Create README and Dockerfile but not working because of Flyway migrations. TODO: run in Testcontainers

Dockerfile

@@ -0,0 +1,23 @@
+FROM ghcr.io/graalvm/jdk-community:23 AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+
+COPY mvnw .
+COPY .mvn ./.mvn
+
+COPY src ./src
+COPY openapi.yml .
+
+RUN ./mvnw -Pnative native:compile
+
+FROM alpine
+
+WORKDIR /app
+
+COPY --from=build /app/target/swisssign-challenge /app/swisssign-challenge
+
+EXPOSE 8080
+
+CMD ["./swisssign-challenge"]