TenkaCloud is an open-source, Apache-2.0 licensed platform built specifically for hands-on cloud competitions and developer training on real AWS accounts. Designed to streamline event management, it provisions isolated environments for each participating team while seamlessly integrating access control, scoring, fault injection, leaderboards, and automated cleanup into a unified operator workflow.

Created by Susumu Tomita (founder of BULL LLC), TenkaCloud accommodates various learning and competition styles. Users can start with a no-signup browser quest, run the platform locally via Docker, or host large-scale events directly on their own AWS accounts. Thanks to its open problem catalog and authoring skill, teams can easily create, customize, and reuse their own unique cloud drills and challenges.

Pros of TenkaCloud

Open-source and distributed under the Apache-2.0 license
Provisions completely isolated environments for each team on real AWS accounts
Supports both self-paced Challenges and continuously scored Battles
Comprehensive operator workflow covering access, scoring, fault injection, leaderboards, and cleanup
Flexible deployment options including local Docker execution and browser quests

Cons of TenkaCloud

Requires access to and management of real AWS accounts to host full events
May require a learning curve for operators setting up custom problem catalogs
Dependent on external cloud infrastructure costs when running events on live AWS environments