Summary

In this chapter, we have reached the last stage of the Continuous Delivery Pipeline: Release on Demand. After using feature flags to allow testers to view new changes in the development environment, we can use them to incrementally release those changes to a small population of users in a canary release. We may also want to set up our architecture to allow for each component to have different release cadences. After release, we want to ensure that the changes don’t disrupt the environment and that our overall solution is stable. To do that, we adhere to the principles and primary practices of SRE, including preparing for disaster recovery.

With the changes released in a stable environment, it’s time to measure business results through full-stack telemetry. We selected our measures during Continuous Exploration, relying on innovation accounting principles. Looking at these measures on dashboards visible to everyone, we can try to determine whether our benefit...