Build and containerize Spring Music

Build, containerize and run Spring Music example with in-memory SQL H2 Database. WIP.

Clone repo and build jar

git clone https://github.com/cloudfoundry-samples/spring-music.git

./gradlew clean assemble

This will build the example application and create a jar file in : build/libs. A 62.5MB jar file in that directory is called spring-music-1.0.jar by default.

Containerize with pack CLI

Set up pack CLI

brew install buildpacks/tap/pack
pack builder suggest
pack config default-builder paketobuildpacks/builder:tiny

Containerize Spring Music

pack build spring-music

Run Spring Music locally

Run from jar

$ java -jar build/libs/spring-music.jar

To run with a specific Spring profile:

java -jar -Dspring.profiles.active=<profile> build/libs/spring-music.jar

Run with docker

docker run --rm -p 8080:8080 spring-music

Hit the app from a web browser:

http://localhost:8080/

Spring Boot Actuator endpoints are available at /actuator, for example:

http://localhost:8080/actuator/health

To see all actuator endpoints, try:

http://localhost:8080/actuator/mappings

Notes and References

• Spring Music git repo: https://github.com/cloudfoundry-samples/spring-music
• Buildpacks and pack cli: https://buildpacks.io/
• Set up backing services (e.g. db) with: https://servicebinding.io/

Kf on GCP https://cloud.google.com/migrate/kf/docs/2.11/how-to/spring-music