FROM frekele/ant:1.10.3-jdk8 as BUILD RUN mkdir /usr/build COPY src /usr/build/src COPY etc /usr/build/etc COPY war /usr/build/war COPY VERSION /usr/build RUN cd /usr/build/etc/build/ RUN ant -file /usr/build/etc/build/build.xml war FROM tomcat:9.0 as TARGET COPY --from=BUILD /usr/build/build/draw.war /usr/local/tomcat/webapps/ EXPOSE 8080 CMD ["catalina.sh", "run"]