DevOps Fest 2019. Володимир Кімак. Mobile CI/CD. Cross-platform app approach

Professional conference on DevOps practices 6APRIL 2019 KYIV, UKRAINE
Volodymyr Kimak
Mobile CI/CD.
Cross-platform app approach
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About me
Senior .NET Engineer
8+ years in .NET,
4+ years in mobile (Xamarin),
IF .NET User Group co-organiser
IF Mobile User Group organiser
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Agenda
● Why test automation is essential
● UI Test parallelism
● CI/CD prerequisites
● CI/CD sample flow
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Why test automation is essential for CI/CD
● It is required by Continuous deployment practice
● Decreases time for regression testing
● Works well with small changes
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Why users are not satisfied with mobile apps ?
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Mobile testing
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Relative cost of defect, by time of discovery
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Why test on real devices?
● Real devices have non-optimal network conditions and run a lot of
apps at the same time
● Many of phone gestures cannot be simulated
● There are a bunch of third-party libraries that require a specific
type of hardware, and that cannot be run on an emulator
● Real devices are good for performance testing
● Users use apps on real devices, not on emulators
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Mobile “traditional” (real-life) Test Pyramid
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Mobile Modified Test Pyramid
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Mobile app architecture
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UI Tests: Parallelism
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● On-premises
● Cloud based

Git workflow: Gitflow
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Mobile app configuration
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● App Id
● App name
● App version
● App settings
● App analytics
● App diagnostics
● App distribution

CI/CD Pipeline solutions
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● TeamCity
● Visual Studio App Center
● Azure DevOps

Sample CI/CD flow
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● Git: gitflow
● Test/Diagnostics: AppCenter
● CI/CD: Azure Devops
● App: multi platform iOS/Android on Xamarin

Library: Environment variables / app settings
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App Center: app per environment
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Build: Pull Request to Develop
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Build: Pull Request to Release/Hotfix
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Build: Develop
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Build: Release/Hotfix
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Build: Task groups
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Release: Develop
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Release: Release/Hotfix
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AppCenter Test
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Summary
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● Frequent and stable releases to Production
● Improves mobile application architecture and code
quality
● CI/CD integration - a must-have for a mobile project
● DevOps is a culture, not a role!

Questions?
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DevOps Fest 2019. Володимир Кімак. Mobile CI/CD. Cross-platform app approach

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