Dockerfile
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FROM maven:3.9-eclipse-temurin-21 AS build
WORKDIR /src
# Copy pom first so Docker can cache dependencies.
COPY pom.xml .
RUN --mount=type=cache,target=/root/.m2 \
mvn -B -DskipTests dependency:go-offline
COPY src ./src
RUN --mount=type=cache,target=/root/.m2 \
mvn -B -DskipTests package
FROM eclipse-temurin:21-jre
WORKDIR /app
RUN useradd -r -u 1001 closure
COPY --from=build /src/target/*.jar /app/runtime.jar
USER closure
ENV CLOSURED_ROOT=/app
ENV CLOSURED_PORT=8080
ENV CLOSURED_WORKERS=2
EXPOSE 8080
ENTRYPOINT ["java", "-Xms256m", "-Xmx2g", "-jar", "/app/runtime.jar"]