Adds Docker file and Woodpecker integration

Dockerfile

@@ -0,0 +1,27 @@
+FROM amazoncorretto:21-alpine-jdk as build
+
+LABEL maintainer="Alex Arbit <aarbit@gmail.com>"
+
+WORKDIR /app
+
+COPY build.gradle.kts .
+COPY gradlew .
+COPY gradlew.bat .
+COPY settings.gradle.kts .
+COPY gradle ./gradle
+COPY src ./src
+
+RUN apk --no-cache add gradle
+
+RUN gradle bootJar
+
+RUN ls -al
+RUN ls -al /
+
+FROM amazoncorretto:21-alpine-jdk
+
+COPY --from=build /app/build/libs/*.jar app.jar
+RUN ls -al
+EXPOSE 8080
+
+ENTRYPOINT ["java","-jar","app.jar"]