Fix issue #848: A Conda related error is thrown during a Docker build of nbviewer. (#849)

* 	modified:   Dockerfile

*  On branch conda-version
	modified:   Dockerfile

* 	modified:   Dockerfile

* 	modified:   Dockerfile

* 	modified:   Dockerfile

* 	modified:   Dockerfile

* 	modified:   Dockerfile

* 	modified:   Dockerfile

* 	new file:   Makefile

* Image builds after removing update line.
	modified:   Dockerfile
	modified:   Makefile

* 	modified:   Dockerfile

* 	modified:   Makefile

* Fix issue 848: A Conda related error is thrown during a Docker build of
nbviwer.
	modified:   Dockerfile

* Add libgnutls28-dev as suggested in
#849 (comment)
	modified:   .travis.yml

* Add default CMD rather than Dokku CMD.
	modified:   Dockerfile

* 	deleted:    Makefile

Author: Don Morehouse

.travis.yml

@@ -9,7 +9,7 @@ python:
 
 before_install:
 - sudo apt-get update
-- sudo apt-get install -qq libzmq3-dev pandoc libcurl4-gnutls-dev libmemcached-dev
+- sudo apt-get install -qq libzmq3-dev pandoc libcurl4-gnutls-dev libmemcached-dev libgnutls28-dev
 - pip install --upgrade setuptools pip
 - pip install -r requirements-dev.txt
 

Dockerfile

@@ -9,11 +9,11 @@ RUN apt-get update && \
     bzip2 \
     ca-certificates
 
-ENV MINICONDA_VERSION 4.5.4
+ENV MINICONDA_VERSION 4.7.10
 ENV PATH=/opt/conda/bin:$PATH
 RUN cd /tmp && \
     curl -sSL https://repo.continuum.io/miniconda/Miniconda3-${MINICONDA_VERSION}-Linux-x86_64.sh -o /tmp/miniconda.sh && \
-    echo "a946ea1d0c4a642ddf0c3a26a18bb16d *miniconda.sh" | md5sum -c - && \
+    echo "1c945f2b3335c7b2b15130b1b2dc5cf4 *miniconda.sh" | md5sum -c - && \
     /bin/bash miniconda.sh -f -b -p /opt/conda && \
     rm miniconda.sh && \
     /opt/conda/bin/conda config --system --prepend channels conda-forge && \
@@ -80,4 +80,5 @@ WORKDIR /srv/nbviewer
 EXPOSE 8080
 USER nobody
 
-CMD ["python", "-m", "nbviewer", "--port=8080"]
+EXPOSE 9000
+CMD ["python", "-m", "nbviewer", "--port=8080"]