Deployment script fail occasionally (two sub-issues)

[Jimmy Chu]

• sometimes the node does recognize broker01.oo.cnpaas.io, need to use a better DNS
• sometimes reset-cart-index page fail on copying files

resetting carts index page...
/root/backend-201509041940/bin/init/reset-carts-index: line 49: ./redhat-ruby/0.0.20/versions/1.9/template/config.ru: No such file or directory

[Jimmy Chu]

couldn't reproduce...