Dockerfile installs maven

  maven
RUN wget http://apache-mirror.rbc.ru/pub/apache/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz
RUN tar xzvf apache-maven-3.3.9-bin.tar.gz
RUN cp -R apache-maven-3.3.9 /usr/local/bin
RUN export PATH=apache-maven-3.3.9/bin:$PATH
RUN export PATH=/usr/local/bin/apache-maven-3.3.9/bin:$PATH
RUN ln -s /usr/local/bin/apache-maven-3.3.9/bin/mvn /usr/local/bin/mvn
#RUN ls -l /usr/local/bin
RUN echo $PATH