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Dev/Test scenarios in DevOps world
Davide Benvegnù, a Microsoft MVP and CTO at DBTek Ltd, shares insights on DevOps and Agile methodologies, emphasizing the importance of dev/test integration and continuous deployment practices. He discusses the benefits of testing applications in production-like environments and highlights strategies to improve deployment frequency and application quality. The document also outlines various testing approaches including unit, functional, and load testing, as well as the use of cloud environments for enhanced agility and scalability.
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Dev/Test scenarios in DevOps world
- 1. Davide Benvegnù Microsoft MVPVisual Studio ALM
- 2. Davide Benvegnù • Director& CTO – DBTek Ltd • Former International Development Manager – Aruba.it • Microsoft MVP in Visual Studio ALM • Speaker - Trainer • Community Contributor ( 2 in Italy, 1 in HK soon) • 13+ years experience in IT, 10+ years experience in ALM / DevOps @davidebenvegnu – www.dbtek.com.hk – davide@dbtek.com.hk @bout Me
- 3. • DevOps, Agileand so • About Dev/Test • Unit test, Functional test and Load Test • Continuous deployment • Demo Agenda
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- 5. DevOps: the threestage conversation 3 Tools2 Processes1 People
- 6. DevOps Framework Environments Dev/Test Integration Pre-Production Production Processes Source andVersion control Build Test Deploy Monitor and Learn
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- 8. Not 100% Agile? •Try to build a DevOps culture • Set your goals – Improved deployment frequency – Faster time-to-market – Lower failure rate • Transform simple processes to make them increasingly programmable and dynamic • Go Agile!
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- 10. Dev/Test Benefits Improve quality Deliverhigher quality releases by testing your applications in a “production-like” environment to understand how they will handle real world usage scenarios.
- 11. Dev/Test: Cloud Environments Improveteam agility and resource efficiency with the Cloud! • Self-provisioning of the environments • Perform realistic scale testing in environments that mirror production. • Developers perform unit and integration testing in isolated individual environments. • Production issues or incompatible code are discovered earlier. • Connect cloud and on-premises resources for hybrid applications. Virtual Machines Web Apps Cloud Services Databases
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- 13. A different mindset •Release smaller and faster • Embracing errors • Design for availability, reliability, scalability • Performance • Continuous test • Continuous requirements tuning
- 14. Unit test, FunctionalTest, Load test
- 15. What does failsafemean for my applications? It depends… but some general practices apply. • Avoid single point of failure • Failure mode analysis • Manage transient errors • Graceful degradation • Eliminate human factors (Automate!)
- 16. Unit test • Firstlayer of test • Written by Developers • Executed directly against the codebase • You need them! • The way you can be sure your changes don’t break anything • Should be automatically executed with the build
- 17. Functional test • Useracceptance test • Based on requirements • Can be manual or automatic • Pre-defined or created with Exploratory testing • Should be executed • Should be automatically executed post deployment
- 18. Load test • Testyou application performances • Thousands, millions of users • Learn how you it behaves under load • Can be automatically executed after deployment • Cloud Load Testing: better! – Dynamic test agents – No fixed costs – Scalable to (virtually) infinite – Test you application from different geographical places
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- 20. Manual Builds andDeploy Source Build Test Deploy Monitor and Learn cspkg Environments cspkg
- 21. Environments Dev/Test Integration Pre-Production Production Continuous Integration andDeployment Source Build Test Deploy Monitor and Learn cspkg cspkg cspkg cspkg cspkg
- 22. • Structuring differentenvironments (dev, qa, uat, prod) • Using slots for deployment • Spin-up new environments on demand • Deploy multi-tier applications and dependencies • Apply database changes Real world deployments
- 23. Demo: Visual StudioTeam Services
- 24. Complete suite Source Control,Agile planning, Test management, Build, Release Management Integrated Environment Link code, work items, tests, build and releases Enterprise readiness Security, SLA, ISO, pools and queue management Why VSTS / TFS
- 25. Hosted build agents* No installation required Multi-platform Build natively on Windows, Mac, and Linux Build .Net, Java, Objective-C, Javascript.. Release Management Deploy to a multi-environment release pipeline Use existing release and approval flows * Available only on VSTS CI and CD in VSTS / TFS
- 26. Automatic test executionafter build / deployment Manual and automated Functional/UI Testing Plan, execute, track User acceptance testing based on the requirements Exploratory testing Load Testing On-premises agents In the cloud, from multiple regions* * Available only on VSTS Tests in VSTS / TFS
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- 28. Davide Benvegnù Microsoft MVPVisual Studio ALM