Add Dockerfile for F27

docker/Dockerfile.f27

@@ -0,0 +1,27 @@
+# vi:syntax=dockerfile
+FROM fedora:27
+MAINTAINER Daniele Viganò <daniele@vigano.me>
+
+RUN dnf install -y sudo tar bzip2 git python3-pip mock copr-cli && \
+    dnf clean all
+# Use a Twisted binary wheel to avoid too many dependencies
+RUN pip3 install https://daniele.vigano.me/files/pypi/Twisted-17.9.0-cp36-cp36m-linux_x86_64.whl \
+                 buildbot-worker
+
+RUN useradd -u 1003 builder && \
+    usermod -a -G mock builder
+
+RUN echo "builder ALL=(ALL) NOPASSWD: /usr/bin/dnf" >> /etc/sudoers
+
+USER builder
+ENV HOME /home/builder
+WORKDIR ${HOME}
+
+COPY copr $HOME/.config/copr
+
+RUN buildbot-worker create-worker $HOME 172.17.0.1 docker work3rP@ss! && \
+    echo "Daniele Viganò <daniel@vigano.me>" > info/admin && \
+    echo "Docker running Fedora 26 (x86_64)" > info/host
+
+ENTRYPOINT ["/usr/bin/buildbot-worker"]
+CMD ["start", "--nodaemon"]