anchor.diff:  
   # patternfly1
   RUN curl https://copr.fedoraproject.org/coprs/patternfly/patternfly1/repo/fedora-21/patternfly-patternfly1-fedora-21.repo > /etc/yum.repos.d/patternfly-patternfly1-fedora-21.repo
  +RUN curl http://www.graphviz.org/graphviz-rhel.repo > /etc/yum.repos.d/graphviz-rhel.repo
   
   # solve dependencies
   RUN yum -y upgrade && yum install -y \
  
positive.code: # 	docker ps -l --> PORTS
  # 
  # 4. Access it
  # Visit <DOCKER_HOST:PORTS> on your web browser
  # 
  # 
  
  FROM fedora:21
  MAINTAINER Zhikun Lao <zlao@redhat.com>
  
negative.code: python-devel \
  python-setuptools \
  python-pip swig \
  openldap-devel \
  krb5-devel \
  koji \
  patternfly1 \
  vim-enhanced \
  'graphviz*' \
  libxml2 \
  libxslt \
  libxml2-devel \
  libxslt-devel \
  # openssh-server \
  net-tools \
  ; yum clean all
  
  RUN echo "123" | passwd root --stdin
  
  COPY requirements /tmp/requirements/
  RUN pip install -r /tmp/requirements/devel.txt
  
  # RUN echo "Port 22" >> /etc/ssh/sshd_config
  # RUN echo "ListenAddress 0.0.0.0" >> /etc/ssh/sshd_config
  # RUN ssh-keygen -A
  # RUN systemctl enable sshd.service
  
  # EXPOSE 8000 22
  EXPOSE 8000
  
  CMD ["/bin/bash"]