Add "VOLUME /root" for jenkins-slave
Add "VOLUME /root" for jenkins-slave

jakirkham/dockerfiles,adammcarth/dockerfiles,pmav99/dockerfiles,pmav99/dockerfiles,atyenoria/dockerfiles,atyenoria/dockerfiles,pmav99/dockerfiles,adammcarth/dockerfiles,pmav99/dockerfiles,jakirkham/dockerfiles,jakirkham/dockerfiles,jakirkham/dockerfiles,adammcarth/dockerfiles,atyenoria/dockerfiles,jakirkham/dockerfiles,atyenoria/dockerfiles,adammcarth/dockerfiles