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Backend/Dockerfile

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Docker
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# Stage 1: Build the application
FROM maven:3.9.6-eclipse-temurin-17-alpine AS builder
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# Set the working directory
WORKDIR /home/container
# Copy the current directory contents into the container at /home/container
COPY . .
# Build the jar
RUN mvn package -q -Dmaven.test.skip -DskipTests -T2C
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# Stage 2: Create the final lightweight image
FROM adoptopenjdk:17-jre-hotspot-alpine3.14
# Set the working directory
WORKDIR /home/container
# Copy the built jar file from the builder stage
COPY --from=builder /home/container/target/Paste-Backend.jar .
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# Make port 3000 available to the world outside this container
EXPOSE 3000
ENV PORT=3000
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# Run the jar file
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CMD java -jar Paste-Backend.jar -Djava.awt.headless=true