DO IT IN CODE (NOT YAML)! Fedor Korotkov Viktor Gamov @fedor - - PowerPoint PPT Presentation

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DO IT IN CODE (NOT YAML)! Fedor Korotkov Viktor Gamov @fedor - - PowerPoint PPT Presentation

Jan 18, 2023 112 likes •442 views

DO IT IN CODE (NOT YAML)! Fedor Korotkov Viktor Gamov @fedor @gamussa Copenhagen Denmark MEME REVIEW Sarcastic View on Existential Problems with YAML bash ??? YAML A BIT MORE SERIOUS NOW Sarcastic View on the Real Problems with YAML

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Copenhagen Denmark

DO IT IN CODE (NOT YAML)! Fedor Korotkov Viktor Gamov

@fedor @gamussa

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MEME REVIEW

Sarcastic View on Existential Problems with YAML

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bash YAML ???

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A BIT MORE SERIOUS NOW

Sarcastic View on the Real Problems with YAML

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  • Initial Release in 2001
  • Originally Yet Another Markup Language
  • Repurposed as YAML Ain't Markup Language
  • From Wiki: “commonly used for configuration files”
  • End goal is to declare something
  • YAML is not going anywhere any time soon

WHY YAML IN THE FIRST PLACE

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YAML IS TYPELESS

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json-schema.org

THERE IS A SCHEMA THOUGH

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INTELLIJ SUPPORTS JSON SCHEMAS FOR YAML

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YAML IS GREAT

but for small things

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EVOLUTION OF YAML IN A COMPANY

SCRIPTS NO YAML ANSIBLE YAML HELM YAML KOTLIN DSL

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Photo caption

KUBERNETES

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image source: Janakiram MSV

KUBERNETES ARCHITECTURE

Actually JSON

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  • How to avoid copy-pasting?
  • How to provide primitives?
  • How to allow customization for teams?
  • How to test incremental changes?
  • Some tools to analyze current state of clusters

THINGS TO THINK ABOUT YAML FOR K8S AT SCALE

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INGRESS EXAMPLE

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github.com/fkorotkov/k8s-kotlin-dsl

KOTLIN DSL FOR KUBERNETES

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HOW IT WORKS

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  • Generates DSLs from fabric8 types
  • Generates fabric8 types from deployed CRDs 😆

DSL GENERATION

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Confluent Operator Architecture

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KOTLIN POWER: BUILDERS

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KOTLIN POWER: BUILDERS

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KOTLIN POWER: EXTENSION FUNCTIONS

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KOTLIN POWER: EXTENSION FUNCTIONS

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USE CASES

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DEMO

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#KotlinConf

THANK YOU AND REMEMBER TO VOTE

Fedor Korotkov @fedor Viktor Gamov @gamussa