improve Dockerfile

- Reduce size of context being sent
- Use requirements.txt for Python installation
- Update Python requirements to match what is being installed

.dockerignore

@@ -1,2 +1,4 @@
 matlab
 workspace
+python/.tox
+.git

Dockerfile

@@ -14,18 +14,20 @@ RUN apt-get update && \
         python3-dev \
         python3-pip \
         python3-setuptools \
+        python3-wheel \
         python3-tk \
         && \
 	apt-get clean && \
 	rm -rf /var/lib/apt/lists
 
-# get and install tools for python
-RUN pip3 install --upgrade pip
-RUN pip install numpy scipy matplotlib notebook pandas sympy nose scikit-learn scikit-image h5py sureal meson
-
 # retrieve source code
 COPY . /vmaf
 
+# install python requirements
+RUN pip3 install --upgrade pip
+RUN pip3 install --no-cache-dir meson
+RUN pip3 install --no-cache-dir -r /vmaf/python/requirements.txt
+
 # setup environment
 ENV PYTHONPATH=/vmaf/python/src:/vmaf:$PYTHONPATH
 ENV PATH=/vmaf:/vmaf/src/libvmaf:$PATH

python/requirements.txt

@@ -1,9 +1,9 @@
-numpy
-scipy>=0.17.1
-matplotlib>=2.0.0
-pandas>=0.19.2
-scikit-learn>=0.18.1
-scikit-image>=0.13.1
+numpy>=1.18.2
+scipy>=1.4.1
+matplotlib>=3.2.1
+pandas>=1.0.3
+scikit-learn>=0.22.2
+scikit-image>=0.16.2
 h5py>=2.6.0
-sureal>=0.1.0
+sureal>=0.4.2
 dill>=0.3.1