ' '|xargs sudo apt-get install

Create and activate a Python virtual environment, and setup Django:

mkdir ~/virtualenvs
virtualenv ~/virtualenvs/grical
source ~/virtualenvs/grical/bin/activate
pip install -r ~/grical/requirements/development.pip
python manage_development.py migrate
sqlite3 grical_db.sql "UPDATE django_site SET domain='localhost:8000', name='Grical development';"

Install bower:

cd ~/grical
sudo apt-get instal nodejs npm
sudo npm install bower -g

Install the required packages for grical with bower:

cd ~/grical/requirements
bower install --config.directory=../grical/static/bower_components

Start the Django Development Server

cd ~/grical && python manage_development.py runserver 0.0.0.0:8000

Now you can open the site in your browser by just visiting http://localhost:8000 and edit the source code.

To run the tests, install tox either using a OS package or with pip.

Run tests by issuing the tox command:

cd ~/grical
tox

These instructions assume the installation is taking place in a GNU/Linux system. The database used will be PostgreSQL 9.5.

Create a system user grical and clone the repository

sudo adduser grical
su grical -c "cd /home/grical && hg clone ssh://[email protected]/gridmind/grical"

Setup PostgreSQL 9.5, e.g. following http://tecadmin.net/install-postgresql-server-on-ubuntu/:

sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | apt-key add -
apt-get update
apt-get install postgresql-9.5 postgresql-9.5-postgis-2.2

Install the required OS packages:

cat ~/grical/requirements/production.apt | tr '\n' ' '|xargs sudo apt-get install

Create a DB user, a database, and the postgis extension for the database:

su postgres -c "createuser --pwprompt --no-createdb --no-createrole --no-superuser grical"
su postgres -c "createdb --owner grical -T template1 grical"
su postgres -c "psql -d grical -c 'CREATE EXTENSION IF NOT EXISTS postgis;'"

Keep the grical user password (you have been asked for) for the next step.

Copy grical/settings/development.py to grical/settings/settings.py, and in it:

• Set DEBUG = False
• Review and set CACHES, DATABASES, ADMINS, IMAP_*, GEONAMES_*, REPLY_TO, DEFAULT_FROM_EMAIL, SERVER_EMAIL, EMAIL_SUBJECT_PREFIX and EMAIL_*.
• Set a SECRET_KEY.

For DATABASES use user name, db name and password created above.

Optionally, have a look at settings_base.py for other customization options, documented inline.

Copy manage_development.py to manage.py and replace development in it with settings.

Install the Python requirements:

cd ~grical/grical/requirements
sudo pip install -r production.pip

Install the required JS and CSS packages with Bower:

sudo apt-get instal nodejs npm
sudo npm install bower -g
su grical -c "cd ~grical/grical/requirements && bower install --config.directory=../grical/static/bower_components"

Migrate the database and create a cache table:

su -grical -c "cd ~grical/grical && python manage.py migrate"
su -grical -c "cd ~grical/grical && python createcachetable cache"
psql -d grical_db -U grical_user -h localhost -p 5432 -c "UPDATE django_site SET (domain, name) = ('grical', 'GriCal')"

Setup a cron jobs for accepting events submitted as email. It should run periodically the custom Django management command imap.

Installing memcached is recommended as Grical will automatically use it for performance:

apt-get install memcached

Edit /etc/memcached.conf and restart memcached. Set the Django settings as appropriate.

Run a celery worker as a daemon. This is the best option for production. For the broker we suggest RabbitMQ. The broker setup for Celery and RabbitMQ is minimal and requires no options.

1. Install RabbitMQ:

   apt-get install rabbitmq-server
   

2. Add a user and a vhost:

   rabbitmqctl add_user guest guest
   rabbitmqctl add_vhost "/"
   rabbitmqctl set_permissions -p "/" guest ".*" ".*" ".*"
   

Refer further to Deploying Django. We recommend using uWSGI and nginx.