testing: add Dockerfile based on ceph containers

Ceph containers [1] are built by the ceph team and for our purposes,
only lack build tools and Go making the delta we need to do smaller.

1: https://github.com/ceph/ceph-container

Signed-off-by: John Mulligan <jmulligan@redhat.com>

testing/containers/ceph/Dockerfile

@@ -0,0 +1,26 @@
+ARG CEPH_VERSION
+FROM ceph/daemon-base:latest-${CEPH_VERSION:-nautilus}
+
+ENV CEPH_VERSION=${CEPH_VERSION:-nautilus}
+
+RUN true && \
+    yum install -y git wget curl libcephfs-devel librados-devel librbd-devel /usr/bin/cc /usr/bin/c++ make && \
+    true
+
+ENV GOTAR=go1.12.17.linux-amd64.tar.gz
+RUN true && \
+    curl -o /tmp/${GOTAR} https://dl.google.com/go/${GOTAR} && \
+    tar -x -C /opt/ -f /tmp/${GOTAR} && \
+    rm -f /tmp/${GOTAR} && \
+    true
+
+ENV PATH="${PATH}:/opt/go/bin"
+ENV GOROOT=/opt/go
+ENV GO111MODULE=on
+ENV GOPATH /go
+WORKDIR /go/src/github.com/ceph/go-ceph
+VOLUME /go/src/github.com/ceph/go-ceph
+
+COPY micro-osd.sh /
+COPY entrypoint.sh /
+ENTRYPOINT ["/entrypoint.sh"]