there misses some prerequired packages in the rally Dockerfile and amends this.
Change-Id: I142b5f4fc55fe358fb932db0102f53e62efda427
Signed-off-by: MatthewLi <matthew.lijun@huawei.com>
The "real" rally docker container will be built from the image'
created by this file. This Dockerfile should be used for creating
and uploading rally image with periodic jobs.
Change-Id: Id0d0c6d911a1893fe15dcb2cbd7df70b1597c2b8