iOSDevUK Conference- DevOps for iOS Apps

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SHASHIKANT JAGTAP
DevOps for iOS Apps
iOSDevUK Conference 2018
@Shashikant86
shashikantjagtap.net
#iOSDevOps
XCBlog (Mediu...

2
• iOS Development Challenges
• Basics of DevOps
• CI/CD Practices (YNAP)
• Speeding Up Swift Builds
• App Store Connect ...

3What are iOS Development Challenges?

4
Manual Releases are Pain
iOS Development Challenges

5
iOS Development Challenges
Lack of Build Automation

6iOS Development Challenges
CI/CD Setup is Hard

7iOS Development Challenges
Lack of Infrastructure Automation

8iOS Development Challenges
Immature Quality Assurance

9iOS Development Challenges
Pull Deployments

10Hello DevOps
Not tooling, Not a Role, It’s Culture

11DevOps Pillars
Systems Thinking Amplifying Feedback Loop
Continuous Learning & Experimentation

12DevOps Pillars for iOS
Jira, Slack, Agile
Swiftlint, Danger, XCTest, CI,
XCUITest, Sketch, Zeplin,
Apple Dev Tools, AppS...

13DevOps Engineer: Tools
Where is iOS Tooling Here?
Image Source: http://jgovernor-media.redmonk.com/jgovernor/ﬁles/2017/0...

14
DevOps Practices
Collaborative
Development
Continuous
Integration &
Delivery (CI/
CD)
Infrastructure
As Code
Build, Tes...

15YNAP Tooling
Our Technology Stack at YNAP

16
Collaborative iOS Development
Pairing, Code Reviews, Common Architecture

17Collaborative iOS Development
GitHub Templates, Danger, Swiftlint
PR Templates & Codeowners Danger to detect issues
Auto...

18Build, Test, Release Automation
xcodebuild, agvtool, altool, Fastlane tools

19YNAP - Build Automation
Archive App from TravisCI
Travis Build Matrix to
run parallel builds and
conditional archive

20
YNAP - Build Automation
Parallelising Builds and Tests
Parallelise Build using
Travis CI Build Matrix

21YNAP - Build Automation
Fastlane Slack Notification
Fastlane Slack Notification

22Infrastructure As Code
Bash, Ruby, Ansible, Chef

23Infrastructure As Code- YNAP
Travis, Danger, Pod Configuration in repo

24General iOS CI/CD Options
iOS CI/CD Options for Cloud and Self-Hosted

25YNAP-iOS CI/CD- YNAP
Travis CI handles Our CI/CD

26
iOS Continuous Testing-YNAP
Apple’s XCTest framework for all types of testing

27iOS Continuous Monitoring- YNAP
Crashlytics & Fabric for monitoring Apps

28Xcode 10 & Beyond…
What’s New?

29Speeding up Swift Builds- Tips
Swift Build Time
https://github.com/fastred/Optimizing-Swift-Build-Times

30Faster Swift Builds Xcode 10
Understanding Xcode Build Process
https://developer.apple.com/videos/play/wwdc2018/415/

31Faster Swift Builds Xcode 10
Use New Build System- XCBuild

32
Faster Swift Builds Xcode 10
Understand Build Process & Parallelised Builds
Parallelise
Builds

33
Faster Swift Builds Xcode 10
Improve Run Script Phase

34
Faster Swift Builds Xcode 10
Separate Compilation Mode & Optimization Level

35
Faster Swift Builds Xcode 10 - Tips
Some other things to consider with Xcode 10
Select right
Dependency
Manager
Add Imp...

36
Faster Tests in Xcode 10
XCTest for Unit, Integration, Network, API, Performance Tests
KEEP IT
NATIVE

37
Faster Tests in Xcode 10
Parallelise Tests for speed

38
Speeding Tests - Tips
Limit UITest,
Maximise
Domain Layer
Tests
Find
right
tests
to run in parallel
Keep
Performance
Te...

39
Faster iOS Releases
Automate Build for Continuous Delivery to TestFlight

40
Speeding Releases- Tips
Never Release
from Local
Xcode. Automate
Releases
GitFlow or Trunk Based
Development
Select
Rig...

41
Native Apple Developer CLI Tools
xcodebuild:-
Analyse, Build,
Test and Archive.
Security : Manage
Keychain
PlistBuddy
a...

42
App Store Connect API
Talk to App Store Connect with API
https://developer.apple.com/videos/play/wwdc2018/303

43App Store Connect API
Manage Certificates, Profiles, Users, Apps, Sales etc
api.appstoreconnect.apple.com

44
Accessing App Store Connect API
JWT Tokens needs to be created after every 20 mins
Generate JWT Token
Generate API Key
...

45
What to Expect?
Be Prepared To Learn New Wrapper Tools
More tools will be there in
market. Written on top of App
Store ...

46
Automate in Apple Way
Good Bye Third-Party Tools?
Finally, we got official API to talk to App Store Connect

47
Benefits of iOS DevOps
DevOps is Sense of Urgency
Boost iOS Developer Productivity – Let them Build Features,
not Infra...

48
Summary
It’s not too late. Enable DevOps in Your iOS Team Today
Common iOS Development problems
What is DevOps and how ...

@ynap
www.ynap.com
YOOX NET-A-PORTER GROUP

@Shashikant86
shashikantjagtap.net
About Me:
https://www.linkedin.com/in/shashikantjagtap
Tweet #iOSDevOps #iOSDevUK

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