By David Farley, Jez Humble
Winner of the 2011 Jolt Excellence Award
Getting software program published to clients is usually a painful, dicy, and time-consuming process.
This groundbreaking new booklet units out the foundations and technical practices that let fast, incremental supply of top of the range, important new performance to clients. via automation of the construct, deployment, and checking out approach, and enhanced collaboration among builders, testers, and operations, supply groups can get alterations published in a question of hours—sometimes even minutes–no topic what the dimensions of a undertaking or the complexity of its code base.
Jez Humble and David Farley commence via offering the rules of a fast, trustworthy, low-risk supply method. subsequent, they introduce the “deployment pipeline,” an automatic approach for dealing with all adjustments, from check-in to liberate. eventually, they talk about the “ecosystem” had to aid non-stop supply, from infrastructure, information and configuration administration to governance.
The authors introduce state of the art ideas, together with computerized infrastructure administration and information migration, and using virtualization. for every, they evaluate key matters, determine most sensible practices, and display tips on how to mitigate hazards. insurance includes
• Automating all elements of establishing, integrating, trying out, and deploying software
• enforcing deployment pipelines at group and organizational levels
• enhancing collaboration among builders, testers, and operations
• constructing positive aspects incrementally on huge and dispensed teams
• enforcing a good configuration administration strategy
• Automating popularity trying out, from research to implementation
• checking out capability and different non-functional requirements
• imposing non-stop deployment and zero-downtime releases
• dealing with infrastructure, information, elements and dependencies
• Navigating chance administration, compliance, and auditing
Whether you’re a developer, structures administrator, tester, or supervisor, this booklet can help your company stream from concept to unencumber speedier than ever—so you could carry worth on your company
Read Online or Download Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation (Addison-Wesley Signature Series) PDF
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Extra resources for Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation (Addison-Wesley Signature Series)
Simple interfaces require just a handful of commands to define them. At the same time, it is possible to refine the interface in order to get every detail just so. The fast turnaround aids the refinement process. The third advantage is that the user interface is clearly factored out from the rest of your application. The developer can concentrate on the implementation of the application core, and then fairly painlessly work up a user interface. The core set of Tk widgets is often sufficient for all your UI needs.
By now there are a large number of Tcl commands that have been contributed by the Tcl community. So another reason to choose Tcl is because of what you can access from Tcl scripts “out-of-the-box”. T o me, this is more important than the details of the language. The Tcl C library has clean interfaces and is simple to use. The library implements the basic interpreter and a set of core scripting commands that implement variables, flow control, file I/O, and procedures (see page 15). In addition, your application can define new Tcl commands.
The scan format includes a set notation. Use square brackets to delimit a set of characters. The set matches one or more characters that are copied into the variable. A dash is used to specify a range. The following scans a field of all lowercase letters. 2 => 1 set result => abc If the first character in the set is a right square bracket, then it is considered part of the set. If the first character in the set is^, then characters not in the set match. Again, put a right square bracket right after the ^ to include it in the set.
Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation (Addison-Wesley Signature Series) by David Farley, Jez Humble