FROM maven:3.9.4-eclipse-temurin-11 AS builder
WORKDIR /workdir/server

# Add Google's fast Maven mirror for better download speeds in Asia
RUN mkdir -p /root/.m2
RUN echo '<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd"><mirrors><mirror><id>google-maven</id><name>Google Maven Central</name><url>https://maven-central.storage-download.googleapis.com/maven2/</url><mirrorOf>central</mirrorOf></mirror></mirrors></settings>' > /root/.m2/settings.xml

RUN mvn -version
COPY pom.xml /workdir/server/pom.xml

COPY src /workdir/server/src
RUN mvn package -Dmaven.test.skip=true -B
RUN ls -la target/

FROM eclipse-temurin:11-jre-focal

EXPOSE 8080
VOLUME /tmp
COPY --from=builder /workdir/server/target/*.jar /app/app.jar
ENTRYPOINT ["java","-jar","/app/app.jar"]