Contêiner de singularidade

Question

Eu escrevi o seguinte recipiente de singularidade

BootStrap: docker
From: debian:stretch-backports

%help
  A container with 3d-dna

%post
  apt-get update && apt-get -y upgrade
  apt-get -y install \
    build-essential \
    wget \
    bzip2 \
    ca-certificates \
    libglib2.0-0 \
    libxext6 \
    libsm6 \
    libxrender1 \
    git 

  rm -rf /var/lib/apt/lists/*
  apt-get clean

  # download and install Miniconda
  echo 'export PATH=/opt/conda/bin:$PATH' > /etc/profile.d/conda.sh
  wget -c https://repo.continuum.io/miniconda/Miniconda2-latest-Linux-x86_64.sh
    /bin/bash Miniconda2-latest-Linux-x86_64.sh -b -p /opt/conda
    rm -rf Miniconda2-latest-Linux-x86_64.sh

  # add bioconda channels
  conda config --add channels defaults
  conda config --add channels conda-forge
  conda config --add channels bioconda
  conda update conda

  # install 3d-dna dependecies
  conda install lastz=1.0.4
  conda install openjdk=8.0.152 
  conda install gawk=4.2.1
  conda install coreutils=8.30
  conda install parallel=20180522
  conda install python=2.7
  conda install numpy=1.15.1
  conda install scipy=1.1.0
  conda install matplotlib=2.2.3

  # install 3d-dna
  git clone https://github.com/theaidenlab/3d-dna.git

%environment
  PATH=/opt/conda/bin:$PATH

Alguém poderia me mostrar como construir e acessar os scripts dentro da pasta 3d-dna?