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Murfin+: a Ruby on Rails app for building NHS data dashboards

Full documentation can be found here: https://sardjv.github.io/murfin_method

CircleCI Build Status GitHub license

.env file

To get started, you need a .env file with secrets. If you use bash, you can generate one with the command sh ./script/generate_env_file.sh. If not, there is an .env.example file included in the repo that you can use, just remove the .example from the filename. Make sure to change all secrets marked with YOU_MUST_CHANGE_THIS_PASSWORD before running in production!

Authentication

You need to set AUTH_METHOD to either form or ldap or oauth2 in the .env file.

Auth0

You need to add AUTH0_CLIENT_ID and AUTH0_CLIENT_SECRET to the .env file in the Auth0 section.

LDAP

In the .env file set respective LDAP configuration:

AUTH_METHOD must contain 'ldap' Set all required LDAP_AUTH_ values depending on your LDAP server settings. Examples can be found in .env.example file. After successful authentication on LDAP server side, Murfin+ user is matched with LDAP_AUTH_BIND_KEY and LDAP_AUTH_BIND_KEY pair, e.g. samaccountname => shithjohn. If user can not be found than it's created using pulled email and name details.

Form

No extra settings required.

Booting up

If you have Docker on your machine:

Setup

cp docker-compose.override.yml.sample docker-compose.override.yml
docker-compose build

Start

docker-compose up

It can then be accessed at http://localhost:3000/

Stop

Stop containers but do not remove them:

docker-compose stop

Stop containers and remove them:

docker-compose down --remove-orphans

Remove all stopped containers, networks not used by at least one container, dangling images and dangling build cache

docker system prune

Caching

You can view keys in the Redis cache from the console with:

Redis.new(url: "redis://redis:#{ENV['REDIS_PORT']}/0", password: ENV['REDIS_PASSWORD'], namespace: ENV['REDIS_CACHE_NAMESPACE']).keys('*')

or

Rails.cache.redis.keys('*')

Deployment without Docker

If you can run Docker, that is the quickest way to get started. If Docker install is not possible, the Dockerfile, docker-compose.yml and Gemfile files included in the repository can be used as a guide for dependencies.

Core dependencies:

API

The auto-generated API documentation can be viewed at http://localhost:3000/api_docs.

The Swagger docs are generated from the RSpec tests in spec/api To rebuild the swagger docs:

docker-compose run --rm app bundle exec rails rswag

Note: --rm option removes container after task ended.

Specs

To run Rubocop, and listen for file changes:

docker-compose run app bundle exec guard

Just press enter to run the whole test suite straight away.

To view and interact with a visible Chrome browser in feature tests, uncomment this line in rails_helper.rb:

c.javascript_driver = :chrome_visible

This exposes a VNC server on port 5900. You can access it on MacOS with:

open vnc://0.0.0.0:5900

The password is 'secret'. Run a feature spec with that window open and you should see the test running.

Note: feature specs should be run from app shell, so connect first:

docker exec -it murfin_method_app_1 sh

Code Coverage

After running the test suite, open the coverage/index.html file in a web browser to check what code is covered by the tests.

open coverage/index.html

Debugging

To access a 'binding.pry' debugging point, run with:

docker-compose run --service-ports app

Model Annotation

To annotate rails models with schema run

docker-compose run --rm app bundle exec annotate --models

Accessing the database console

To access the MySQL database console:

docker-compose exec db bash
mysql -u root -p
(enter root password)
show databases;
use murfin_method_development;
SELECT * FROM users;

Profiling performance

To print a report of time, memory and database calls:

  require 'performance'
  Performance.test { object.method }

Resolving issues

On first run new file is created:

script/first_run_complete.tmp

In some cases deleting it may help with resolving your running issues.