Merge pull request #100 from rootfs/base-image

switch to centos base image

deploy/cephfs/docker/Dockerfile

@@ -1,14 +1,11 @@
-FROM ubuntu:16.04
+FROM centos:7
 LABEL maintainers="Kubernetes Authors"
 LABEL description="CephFS CSI Plugin"
 
 ENV CEPH_VERSION "mimic"
-
-RUN apt-get update && apt-get install -y wget && \
-    wget -q -O- 'https://download.ceph.com/keys/release.asc' | apt-key add - && \
-    echo "deb http://download.ceph.com/debian-$CEPH_VERSION/ xenial main" | tee /etc/apt/sources.list.d/ceph-$CEPH_VERSION.list && \
-    apt-get update && apt-get install -y kmod ceph-common ceph-fuse attr --no-install-recommends && \
-    rm -rf /var/lib/apt/lists/*
+RUN yum  install -y centos-release-ceph && \
+    yum install -y kmod ceph-common ceph-fuse attr && \
+    yum clean all
 
 COPY cephfsplugin /cephfsplugin