Chaos is the web service which can feed Navitia with real-time disruptions. It can work together with Kirin which can feed Navitia with real-time delays.

Swagger

git clone git@github.com:CanalTP/Chaos.git
cd Chaos

• Install Python sudo apt-get install python2.7 python2.7-dev
• Install pip
• Install virtualenv

virtualenv venv
source venv/bin/activate
pip install -r requirements.txt

• Install protoc sudo apt-get install protobuf-compiler (or build it from source: protobuf v2.6.1)
• Build protobufs

git submodule init
git submodule update
./setup.py build_pbf

sudo apt-get install postgresql libpq-dev
sudo -i -u postgres
# Create a user
createuser -P navitia (password "navitia")

# Create database
createdb -O navitia chaos

# Create database for tests
createdb -O navitia chaos_testing
ctrl + d

To improve its performance Chaos can use Redis.

Installing Redis

You can deactivate Redis usage in default_settings.py by changing 'CACHE_TYPE' to 'simple'

For development purpose you can deactivate cache usage in default_settings.py by forcing 'CACHE_TYPE' to 'null'

You can use honcho for managing Procfile-based applications.

pip install honcho

Write this line inside

CHAOS_CONFIG_FILE=default_settings.py

honcho run ./manage.py db upgrade

RabbitMQ is optional and you can deactivate it if you don't want to send disruptions to a queue.

# chaos/default_settings.py
ENABLE_RABBITMQ = False

honcho start

git clone git@github.com:CanalTP/Chaos.git
cd Chaos
git submodule init
git submodule update
docker-compose up -d

To watch logs output:

docker-compose logs -f

Chaos will be accessible on http://chaos_ws_1.docker if you are using the docker-gen-hosts tool, it will also be accessible on http://chaos-ws.local.canaltp.fr The database will be accessible at 'chaos_database_1.docker' and default RabbitMQ interface at 'http://chaos_rabbitmq_1.docker:15672'.

The following commands for tests are also working in Docker environment, you just have to run before:

docker-compose exec ws bash
cd tests

cd tests
honcho run nosetests

cd tests
honcho run lettuce

To stop directly on faulty test

cd tests
honcho run lettuce --failfast