Codebase

One codebase tracked in revision control, many deploys.

• Always tracked in version control.
• 1:1 correlation between the codebase and the app.
  • Mutiple codebases represent a distributed system. Each component of a distributed system is an app which can individually comply with the principles.
  • Multiple apps sharing code is a violation: shared code should be refactored into a libraries which can use a dependency manager.
• One codebase per app, but many deploys (running instances).
  • Every developer has a copy of the app running locally; these count.
• Codebase is the same across all deploys.
  • Different versions might be active in each deploy.

References

• I. Codebase

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Backlinks

• The Twelve-Factor App (public)
• Administrative processes (public)
• Disposability (public)