Add rrsync sidecar docker image - #315

Add rrsync sidecar docker image#315

mwestphall wants to merge 2 commits into

opensciencegrid:mainopensciencegrid/images:mainfrom

mwestphall:INF-3810-artifacts-server-rsync-sidecarmwestphall/images:INF-3810-artifacts-server-rsync-sidecarCopy head branch name to clipboard