Dockerfile

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## run Maven build in Docker image layer and cache dependencies
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FROM maven:3-jdk-11 as builder
# setup base dir
WORKDIR /usr/src/app
# copy files from project
COPY pom.xml pom.xml
COPY package.json package.json
COPY webpack.config.js webpack.config.js
COPY .env .env
COPY src/ src/
# run maven build and cache dependencies
#RUN mvn dependency:resolve-plugins dependency:resolve clean package -DskipTests -Dhttps.protocols=TLSv1.1,TLSv1.2 --activate-profiles !default
RUN --mount=type=cache,target=/root/.m2 mvn -DskipTests -Dmaven.test.skip clean package

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## create another image layer and run the app that was built
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FROM openjdk:8-jdk as process-application
# Create app directory
WORKDIR /usr/src/app
# copy the built jar to the new image
COPY --from=builder /usr/src/app/target/camunda-demo-reactjs.jar ${WORKDIR}
# run the application
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/usr/src/app/camunda-demo-reactjs.jar"]