Simple HelidonSE Application with Gradle and Docker support

A simple service to greet you.

Inspired by

1. https://medium.com/helidon/helidon-injection-4f3321ee7231
2. https://github.com/helidon-io/helidon-examples/blob/helidon-4.x/examples/quickstarts/helidon-quickstart-inject/src/test/resources/application-test.yaml

Examples:

Get default greeting message:

http://localhost:8080/simple-greet

curl -w "\n" http://localhost:8080/simple-greet

http://localhost:8080/greet

curl -w "\n" http://localhost:8080/greet

Get greeting message for Joe:

http://localhost:8080/greet/Joe

curl -w "\n" http://localhost:8080/greet/Joe

Change greeting

curl -w "\n" -X PUT -d 'Howdy' http://localhost:8080/greet/greeting

Run using Gradle

./gradlew run -t

Semantic versioning

Plugin fr.brouillard.oss.gradle.jgitver

./gradlew version

./gradlew version | grep Version | awk '{ print $2 }'

Update version and add git tag

git tag 2026.03

Update dependencies

Plugin com.github.ben-manes.versions

./gradlew dependencyUpdates --no-parallel

Check dependencies

Plugin dependency-analysis-gradle-plugin

./gradlew buildHealth

Run docker image

docker run --rm -p 8080:8080 a002k/helidon-se

docker run -d --name helidon-se --rm -p 8080:8080 a002k/helidon-se

• -i Keep STDIN open even if not attached
• --rm Remove container after stop
• -d Detach mode, Run container in background and print container ID

and follow -f logs

docker logs -f helidon-se

to stop

docker stop helidon-se

Run docker image as docker-compose

docker compose run -d --name helidon-se --rm helidon-se

Use ./.env file or overwrite as

APP_GREETING=Greet docker compose up -d

and follow -f logs

docker compose logs -f helidon-se

to stop

docker compose down