This automates the network setup that I did manually
in http://gerrit.cloudera.org:8080/12189
After running the script it should be possible to
run "./buildall.sh -format -testdata" to load
test data with the right hostnames, then
"start-impala-cluster.py --docker_network=network-name"
to run a dockerised minicluster.
Change-Id: Icb4854aa951bcad7087a9653845b22ffd862057d
Reviewed-on: http://gerrit.cloudera.org:8080/12452
Reviewed-by: Philip Zeyliger <philip@cloudera.com>
Tested-by: Tim Armstrong <tarmstrong@cloudera.com>