Quarkus Remote debug with Kubernetes

readme.md

Ref: Quarkus remote dev in Docker containers (Update)

mvn quarkus:add-extension -Dextensions=quarkus-kubernetes
Add `quarkus.kubernetes.service-type=load-balancer` in application.properties
mvn clean package -Dquarkus.package.type=mutable-jar
docker build -f src/main/docker/Dockerfile.dev -t philipz/micrometer-quickstart:1.0.0-SNAPSHOT .
docker push philipz/micrometer-quickstart:1.0.0-SNAPSHOT
kubectl apply -f target/kubernetes/kubernetes.yml
mvn quarkus:remote-dev -Ddebug=false \
  -Dquarkus.package.type=mutable-jar \
  -Dquarkus.live-reload.url=http://localhost:31469 \
  -Dquarkus.live-reload.password=123

• https://github.com/jclingan/quarkus-remote-dev
• microsoft/vscode-java-debug#755

Dockerfile.dev

FROM adoptopenjdk/openjdk14-openj9:x86_64-alpine-jre-14_36.1_openj9-0.19.0
RUN apk add curl

ENV QUARKUS_LAUNCH_DEVMODE=true \
    JAVA_ENABLE_DEBUG=true

COPY target/quarkus-app/lib/ /deployments/lib/
COPY target/quarkus-app/*.jar /deployments/
COPY target/quarkus-app/app/ /deployments/app/
COPY target/quarkus-app/quarkus/ /deployments/quarkus/

CMD ["java", "-jar", \
  "-Dquarkus.http.host=0.0.0.0", \
  "-Djava.util.logging.manager=org.jboss.logmanager.LogManager", \
  "-Dquarkus.package.type=mutable-jar", \
  "-Dquarkus.live-reload.password=123", \
  "/deployments/quarkus-run.jar"]

Dockerfile.fast-jar

####
# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
#
# Before building the container image run:
#
# ./mvnw package -Dquarkus.package.type=fast-jar
#
# Then, build the image with:
#
# docker build -f src/main/docker/Dockerfile.fast-jar -t quarkus/micrometer-quickstart-fast-jar .
#
# Then run the container using:
#
# docker run -i --rm -p 8080:8080 quarkus/micrometer-quickstart-fast-jar
#
# If you want to include the debug port into your docker image
# you will have to expose the debug port (default 5005) like this :  EXPOSE 8080 5050
#
# Then run the container using :
#
# docker run -i --rm -p 8080:8080 -p 5005:5005 -e JAVA_ENABLE_DEBUG="true" quarkus/micrometer-quickstart-fast-jar
#
###
FROM registry.access.redhat.com/ubi8/ubi-minimal:8.3

ARG JAVA_PACKAGE=java-11-openjdk-headless
ARG RUN_JAVA_VERSION=1.3.8
ENV LANG='en_US.UTF-8' LANGUAGE='en_US:en'
# Install java and the run-java script
# Also set up permissions for user `1001`
RUN microdnf install curl ca-certificates ${JAVA_PACKAGE} \
    && microdnf update \
    && microdnf clean all \
    && mkdir /deployments \
    && chown 1001 /deployments \
    && chmod "g+rwX" /deployments \
    && chown 1001:root /deployments \
    && curl https://repo1.maven.org/maven2/io/fabric8/run-java-sh/${RUN_JAVA_VERSION}/run-java-sh-${RUN_JAVA_VERSION}-sh.sh -o /deployments/run-java.sh \
    && chown 1001 /deployments/run-java.sh \
    && chmod 540 /deployments/run-java.sh \
    && echo "securerandom.source=file:/dev/urandom" >> /etc/alternatives/jre/lib/security/java.security

# Configure the JAVA_OPTIONS, you can add -XshowSettings:vm to also display the heap size.
ENV JAVA_OPTIONS="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager -Dquarkus.package.type=mutable-jar -Dquarkus.live-reload.password=123"
# We make four distinct layers so if there are application changes the library layers can be re-used
COPY --chown=1001 target/quarkus-app/lib/ /deployments/lib/
COPY --chown=1001 target/quarkus-app/*.jar /deployments/
COPY --chown=1001 target/quarkus-app/app/ /deployments/app/
COPY --chown=1001 target/quarkus-app/quarkus/ /deployments/quarkus/

EXPOSE 8080
USER 1001

ENTRYPOINT [ "/deployments/run-java.sh" ]

launch.json

// A launch configuration that compiles the extension and then opens it inside a new window
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
{
    "version": "0.2.0",
    "configurations": [
        {
            "preLaunchTask": "quarkus:dev",
            "type": "java",
            "request": "attach",
            "hostName": "localhost",
            "name": "Debug Quarkus application",
            "port": 5005
        },
        {
            "preLaunchTask": "quarkus:remote-dev",
            "type": "java",
            "request": "attach",
            "hostName": "localhost",
            "name": "Remote Debug Quarkus application",
            "port": 5005
        }
    ]
}

tasks.json

// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
{
	"version": "2.0.0",
	"tasks": [
		{
			"label": "quarkus:dev",
			"type": "shell",
			"command": "./mvnw quarkus:dev",
			"windows": {
				"command": ".\\mvnw.cmd quarkus:dev"
			},
			"isBackground": true,
			"problemMatcher": [
				{
					"pattern": [
						{
							"regexp": "\\b\\B",
							"file": 1,
							"location": 2,
							"message": 3
						}
					],
					"background": {
						"activeOnStart": true,
						"beginsPattern": "^.*Scanning for projects...*",
						"endsPattern": "^.*Quarkus .* started in .*\\. Listening on:*"
					}
				}
			]
		},
		{
			"label": "quarkus:remote-dev",
			"type": "shell",
			"command": "./mvnw quarkus:remote-dev -Ddebug=false -Dquarkus.package.type=mutable-jar -Dquarkus.live-reload.url=http://localhost:8080 -Dquarkus.live-reload.password=123",
			"windows": {
				"command": ".\\mvnw.cmd quarkus:dev -Ddebug=false -Dquarkus.package.type=mutable-jar -Dquarkus.live-reload.url=http://localhost:8080 -Dquarkus.live-reload.password=123"
			},
			"isBackground": true,
			"problemMatcher": [
				{
					"pattern": [
						{
							"regexp": "\\b\\B",
							"file": 1,
							"location": 2,
							"message": 3
						}
					],
					"background": {
						"activeOnStart": true,
						"beginsPattern": "^.*Scanning for projects...*",
						"endsPattern": "^.*Quarkus augmentation completed in *"
					}
				}
			]
		}
	]
}