1 From Cloud-Native Java and with Love ❤ dn.dev/learn Hans-Peter Grahsl Developer Advocate Neha Gupta Associate Specialist Solution Architect

dn.dev/learn Hans-Peter Grahsl Developer Advocate @ Red Hat I’m an open-source enthusiast passionate about event-driven architectures, distributed stream processing systems and data engineering technologies. 🐦 Twitter: @hpgrahsl 📧 Email: hgrahsl@redhat.com 👋 Meet the Speakers 👋 Neha Gupta Associate Specialist Solution Architect I’m a App dev Specialist striving to make Open Source practical and workable for enterprises. Linkedin: linkedin.com/in/nehannn76 📧Email: nehgupta@redhat.com

dn.dev/learn Why Quarkus?

dn.dev/learn ● Startup overhead ○ # of classes, bytecode, JIT ● Memory overhead ○ # of classes, metadata, compilation 4 RSS Java Heap Metaspace Direct Code Internal Java in Containers

dn.dev/learn 5 µ µ µ µ µ µ µ µ µ µ µ µ µ µ µ µ Monolith Microservices λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ Functions Java beyond the Monolith

dn.dev/learn What is Quarkus?

dn.dev/learn Modern Java Stack Cloud Native (Micro)Services Serverless

dn.dev/learn ❤ Great Dev Experience

dn.dev/learn ❤ Great Dev Experience • live reload → don’t blink ;-) • many convenient dev services • hassle-free native executables

dn.dev/learn ❤ Imperative & Reactive • unified programming model • choose what best fits your use-case • combine both paradigms in same app

dn.dev/learn ❤ Containers First • optimized in disk size • faster startup times • lower mem/cpu usage

dn.dev/learn ❤ Containers First • optimized in disk size → small container images • faster startup times → instantaneous scale out • lower mem/cpu usage → higher deployment density

dn.dev/learn ❤ Kubernetes Native • metrics and health • debugging and tracing • config maps and secrets

dn.dev/learn ❤ Open Standards • CDI-based dependency injection • REST endpoints with JAX-RS • persistence with JPA annotations • JTA transaction boundaries … and many more!

dn.dev/learn On the shoulders of Giants et al.

dn.dev/learn How does Quarkus work?

dn.dev/learn Traditional vs. Quarkus Build Time Runtime Runtime Build Time

dn.dev/learn do more at build time work less at runtime

dn.dev/learn 2 Runtime Targets Build Time Native Executable JVM

dn.dev/learn Live Coding

dn.dev/learn https://code.quarkus.io

dn.dev/learn Free e-book

dn.dev/learn Start exploring in the OpenShift Sandbox. Learn containers, Kubernetes, and OpenShift in your browser. developers.redhat.com/developer-sandbox Try Red Hat's products and technologies without setup or configuration.

dn.dev/learn Thank you!

dn.dev/learn Join Red Hat Developer. Build here. Go anywhere. facebook.com/RedHatDeveloper youtube.com/RedHatDevelopers twitter.com/rhdevelopers linkedin.com/showcase/red-hat-developer

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