jarrydk / quarkus-wildfly-faglig-fredag

Wildfly, Quarkus og brugen af specifikationer (Java EE 8)

Wildfly, Quarkus og brugen af specifikationer (Java EE 8)

Hvad skal jeg tale om

• Wildfly
• Microprofile
• Quarkus
  • Extensions
  • Maven
• ToDo gennemgang
  • MicroProfile Config
  • JAX-RS
  • Persistering af data
  • Sikkerhed
  • MicroProfile Health
  • MicroProfile Metrics
  • OpenAPI and SwaggerUI
• Bookstore gennemgang
  • Author JAX-RX + service
  • Book JAX-RX + extends PanacheEntity
  • Publisher RestController/RequestMapping (Spring) + service
  • Test @QuarkusTest
• Appendix

Wildfly

Wildfly

• JBoss EAP 7.1 (Wildfly 14)

• Java EE 8

• Jakarta EE 8

• Moduler

• beans.xml

Microprofile

Microprofile

Eclipse MicroProfile 3.2 is Now Available

Quarkus

Supersonic Subatomic Java

A Kubernetes Native Java stack tailored for OpenJDK HotSpot and GraalVM, crafted from the best of breed Java libraries and standards.

Quarkus

GraalVM

Dependency Injection

• Quarkus - Contexts and Dependency Injection

• Weld

• beans.xml vs. annotations

Extensions

• Sammenligning med Wildflys moduler

• Quarkus - Start coding with code.quarkus.io

Maven

./mvnw compile quarkus:dev

./mvnw clean package
java -jar target/quarkus-fagligfredag-demo-0.0.1-SNAPSHOT-runner.jar

./mvnw package -Pnative
./target/quarkus-fagligfredag-demo-0.0.1-SNAPSHOT-runner

ToDo gennemgang

Dette bliver en introduktion til Quarkus med udgangspunkt i en simpel ToDo applikation.

Vi ser på hvordan kode skrevet til Java EE 8 specifikation, kan laves om til Quarkus.

Vi vil se på disse punkter i gennemgangen

• Konfiguration af applikationen

• Rest service

• Persistering af data i database (PostgreSQL) med JPA (Hibernate)

• Tilføj sikkerhed til applikationen

• Tilføj Health

• Tilføj Metrics

• Tilføj OpenAPI (swagger)

Applikationen afvikler vi med Quarkus og Wildfly.

Koden vil blive startet fra

• Terminal

• Docker

• Kubernetes (minikube)

MicroProfile Config

PingResource

@ConfigProperty(name = "pingMessage", defaultValue = "pingMessage need config..")

• ENV

• Propeties

JAX-RS

@Path("todos")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)

Persistering af data

Hibernate

@Inject
EntityManager entityManager;

Wildfly - persistence.xml

<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
    http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
	version="2.1">

	<persistence-unit name="ToDoPU" transaction-type="JTA">
		<description>My ToDo entities</description>
 		<jta-data-source>jboss/datasources/ToDoDS</jta-data-source>
		<properties>
			<property name="hibernate.dialect"
				value="org.hibernate.dialect.PostgreSQL95Dialect" />
			<property name="hibernate.show_sql"
				value="false" />
			<property name="hibernate.format_sql"
				value="true" />
			<property name="javax.persistence.schema-generation.database.action"
				value="drop-and-create" />
			<property name="javax.persistence.validation.mode"
				value="NONE" />
		</properties>
	</persistence-unit>

</persistence>

Quarkus - application.properties

quarkus.datasource.url=jdbc:postgresql://PostgreSQLDemo:5432/hibernate_db
quarkus.datasource.driver=org.postgresql.Driver
quarkus.datasource.username=hibernate
quarkus.datasource.password=hibernate
quarkus.datasource.max-size=8
quarkus.datasource.min-size=2
quarkus.hibernate-orm.database.generation=drop-and-create
quarkus.hibernate-orm.log.sql=false

Sikkerhed

@Inject
Principal principal;

@Inject
JsonWebToken jwt;

export TOKEN="eyJraWQiOiIvcHJpdmF0ZUtleS5wZW0iLCJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.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.FYGtGIT_iU2hEF2F_XvjMXyCzCD7_Q4UXpNwhRJhpbRTqhFOeqQ-1yJllr6xs1oXH7OdRNovmqXjVZp3NEARwF7we-bm_h1TFPOQECeHGl8jvE7Ig9Cx0wL0QDxCUQKLQ1pOa9RSwy-_BkkJ0d3Nukn-Q871a6wm34syIWYB10KWWnm9CBRpeTRkA9YO-_xNhFqkmeDSkUfdHvoRbXbHEgg_TtB3_IOJp1xtC5xmrytm0Q-CmwdxnpHwAPfgVCJLPqg2bI_20_ESkKvLeMkFWTV3ReHSr4GNkEWOAcmCCajP9kizvftoPO2WyB0AkcdgzPLgW4_5D6Sd3L64ER8S9Q"

curl -v http://localhost:8080/todos \
	-H 'Accept: application/json' \
	-H 'Authorization: Bearer '$TOKEN'' \
	-H 'Content-Type: application/json' \
	-d '{"subject":"Hello from Quarkus","body":"Content","priority": 1,"importens": 10,"owner" : "Duke"}'

MicroProfile Health

@Health

curl -X GET \
	http://localhost:8080/health \
	-H 'Accept: application/json'

quarkus.io - Health Guide

MicroProfile Metrics

curl -X GET \
	http://localhost:8080/metrics/application \
	-H 'Accept: application/json'

quarkus.io - Metrics Guide

OpenAPI and SwaggerUI

Just add quarkus-smallrye-openapi as a dependency in pom.xml and Bob is your uncle.

<dependency>
	<groupId>io.quarkus</groupId>
	<artifactId>quarkus-smallrye-openapi</artifactId>
</dependency>

• OpenAPI

• swagger-ui

OpenAPI and Swagger-UI only works in dev and test mode.

./mvnw compile quarkus:dev

quarkus.io - OpenAPI SwaggerUI Guide

Bookstore gennemgang

Author JAX-RX + service

Book JAX-RX + extends PanacheEntity

Publisher RestController/RequestMapping (Spring) + service

Test @QuarkusTest

Appendix

export TOKEN="eyJraWQiOiIvcHJpdmF0ZUtleS5wZW0iLCJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.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.JTgLJ7hZbkorNEg0OTyNPNAQ8_7v23ElXX2oZNBWF-19I6k0BcnIPnydHs4Dylj3JsFtgeWSvhniv4dcEwBGphqLWKor_hG305Xv5YDiWvj0o-9xhhEDALRvO5ycjXwt69E8YN-YA-GdYgLyLhStSUZFjN3vMWQTO2U9UaO8jLcwZ239Z7rtw5XFy3vC9TxvDlGaPOiyBJSwagpi2oqIcdvlTHW6pB-J3lM0B5gheHlM2btHYnqFKsviCI5Jvo9TziM8Zm1rPi4xq0yZn8Es5zVLMvrOpji5pqlCC3TkSKSomnRCC3NFKLmxGCYYM_m9KRJWGbJCsmACY30ptM6o2A"

curl -v http://localhost:8080/todos \
	-H 'Accept: application/json' \
	-H 'Authorization: Bearer '$TOKEN'' \
	-H 'Content-Type: application/json' \
	-d '{"subject":"Hello from Quarkus","body":"Content","priority": 1,"importens": 10,"owner" : "Duke"}'

curl -v http://localhost:8080/todos \
	-H 'Accept: application/json' \
	-H 'Authorization: Bearer '$TOKEN'' \
	-H 'Content-Type: application/json' \
	-d '{"subject":"Hello from Quarkus 2","body":"Content 2","priority": 1,"importens": 10,"owner" : "Duke"}'

docker network inspect demo-net

docker network create demo-net

docker run --ulimit memlock=-1:-1 \
	-it --rm=true --memory-swappiness=0 \
	--name PostgreSQLDemo \
	--network demo-net \
	-e POSTGRES_USER=hibernate \
	-e POSTGRES_PASSWORD=hibernate \
	-e POSTGRES_DB=hibernate_db \
	-p 5432:5432 postgres:10.5

docker build -f src/main/docker/Dockerfile.native -t quarkus-fagligfredag-demo .

docker run -i --rm --name quarkus-fagligfredag --network demo-net -p 8080:8080 quarkus-fagligfredag-demo

Start postgres på minikube.

kubectl run postgresqldemo \
	--image=postgres:10.5 \
	--port=5432 \
	--env=POSTGRES_USER=hibernate \
	--env=POSTGRES_PASSWORD=hibernate \
	--env=POSTGRES_DB=hibernate_db \
	--image-pull-policy=IfNotPresent

kubectl expose deployment postgresqldemo --type=NodePort

Start quarkus-fagligfredag-demo på minikube.

kubectl run quarkus-fagligfredag-demo \
	--port=8080 \
	--image=quarkus-fagligfredag-demo:latest \
	--image-pull-policy=IfNotPresent

kubectl expose deployment quarkus-fagligfredag-demo --type=LoadBalancer	--name=quarkus-fagligfredag-demo-service

kubectl get all

kubectl delete deployment.apps/quarkus-fagligfredag-demo

minikube dashboard --url
minikube service pgadmin --url
minikube service postgresqldemo --url
minikube service quarkus-fagligfredag-demo-service --url

eval $(minikube docker-env)

eval $(minikube docker-env -u)