Dockerfile for sample java programs

IbkWilliams1 · web-flow · commit dccb06758aa0 · 2025-04-18T16:32:45.000+01:00
diff --git a/Dockerfile b/Dockerfile
@@ -0,0 +1,28 @@
+# Stage 1: Build the application
+FROM maven:3.8.5-eclipse-temurin-11 AS build
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy only the module-specific files
+ARG module
+COPY $module/pom.xml ./pom.xml
+COPY $module/src ./src
+
+# Build the application
+RUN mvn clean package -DskipTests
+
+# Stage 2: Package the application in a lightweight runtime
+FROM openjdk:11-jre-slim
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the JAR file from the build stage
+COPY --from=build /app/target/*.jar ./app.jar
+
+# Expose the application port (if applicable)
+EXPOSE 8080
+
+# Command to run the application
+CMD ["java", "-jar", "app.jar"]
