Dockerfile for rbd k8s controller (centos)

Dockerfile

FROM centos

ARG KUBERNETES_VERSION=v1.10.4
ENV CENTOS_FRONTEND=noninteractive \
   container=docker \
   KUBERNETES_DOWNLOAD_ROOT=https://storage.googleapis.com/kubernetes-release/release/${KUBERNETES_VERSION}/bin/linux/amd64 \
   KUBERNETES_COMPONENT=kube-controller-manager
COPY ceph.repo /etc/yum.repos.d/ceph.repo
RUN set -x \
   && yum install -y epel-release \
   && yum install -y \
       ceph-common \
       curl \
   && yum clean all \
   && rm -rf /var/cache/yum \ 
   && curl -L ${KUBERNETES_DOWNLOAD_ROOT}/${KUBERNETES_COMPONENT} -o /usr/bin/${KUBERNETES_COMPONENT} \
   && chmod +x /usr/bin/${KUBERNETES_COMPONENT} \