untested, might work, might not

Dockerfile

@@ -0,0 +1,30 @@
+# Stage 1: Build the application
+FROM maven:3.9.6-eclipse-temurin-17-alpine AS builder
+
+# 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
+
+# Stage 2: Create the final lightweight image
+FROM eclipse-temurin:17.0.11_9-jre-focal
+
+# Set the app to be in production mode
+ENV ENVIRONMENT=production
+
+# Set the working directory
+WORKDIR /home/container
+
+# Copy the built jar file from the builder stage
+COPY --from=builder /home/container/target/PIA-Servers.jar .
+
+# Make port 80 available to the world outside this container
+EXPOSE 80
+ENV PORT=80
+
+# Run the jar file
+CMD java -jar PIA-Servers.jar -Djava.awt.headless=true