Docker in Action, Second Edition

Chapter 12. First-class configuration abstractions

This chapter covers

• The problems configuration and secrets solve and the forms those solutions take
• Modeling and solving configuration problems for Docker services
• The challenge of delivering secrets to applications
• Modeling and delivering secrets to Docker services
• Approaches for using configurations and secrets in Docker services

Applications often run in multiple environments and must adapt to different conditions in those environments. You may run an application locally, in a test environment integrated with collaborating applications and data sources, and finally in production. Perhaps you deploy an application instance for each customer in order to isolate or specialize each customer’s ...