Serverless Kotlin
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The document discusses serverless computing and Kotlin functions. It introduces Fn Project, an open source container-native platform for serverless/function-as-a-service (FaaS) computing. Fn Project supports multiple languages like Go, Java, Python, and Kotlin and can run on Kubernetes as well as cloud providers and on-premises. The document demonstrates how to write Kotlin functions that can be deployed to Fn Project and Exoscale, a European cloud provider that supports Fn Project.
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Serverless Kotlin
- 1. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Serverless Kotlin David Delabassée - Oracle @delabassee Nicolas Fränkel - Exoscale @nicolas_frankel October 2018
- 2. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, timing, and pricing of any features or functionality described for Oracle’s products may change and remains at the sole discretion of Oracle Corporation.
- 3. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. |
- 4. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | @delabassee from Belgium
- 5. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | @nicolas_frankel from France
- 6. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | • Simple, scalable and safe European alternative to the big cloud-computing players • Privacy-minded • Great support https://exoscale.com
- 7. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Serverless
- 8. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Function as a Service • Function • As a Service Small bits of code with a well defined job Easy to understand and maintain The system takes care of provisioning, scaling, patching, ... Each function can scale independently
- 9. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Serverless Servers “ ‘ Serverless ’ is just a name. We could have called it ‘ Jeff ’ ” - Paul Johnston https://serverless.zone/serverless-is-just-a-name-we-could-have-called-it-jeff-1958dd4c63d7
- 10. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Why Serverless? • No Server • Automatic Scaling • Only pay for what you use • Agility Management
- 11. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Open Source Container Native FaaS Platform Introducing Fn Project https://github.com/fnproject
- 12. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Introducing Fn Project Open Source Approachable Container based Platform independent Language independent Scheduler independent No lock-in Easy for new users More controls for advanced users Leverage Docker and its ecosystem Cloud, On-Perm, laptop Go, Java, Python, … K8S, ...
- 13. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Introducing Fn Function Code wrapped in a Container Image – Input from stdin Output to stdout Logs to stderr – or simply use an FDK! Fn handles everything else!
- 14. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Fn Architecture • Fn CLI • Fn FDK's • Local • Exoscale
- 15. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Polyglot • Go • Java • Python • JS • Rust • Ruby • … bring your own!
- 16. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Kotlin
- 17. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Kotlin “ Statically typed programming language for the JVM, Android, native and the browser ” https://kotlinlang.org/
- 18. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Kotlin - A Few Facts • Developed by JetBrains – Co-managed with Google – Supported by Pivotal for Spring/Boot • Open Source • Compiles to – JVM bytecode – JavaScript – (Native) • Lot of traction
- 19. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Kotlin - Features • Functional and object-oriented • Statically-typed • Null safety • No checked exceptions • Named & optional arguments • Lambdas • Java compatibility • And more...
- 20. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Kotlin – Killer Features • Extension methods • Extension properties
- 21. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Demo
- 22. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Wrap-up
- 23. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Fn • Container Native, Cloud Agnostic, Polyglot, Open Source FaaS Platform https://github.com/fnproject https://exoscale.com https://kotlinlang.org
- 24. Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | Merci! 24
Editor's Notes
- WORK IN PROGRESS
- 5 times surface, 4x population
- Let’s define FaaS Func : Single purpose Serverless: A category of software design where the abstraction layer for developers is at the application tier, above the OS, infra, and cloud IaaS API’s. In other words, developers never think about infrastructure. No complicated plumbing
- Functions as Unit of Billing
- Functions as Unit of Billing Just think about your code, not the infrastructure
- let’s look at Fn.
- Unit of design deployment, scaling and billing Or use an FDK!
- Small chunk of code wrapped into a container image
- + FDKs
- Kotlin