####

# This Dockerfile is used in order to build a container that runs the Spring Boot application

#

# Build the image with:

#

# docker build -f docker/Dockerfile -t springboot/sample-demo .

#

# Then run the container using:

#

# docker run -i --rm -p 8081:8081 springboot/sample-demo

####

FROM quay.io/devfile/maven:3.8.1-openjdk-17-slim

WORKDIR /build

# Build dependency offline to streamline build

COPY pom.xml .

RUN mvn dependency:go-offline

COPY src src

RUN mvn package -Dmaven.test.skip=true

# compute the created jar name and put it in a known location to copy to the next layer.

# If the user changes pom.xml to have a different version, or artifactId, this will find the jar

RUN grep version /build/target/maven-archiver/pom.properties | cut -d '=' -f2 >.env-version

RUN grep artifactId /build/target/maven-archiver/pom.properties | cut -d '=' -f2 >.env-id

RUN mv /build/target/$(cat .env-id)-$(cat .env-version).jar /build/target/export-run-artifact.jar

FROM openjdk:11-jdk

COPY --from=0 /build/target/export-run-artifact.jar /app/target/export-run-artifact.jar

EXPOSE 8081

ENTRYPOINT [ "java", "-jar", "/app/target/export-run-artifact.jar", "--server.port=8081" ]