reader ↠ doc Continuous Delivery ↠ 9780321601919 Free · helpyouantib

eBook Continuous Delivery

reader ↠ doc Continuous Delivery ↠ 9780321601919 Free · helpyouantib Ì [PDF / Epub] ✅ Continuous Delivery By Jez Humble – Winner of the 2011 Jolt Excellence AwardGetting software released to users is often a painful risky and time consuming process This groCollaboration between developers testers and operations Developing features incrementally on large and distributed teams Implementing an effective configuration management strategy Automating acceptance testing from analysis to implementation Testing capacity and other non functional reuirements Implementing continuous deployment and zero downtime releases Managing infrastructure data components and dependencies Navigating risk management compliance and auditing Whether you're a developer systems administrator tester or manager this book will help your organization move from idea to release faster than ever so you can deliver value to your business rapidly and reliably It IS a very good book and its content is essential for anyone interested in CI mature devops processes Why just 4 starst then It's faaar too wordy you could easily put the same content in terms of meaningful information in less pages I just could not get rid of a feeling that I'm reading the same sentences for hundredth time But regardless of that this is A MUST READ for anyone deeplyn involved in producing professional software on enterprise level

Jez Humble Ô Continuous Delivery pdf

Y 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 techniues 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 Some years ago I had the fortune to attend Jes Humble's workshop on continuous delivery It was a good workshop well delivered and I learned a lotI was therefore surprised that it turned out to be such a struggle to read this book It's not that I disagree with the contents but it's so boringEach page is mostly a wall of text with no diagrams sidebars illustrations or even bulleted lists Even when there's an occasional diagram it seems strangely unhelpful While it could be that the material simply doesn't lend itself easily to illustrations I don't think that's the caseAs an example on page 354 the authors discuss the diamond dependency problem but they use only text If that isn't an opportunity for an illustration I don't know what is This particular problem is named after a shape the diamond shape so it'd be a simple matter to add an illustration The opportunity is missed here and many other placesIt's not that I'm afraid of books without diagrams; I read lots of fiction In a textbook that attempts to teach on the other hand I think the reader needs all the help she can get to get through dry material Such help is absent hereShow don't tell

text ë Continuous Delivery Ô Jez Humble

Continuous DeliveryWinner of the Jolt Excellence AwardGetting software released to users is often a painful risky and time consuming process This groundbreaking new book sets out the principles and technical practices that enable rapid incremental delivery of high uality valuable new 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 sometimes even minutes 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 deliver I'm a bit torn on this book on the one hand it is a very thorough look at a number of important but often overlooked topics; on the other hand the book is not a very effective teacher of this important material The biggest problem is the lack of real world examples Chapters are mostly huge blocks of advice the advice is good but not memorable or actionable in the way it is presented There need to be far examples of real world systems with both good approaches and bad approaches discussed and compared in detail Moreover the book is very very repetitive Perhaps it's from an attempt to make each chapter standalone but while trying to find the new and interesting info in a new chapter you have to wade through tons of info you read many times in earlier chapters or even earlier paragraphs There are many sentences paragraphs and even pages that can be skipped because they are obvious or just a rehash of something earlier or both In short this is a VERY important perhaps even reuired read for anyone working on medium and large software projects but this book desperately needs a tldr companion with lots of examples A few good uotes from the book If It Hurts Do It More Freuently and Bring the Pain ForwardDone Means ReleasedIn our experience it is an enduring myth that configuration information is somehow less risky to change than source codeWithout continuous integration your software is broken until somebody proves it works usually during a testing or integration stage With continuous integration your software is proven to work assuming a sufficiently comprehensive set of automated tests with every new change—and you know the moment it breaks and can fix it immediatelyFor the software delivery process the most important global metric is cycle time This is the time between deciding that a feature needs to be implemented and having that feature released to users As Mary Poppendieck asks “How long would it take your organization to deploy a change that involves just one single line of code Do you do this on a repeatable reliable basis”Errors are easiest to fix if they are detected early close to the point where they were introduced To paraphrase performance is a measure of the time taken to process a single transaction and can be measured either in isolation or under load Throughput is the number of transactions a system can process in a given timespan It is always limited by some bottleneck in the system The maximum throughput a system can sustain for a given workload while maintaining an acceptable response time for each individual reuest is its capacity Customers are usually interested in throughput or capacityWhen we talk about components we mean a reasonably large scale code structure within an application with a well defined API that could potentially be swapped out for another implementation A component based software system is distinguished by the fact that the codebase is divided into discrete pieces that provide behavior through well defined limited interactions with other components