CONTINUOUS DELIVERY

Getting software released to users is often a painful, risky, and time-consuming process. This book sets out the principles and technical practices that aims to enable rapid, incremental delivery of high quality, valuable functionality to users. Through automation of the build, deployment, and testing process, and improved collaboration between developers, testers, and operations, delivery teams can get changes released in a matter of hours - no matter what the size of a project or the complexity of its code base. Jez Humble and David Farley begin by presenting the foundations of a rapid, reliable, low-risk delivery process. Next, they introduce the 'deployment pipeline', an automated process for managing all changes, from check-in to release. Finally, they discuss the 'ecosystem' needed to support continuous delivery, from infrastructure, data and configuration management to governance. The authors introduce state-of-the-art techniques, including automated infrastructure management and data migration, and the use of virtualization. For each, they review key issues, identify best practices, and demonstrate how to mitigate risks. Coverage includes - Automating all facets of building, integrating, testing, and deploying software; Implementing deployment pipelines at team and organizational levels; Improving collaboration between developers, testers, and operations; Developing features incrementally on large and distributed teams; Implementing an configuration management strategy; Automating acceptance testing, from analysis to implementation; Testing capacity and other non-functional requirements; Implementing continuous deployment and zero-downtime releases; Managing infrastructure, data, components and dependencies; Navigating risk management, compliance, and auditing.