Best Practices for DevOps: Advanced Deployment Patterns

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1 WHITEPAPER www.digital.ai Getting new software to your users without interrupting their experience is hard; how do you upgrade an application that's in active use? And if you do take an application offline for an update, what happens if something goes wrong? It's tempting to try to minimize downtime and reduce release risks by implementing extensive manual processes and procedures—but pre-release work that isn't automated slows down delivery and makes it hard to roll out new features. The good news is that you can avoid time-consuming manual work while reducing release risks by following DevOps principles to automate the release and deployment process. And as you automate, using advanced deployment patterns can help you speed up the software delivery cycle while maintaining control over the way your applications are deployed. This white paper gives you insights into the DevOps best practice of advanced deployment patterns: Blue/ Green deployments, rolling updates, canary releases, dark launches, and feature toggles. It describes how each pattern works, the advantages and disadvantages of each one, considerations for implementing them, and best practices when applying them. EXECUTIVE SUMMARY ADVANCED DEPLOYMENT PATTERNS Best Practices for DevOps: Taking Automation to the Next Level with Advanced Deployment Patterns Application downtime is expensive, so most enterprises strive to minimize or, better yet, eliminate it. Reducing downtime when you need to roll out software patches or new features is a technical challenge. But as an organization starts to automate software delivery pipelines and deliver applications to Production more often, avoiding downtime with application release evolves from a "nice-to-have" into something that's critical for the business. But simply automating manual activities isn't always enough; organizations need to ensure that DevOps teams implement automated processes in a consistent way, so that those processes can be scaled across the enterprise. Advanced deployment patterns provide a flexible structure that you can use when automating the release of new software. With deployment patterns, you can control the technical deployment of new software versions as well as the rollout of new features to users. You can even release features to limited user groups and test them in Production with much less risk than if you made them generally available.

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