Continuous Delivery

Work in a way so that the Software is in a releasable state.

• Not to be confused with Continuous Deployment
• Applicable to all kinds of software
• Improves Improves software delivery performance. See the metrics defined by DORA.
• Define a Release as a working build that passed all automated tests
• Enables Blue Green Deployment or Rolling Deployment models
• For large refactorings, Branch by Abstraction.

Practises

• Test Automation
• Deployment Automation
• Trunk Based Development
• Shifting left on security
• Continuous Integration
• Continuous Testing
• Monitoring and Observabillity

Pitfalls

• Not optimising the processes along with increasing frequency of releases
• Automation increases test requirements, slowing down work

Mitigations

• Creating a Value Stream Mapping (VSM)