Dockerfile

# Final running image
FROM eclipse-temurin:17-jre-alpine

WORKDIR /app

RUN mkdir -p /app/backend
COPY ./*.jar /app/backend/app.jar

# Environment variables
RUN --mount=type=secret,id=MONGO_USERNAME,mode=0444,required=true 
RUN --mount=type=secret,id=MONGO_PASSWORD,mode=0444,required=true 
RUN --mount=type=secret,id=MONGO_DATABASE,mode=0444,required=true 
RUN --mount=type=secret,id=MONGO_AUTH_DB,mode=0444,required=true

# Expose ports
EXPOSE 8080

CMD ["java", "-jar", "app.jar"]