adding examples Dockerfiles

Author: vsoch

examples/docker/.dockerignore

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+examples/*
+examples
+build
+*.simg
+*.img
+dist
+*.egg.info

examples/docker/Dockerfile

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+FROM continuumio/miniconda3
+
+# docker build -t vanessa/singularity-python .
+
+ENV PATH /opt/conda/bin:$PATH
+LABEL maintainer [email protected]
+
+RUN apt-get update && apt-get install -y git && \
+    /opt/conda/bin/conda install -y numpy scikit-learn cython pandas
+
+WORKDIR /opt
+RUN git clone -b development https://www.github.com/vsoch/singularity-python
+WORKDIR singularity-python
+RUN /opt/conda/bin/pip install setuptools && \
+    /opt/conda/bin/pip install -r requirements.txt && \
+    /opt/conda/bin/pip install pyasn1==0.4.1 && \
+    /opt/conda/bin/python setup.py sdist && \
+    /opt/conda/bin/python setup.py install

examples/docker/Dockerfile.shub

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+FROM vanessa/singularity-python:2.4.1
+LABEL VERSION 2.4.1
+CMD ["/opt/conda/bin/shub"]

examples/docker/Dockerfile.sregistry

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+FROM vanessa/singularity-python:2.4.1
+LABEL VERSION 2.4.1
+CMD ["/opt/conda/bin/sregistry"]

examples/docker/README.md

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+# Docker images
+
+These docker images are meant to provide a client for [Singularity Hub](Dockerfile.shub)
+and [Singularity Registry](Dockerfile.sregistry), respectively. These images are provided on [Docker Hub](https://hub.docker.com/r/vanessa/singularity-python/).
+
+
+## Singuarity Python Base
+
+**build**
+```
+docker build -t vanessa/singularity-python .
+docker tag vanessa/singularity-python vanessa/singularity-python:2.4.1
+docker push vanessa/singularity-python:2.4.1
+```
+
+## Singularity Client
+
+**build**
+```
+docker build -f Dockerfile.shub -t vanessa/singularity-python:shub-2.4.1 .
+docker push vanessa/singularity-python:shub-2.4.1
+```
+
+**usage**
+```
+docker run vanessa/singularity-python:shub-2.4.1
+```
+
+## Singularity Registry Client
+
+**build**
+```
+docker build -f Dockerfile.sregistry -t vanessa/singularity-python:sreg-2.4.1 .
+docker push vanessa/singularity-python:sreg-2.4.1
+```
+
+**usage**
+```
+docker run vanessa/singularity-python:sreg-2.4.1
+```