Configuration

Files

• Database config: config/database.yml
• Secret keys: config/secrets.yml
• Config of development, test, production: config/environments/*.rb.

Environment

Production:

• S3_KEY, S3_SECRET, S3_BUCKET - Used for syncing S3 certificates between the CTF VPN server and the scoreboard.

• RAILS_SERVE_STATIC_FILES - More information: https://devcenter.heroku.com/changelog-items/617

• RAILS_LOG_TO_STDOUT - More information: https://blog.heroku.com/container_ready_rails_5#stdout-logging

• SENDGRID_USERNAME - Used for https://elements.heroku.com/addons/sendgrid

• SENDGRID_PASSWORD - Used for https://elements.heroku.com/addons/sendgrid

• APP_URL - Used in order to provide return

Secret:

• SECRET_KEY_BASE - https://medium.com/@michaeljcoyne/understanding-the-secret-key-base-in-ruby-on-rails-ce2f6f9968a1

Sentry:

• SENTRY_DSN - https://elements.heroku.com/addons/sentry