Update fedora31 container

config/Dockerfiles/fedora31/Dockerfile

@@ -5,16 +5,16 @@ LABEL description "This container will verify linchpin works under Fedora-30"
 ENV HOME=/root
 WORKDIR $HOME
 
-RUN dnf -y install python2 
-#RUN /usr/bin/python --version
-RUN ln -s /usr/bin/python2.7 /usr/bin/python
-
+RUN dnf -y install python2
 RUN dnf -y install python-pip ansible curl gcc python-devel \
                    openssl-devel redhat-rpm-config file \
                    openssh \
                    python-krbV make libxslt-python krb5-workstation jq buildah \
                    git \
-    && dnf clean all; 
+    && dnf clean all;
+
+RUN pip install -U setuptools; \
+    pip install -U pygithub;
 
 RUN export GIT_PYTHON_GIT_EXECUTABLE=/usr/bin/git
 
@@ -23,8 +23,6 @@ RUN curl -o /etc/yum.repos.d/beaker-client.repo \
     dnf -y install beaker-client; \
     dnf clean all
 
-RUN pip install -U pip;
-
 # /workdir should include the source code of linchpin
 VOLUME [ "/workdir" ]
-CMD ["sh", "-c", "tail -f /dev/null"]
+ENTRYPOINT ["tail", "-f", "/dev/null"]