W/o this patch, Rabbitmq::Install::Rabbitmqadmin
sometimes fails to install the rabbitmqadmin script if
there are some connectivity (which is non-transient) errors.
The solution is to add retries for exec command as curl allows
retries only for transient errors and fails for connectivity
errors.
Closes-bug: #1412712
Related-bug: #1410119
Change-Id: I681599ea4a2756e7a442c194c68cf0a484f24f7f
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
47e89058bf