docker setup

Dockerfile

@@ -0,0 +1,21 @@
+FROM maven:3.9.4-eclipse-temurin-21-alpine AS build
+LABEL authors="youhavetrouble"
+
+WORKDIR /app
+
+# Copy Maven wrapper and project files
+COPY . .
+
+# Build the JAR file
+RUN mvn clean package
+
+# Runtime image
+FROM eclipse-temurin:21-jre
+WORKDIR /app
+
+# Copy the built JAR from the build stage
+COPY --from=build /app/target/Inviter.jar Inviter.jar
+RUN chmod 755 Inviter.jar
+
+# Run the JAR file
+CMD ["java", "-jar", "Inviter.jar"]