diff --git a/Part3/Exercise10/Dockerfile b/Part3/Exercise10/Dockerfile_new
similarity index 100%
rename from Part3/Exercise10/Dockerfile
rename to Part3/Exercise10/Dockerfile_new
diff --git a/Part3/Exercise10/Dockerfile_old b/Part3/Exercise10/Dockerfile_old
new file mode 100644
index 0000000..85ba9c2
--- /dev/null
+++ b/Part3/Exercise10/Dockerfile_old
@@ -0,0 +1,8 @@
+FROM openjdk:8-oracle
+
+EXPOSE 8080
+WORKDIR /usr/src/app
+COPY pom.xml ./
+COPY . .
+RUN ./mvnw package
+CMD ["java", "-jar", "./target/docker-example-1.1.3.jar"]
diff --git a/Part3/Exercise10/sizes.txt b/Part3/Exercise10/sizes.txt
index de4bfce..6d2c960 100644
--- a/Part3/Exercise10/sizes.txt
+++ b/Part3/Exercise10/sizes.txt
@@ -1,2 +1,4 @@
+I used the spring-example-project from the material
+
 Before: 435MB
 After: 213MB