anchor.diff:  WORKDIR /opt/TangoService/Tango
   RUN mkdir -p volumes
   
  -# Define additional metadata for our image.
  -VOLUME /var/lib/docker
  -
   # Create virtualenv to link dependancies
  -RUN pip install virtualenv && virtualenv .
  +RUN pip3 install virtualenv && virtualenv .
   # Install python dependancies
  -RUN pip install -r requirements.txt
  +RUN pip3 install -r requirements.txt
   
   RUN mkdir -p /var/log/docker /var/log/supervisor
   
  
positive.code: 	git \
  	vim \
  	supervisor \
  	python-pip \
  	python-dev \
  	build-essential \
  	tcl8.5 \
  	wget \
  
negative.code:  && rm -rf /var/lib/apt/lists/*
  
  # Install Redis
  # RUN wget http://download.redis.io/releases/redis-stable.tar.gz && tar xzf redis-stable.tar.gz
  # WORKDIR /opt/redis-stable
  # RUN make && make install
  
  WORKDIR /opt/TangoService/Tango/
  
  # Install Docker from Docker Inc. repositories.
  