CTF Engine

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• Each challenge instance runs in an issolated docker container

• Create challenges as docker images

• For development: supports docker-machine auto-configuration

• Run the engine from docker too :D

• Scalability: Supports multiple Docker servers (round-robin selection)

Setup - Development

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• Install Ruby

• Unix: Install Docker

• Windows/OSX: Install Docker Toolbox

• ‘bundle install`

• ‘bundle exec rake db:setup`

• ‘bundle exec rails server`

• Update config/docker_hosts.yml

• Create challenges in the dockerfiles/challenges directory

• Build challenges using ‘rails dockerfiles/build_all.rb`

• Default creds: admin:admin123

Setup - Production

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• Collect TLS certificate from Docker servers

• Configure config/docker_hosts.yml

• Configure docker-compose.yml to point to cert path

• ‘docker-compose run engine bundle exec rake db:setup`

• ‘docker-compose up -d`