Added Dockerfile

Dockerfile

@@ -0,0 +1,7 @@
+FROM openjdk:15-jdk-alpine
+RUN addgroup -S spring && adduser -S spring -G spring
+USER spring:spring
+ARG JAR_FILE=build/libs/*.jar
+COPY ${JAR_FILE} app.jar
+EXPOSE 8080
+ENTRYPOINT ["java","-jar","/app.jar"]

README.md

@@ -7,4 +7,14 @@
 # Usage
 
 - Compile the application
-- Overwrite the configuration using a custom `application.yml` file
+- Overwrite the configuration using a custom `application.yml` file
+
+# Docker
+```bash
+# Run the following commands to build a docker image
+./gradlew build
+docker build -t repository/tag .
+
+# Map a custom application.yml into /config and a news folder to /news. For example:
+docker run -p 8080:8080 -v path/to/news:/news -v path/to/src/main/resources:/config repository/tag 
+```