feat(docker): Add port exposed in dockerfiles

Dockerfile

@@ -4,4 +4,5 @@ ARG CREDENTIALS=service-account-file.json
 COPY ${JAR_FILE} app.jar
 COPY ${CREDENTIALS} service-account-file.json
 ENV GOOGLE_APPLICATION_CREDENTIALS=service-account-file.json
+EXPOSE 8080
 ENTRYPOINT ["java","-jar","/app.jar"]
\ No newline at end of file

Dockerfile-dev

@@ -2,4 +2,5 @@ FROM google/cloud-sdk
 RUN apt-get install openjdk-11-jdk
 ARG JAR_FILE=target/*-spring-boot.jar
 COPY ${JAR_FILE} app.jar
+EXPOSE 8080
 ENTRYPOINT ["java","-jar","/app.jar"]
\ No newline at end of file