Chapter 14

Answer 1

The use of blue–green deployments provides us with the following set of benefits:

• The ability to switch the application from one version to another instantly
• The ability to easily roll back the application from a newer version to an older version in case the new version experiences some critical functionality bugs
• A reduction in downtime related to application upgrades

Answer 2

Using a canary deployment can help in the testing of an application in the following ways:

• The application is tested with a small sample of real-world requests...