All Things Serverless: Kotlin, Kafka and Stream Processing

A presentation at Devoxx Poland in August 2021 in Kraków, Poland by Viktor Gamov

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THE CLOUD CONNECTIVITY COMPANY Serverless Kotlin and Apache Ka ka® Viktor Gamov | @gamussa August 2021 f f THE CLOUD CONNECTIVITY COMPANY Kong Con idential

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What’s Serverless OH: It’s just someone’s else computer © @gamussa | @thekonginc

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@gamussa | @thekonginc

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★gamov.dev/twitter ★gamov.dev/telegram ★gamov.dev/youtube @gamussa | @thekonginc

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@gamussa | @thekonginc

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★ka kainaction.org ★Use code ka kaa35 ★Release - Fall 2021 f f @gamussa | @thekonginc

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Serverless = Demand-Driven Infrastructure @gamussa | @thekonginc

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Serverless = Demand-Driven Infrastructure ● Operational Model for Cloud Native / 12 Factor @gamussa | @thekonginc

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Serverless = Demand-Driven Infrastructure ● Operational Model for Cloud Native / 12 Factor ● Cloud: Pay for what you use @gamussa | @thekonginc

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Serverless = Demand-Driven Infrastructure ● Operational Model for Cloud Native / 12 Factor ● Cloud: Pay for what you use ● On-Prem: Return unused resources to a “trough” for… @gamussa | @thekonginc

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Portable Serverless @gamussa | @thekonginc

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Portable Serverless ● Works on my machine and yours and CI (Testcontainers) @gamussa | @thekonginc

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Portable Serverless ● Works on my machine and yours and CI (Testcontainers) ● Works on your own infrastructure (Kubernetes) @gamussa | @thekonginc

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Portable Serverless ● Works on my machine and yours and CI (Testcontainers) ● Works on your own infrastructure (Kubernetes) ● Works on managed serverless clouds (Cloud Run, Con uent Cloud) fl @gamussa | @thekonginc

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Goal: Stackover low Question Stream Processor Transform Question Stream stackoverflow-to-ws-x5ht4amjia-uc.a.run.app SUM(favorite_count) { COUNT(tag) “url”: URL, “title”: String, “body”: String, “favorite_count”: Int, “view_count”: Int, “tags”: Array<String> } f @gamussa | @thekonginc Stream Viewer

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Tools we use • gcloud • ccloud • jq • Spring Boot @gamussa | @thekonginc

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https://gamov.dev/serverless-kotkaf @gamussa | @thekonginc

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https://gamov.dev/kong-krakow @gamussa | @thekonginc

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As Always Have A Nice Day Viktor Gamov @gamussa | @thekonginc