This is a basic and simple LTI Tool Provider that uses the ims-lti gem. To get this running in your development environment, check out the repo then:
bundle install
shotgun
If you'd rather run the app using docker a docker-compose file is included:
docker-compose run --rm web bundle install
docker-compose up
If you're using dinghy on OS X you'll be able to visit the app at: http://lti1-example.docker/
You can use the XML from the /tool_config.xml endpoint to configure the tool in a Tool Consumer.
You can use this with the example LTI Tool Consumer to do some simple LTI testing.