FROM maven:3.6.3-jdk-13 as builder

WORKDIR /tmp

# Cache dependencies
COPY api/pom.xml .
RUN mvn verify clean --fail-never

COPY api/resources resources
COPY api/src src
COPY api/test test

RUN mvn package

FROM openjdk:13-alpine

ENV APPLICATION_USER ktor
RUN adduser -D -g '' $APPLICATION_USER

RUN mkdir /app
RUN chown -R $APPLICATION_USER /app

USER $APPLICATION_USER

COPY --from=builder /tmp/target/api-*-jar-with-dependencies.jar /app/notes-api.jar
WORKDIR /app

CMD ["java", "-server", "-XX:+UnlockExperimentalVMOptions", "-XX:InitialRAMFraction=2", "-XX:MinRAMFraction=2", "-XX:MaxRAMFraction=2", "-XX:+UseG1GC", "-XX:MaxGCPauseMillis=100", "-XX:+UseStringDeduplication", "-jar", "notes-api.jar"]