Building a µservice with Kotlin, Micronaut & GCP
•Download as PPTX, PDF•
0 likes•5,117 views
The document summarizes a presentation about building microservices with Kotlin, Micronaut, and Google Cloud Platform (GCP). The key points are: 1) Micronaut is a new Java framework from 2018 that is designed for building microservices and embraces modern JVM features and memory management. 2) Micronaut provides features like dependency injection, HTTP clients, and filters/interceptors out of the box that help build modern services. 3) The presentation demonstrates building a sample microservice with Micronaut and deploying it to GCP using Docker and Kubernetes. Jib is used to containerize the application.
Recommended
More Related Content
What's hot
What's hot (20)
Similar to Building a µservice with Kotlin, Micronaut & GCP
Similar to Building a µservice with Kotlin, Micronaut & GCP (20)
More from Robert MacLean
More from Robert MacLean (20)
Recently uploaded
Recently uploaded (20)
Building a µservice with Kotlin, Micronaut & GCP
- 1. Building a µservice with Kotlin, Micronaut & GCP
- 2. Aboutme Robert He/Him Steward of DevConf & Developer User Group Tech Lead at Equal Experts
- 3. DevConf Full day conference Swag, 5 tracks, international speakers You and 800 of your new best friends www.DevConf.co.za
- 4. Agenda Retrospective Lets build a µService together What about that Google secret sauce?
- 5. Wherearewe? Problem: Large retailer who needs to modernize On prem -> Cloud Single system -> microservices Ownership through DevOps and Feature Teams
- 6. Platformteam Builds out common guidance and tooling Alignment is optional but recommended • GCP • K8s & Docker • Base K8s design which includes normalisation • JVM stack
- 7. Ourchoices? Language = Kotlin Framework = Micronaut
- 9. Welcome New… like 2018 new From the fine people who brought you Grails Embrace the world of 2019 • Use modern JVM features & memory management • Build a framework for what we build today • Steal from everyone
- 10. Fastisrelative Fast != Better Better is also relative Fast shouldn’t be your only consideration Fast enough is a good goal to have What are you trading off…
- 11. Coldstart
- 12. Goals
- 13. Reflection API Controller GET /cart Get list of methods Do some loops and lookups … Profit Takes time
- 14. Aheadoftime API Controller GET /cart Get list of methods Do some loops and lookups … Profit Compiler does this now
- 15. Butwhatelse? Amazing Dependency Injection Everything you need to build modern services “in- the-box”, most enabled with a one-line build.gradle change Reasonable initial configs
- 16. Let’s build a µservice
- 17. Go!
- 18. Thedemoisalie I never did mn create-controller in real life We did everything in an interface
- 19. Complaints HTTP Client “magic” Randomness in documentation quality
- 20. Wins Pit of success StackDriver Output Prometheus All the things everyone else has is here Filters & Interceptors The escape hatches are awesome
- 21. Database? DataStore Key/val Want to work with objects – screw these strings Objectify
- 22. Objectify
- 23. Wins/Losses/Lies? Separate project to hide all the logic • Makes micronaut DI annoying Great that I do not need to worry about strings Great that I can choose async or sync
- 24. GettingtoGCP Gateway cart.shop.comproducts.beta.shop .com cart.beta.shop.com pod pod pod pod pod pod pod pod
- 25. Docker,k8s…ohmy
- 26. IwanttoKotlin
- 27. Jib
- 28. Lies? This is a build thing for us (GitLab) Scanning all the items
- 29. Wins? Maven, Gradle & JibCore
- 30. Oddsandends? Testing thoughts • Run all tests all the time • Mock sparingly (Mockk & Wirework) clikt is amazeballs
- 31. Wrapup Micronaut has served us well • Future proof & easy to work with • Do not jump to it, solutions like Micronaut for Spring Thanks to Jib, now you too can be a SRE