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Quarkus: Fast, Small, Innovative, and Native?

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http://bit.ly/quarkus

Link

@rafabene

rafael.benevides@oracle.com

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Rafael Benevides�

Cloud-Native Developer Advocate

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rafael.benevides@oracle.com

@rafabene

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Java Certifications:

SCJA / SCJP / SCWCD / SCBCD / SCEA

JBoss Certifications:

JBCD / JBCAA

Red Hat Certifications:

OpenShift / Containers / Ansible

Other Certifications:

SAP Netweaver / ITIL / IBM Software Quality

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https://developer.oracle.com

Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |

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https://cloudnative.oracle.com

Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |

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6

QUARKUS.IO

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2007

KVM

2009

DEVOPS

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$18,000 Sun Sparc App Server Box (4 CPUs, 2GB of RAM)

+ $60,000 BEA Weblogic

+ $92,000 Sun Spark DB Server Box (8 CPUs)

+ $243,000 Oracle RDBMS

+ $50,000 Symantec Visual Café for 10 developers

--------------------------------------------------

$463,000 (capex) + ~$80,000 annual maint (opex)

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Cost of a Java-based Web App circa 1999

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— nutrecht July 2018

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Meet Quarkus

Supersonic java

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Quark any of a number of subatomic particles carrying a fractional electric charge

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And "us"

(hardest problem in software)

WTF

is a

Quarkus ?

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Build a new Project

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mvn io.quarkus:quarkus-maven-plugin:1.1.1.Final:create

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Quarkus Build process

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  • Moved as much as possible to build phase
  • Minimized runtime dependencies
  • Maximize dead code elimination
  • Introduced clear metadata contracts
  • Spectrum of optimization levels

(all -> some -> no runtime reflection)

Optimizations benefit both GraalVM (SVM) and HotSpot

Framework Optimizations

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Build a native binary

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mvn clean package -Pnative

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GraalVM Limitations

  • Dynamic Class Loading
    • Deploy JARS, WARS at Runtime is impossible

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  • JVMTI, JMX + Other native VM interfaces
    • No Agents -> No JRebel, Byteman, profilers, tracers

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  • Others
    • Security Manager
    • finalize() (deprecated anyway)
    • InvokeDynamic and MethodHandler

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GraalVM Limitations

  • Reflection (LIMITED)
    • Requires registration
    • -H:ReflectionConfigurationFiles=/path/to/reflectconfig

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Build the Native Docker Image

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mvn package -Pnative \

-Dquarkus.native.container-build=true

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Enough love to go around.

developer

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Imperative and reactive

Serverless

Live reload

Microservices

Fat jars and native executables

Optimized for JAX-RS & JPA (Hibernate) …

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Connect to Database

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quarkus.datasource.driver=com.mysql.cj.jdbc.Driver

quarkus.hibernate-orm.dialect=org.hibernate.dialect.MySQL5Dialect

quarkus.datasource.url=jdbc:mysql://localhost:3306/quarkus

quarkus.datasource.username = rafael

quarkus.datasource.password = 123456

quarkus.hibernate-orm.log.sql=true

quarkus.hibernate-orm.database.generation=update

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Kubernetes Native

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Build the Image

eval $(minikube docker-env)

or

export DOCKER_HOST=tcp://192.168.100.100:2375

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docker build -f src/main/docker/Dockerfile.native -t myquarkus .

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Instantiate the Image

kubectl run myquarkus-app --image=meu-projeto --port=8080 --image-pull-policy=IfNotPresent

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kubectl expose deployment myquarkus-app --type=NodePort

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Access the application

curl $(minikube service myquarkus-app --url)/hello

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Or

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curl 192.168.100.100:$(kubectl get svc myquarkus-app -o=jsonpath='{.spec.ports[?(@.port==8080)].nodePort}')/hello

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Image:

quay.io/images/custservice:1.1.0

Replicas:

20

Labels:

customerservice=prod,ci_build=1213

ConfigMap:

cust_config

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Run them on Linux

Virtual

Physical

Private

Public

Oracle Linux

Node

Node

Node

Master

API Server

Dev

Ops

SCM�(Git/Svn)

CI/CD

Automation

Controllers

- Scheduler

- Replication

- Services

- Builds

- Routes

- Deployment

Kubernetes

Ingress Gateway

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10x smaller.

Up to 100x faster.

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@RAFABENE

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