The Twelve-Factor App

Aims

• Use declarative formats for setup automation, minimising time and cost to onboard new engineers.
• Clean contracts with the underlying operating system for maximum portability between environments.
• Suited for deployment on cloud platforms, reducing need for traditional system administration.
• Minimise divergence between deployment and production, enabling Continuous Delivery.
• Scale up without significant investment in tooling, architecture or development practice.

Factors

1. Codebase
2. Dependencies
3. Configuration
4. Backing services
5. Build, release, run
6. Processes
7. Port binding
8. Concurrency
9. Disposability
10. Dev/prod parity
11. Logs
12. Administrative processes

References

• The Twelve-Factor App

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Children

1. Administrative processes
2. Backing services
3. Build, release, run
4. Codebase
5. Concurrency
6. Configuration
7. Dependencies
8. Dev/prod parity
9. Disposability
10. Logs
11. Port binding
12. Processes

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Backlinks

• Reading list (internal) (Private)