Add buildbot and docker code

docker/Dockerfile

@@ -0,0 +1,25 @@
+# vi:syntax=dockerfile
+FROM fedora:26
+MAINTAINER Daniele Viganò <daniele@vigano.me>
+
+RUN dnf install -y 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
+
+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"]

docker/copr

@@ -0,0 +1,6 @@
+[copr-cli]
+login = <login>
+username = <username>
+token = <token>
+copr_url = https://copr.fedorainfracloud.org
+# expiration date: 2018-04-04