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Agile DevOps: Test-driven infrastructure
Few in the software industry question that writing automated tests for application code is a good practice. Teams are now applying similar automated testing practices to infrastructure and environments. In this Agile DevOps installment, DevOps expert Paul Duvall covers writing automated tests for your infrastructure using tools such as Cucumber with Gherkin. These tests can be run in conjunction with every scripted change to the infrastructure to ensure quick feedback when a change introduces an error into an environment.
Also available in: Russian   Japanese  
Articles 06 Nov 2012
Agile DevOps: Continuous software delivery in the cloud
When developers and operations work together in a collaborative manner, they often need one place to manage the software delivery process and pipeline of changes. A Continuous Delivery (CD) platform addresses this need. In this Agile DevOps installment, DevOps expert Paul Duvall lays out how you can use OpenDelivery, an open CD platform.
Also available in: Russian   Japanese  
Articles 08 Jan 2013
Agile DevOps: Transient environments
Often, after a shared environment is provisioned, it's never decommissioned and might run for weeks or months, with engineers applying manual configuration changes throughout its lifetime. This risky approach regularly causes deployment problems and other strange "environment" errors to occur during development, test, and production cycles. This Agile DevOps installment explains how to create ephemeral environments that are terminated on a frequent basis. Once all environments are scripted and versioned, these test environments are only used long enough to run through a suite of tests as the software moves through a delivery pipeline on its way to production.
Also available in: Russian   Japanese   Portuguese  
Articles 09 Oct 2012
Agile DevOps: The flattening of the software release process
What does it mean to "flatten" your software release process? How will this affect your organizational structure? In the first installment of the Agile DevOps series, DevOps expert Paul Duvall describes how developers and operations are working together on software delivery teams to streamline the process of developing and releasing software. He discusses such nascent topics as test-driven infrastructures, transient environments, and the Chaos Monkey -- and how these techniques all work toward the goal of getting software to users more quickly and more often.
Also available in: Russian   Japanese   Portuguese  
Articles 23 Aug 2012
Agile DevOps: Unleash the Chaos Monkey
When would it ever be a good idea to randomly and intentionally try to terminate parts of your software system -- including the hardware it runs on? How about early and often? In this Agile DevOps installment, DevOps expert Paul Duvall describes approaches to creating a Chaos Monkey (as it's been dubbed by Netflix) to ensure that your production infrastructure can recover from inevitable system failures.
Also available in: Russian   Japanese   Portuguese  
Articles 23 Oct 2012
Agile DevOps: Infrastructure automation
How many times have you manually applied the same steps when creating an infrastructure, or relied on another team to set up an environment for you? What if all of these actions were scripted and versioned just like the rest of the software system? In this Agile DevOps installment, DevOps expert Paul Duvall shows how Chef and Puppet enable you to automate infrastructure provisioning. He covers the basics of each of these tools -- along with their similarities, use cases, and differences -- and provides a video demo of scripting with Puppet.
Also available in: Russian   Japanese   Portuguese  
Articles 11 Sep 2012
Agile DevOps: Version everything
Which types of software-system artifacts should you version? In this Agile DevOps installment, DevOps expert Paul Duvall recommends that DevOps teams version application code, infrastructure, configuration, data, and even internal system artifacts to gain the capacity to deliver software to users quickly and often.
Also available in: Russian   Japanese   Portuguese  
Articles 27 Nov 2012
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