Add ssh client and server to docker containers.

This will allow for future integration tests using ssh to localhost
from within docker containers running on Travis.

test/utils/docker/fedora-rawhide/Dockerfile

@@ -37,11 +37,18 @@ RUN dnf -y install \
     tar \
     unzip \
     which \
+    openssh-clients \
+    openssh-server \
     yum
 RUN localedef --quiet -c -i en_US -f UTF-8 en_US.UTF-8
 RUN /usr/bin/sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
 RUN mkdir /etc/ansible/
 RUN /usr/bin/echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
 VOLUME /sys/fs/cgroup /run /tmp
+RUN ssh-keygen -q -t dsa -N '' -f /etc/ssh/ssh_host_dsa_key
+RUN ssh-keygen -q -t rsa -N '' -f /etc/ssh/ssh_host_rsa_key
+RUN ssh-keygen -q -t rsa -N '' -f /root/.ssh/id_rsa
+RUN cp /root/.ssh/id_rsa.pub /root/.ssh/authorized_keys
+RUN for key in /etc/ssh/ssh_host_*_key.pub; do echo "localhost $(cat ${key})" >> /root/.ssh/known_hosts; done
 ENV container=docker
 CMD ["/usr/sbin/init"]