A quick and dirty script to help set up a RHOSP AIO

```
usage: main.py [-h] -u USERNAME -p PASSWORD -a ADDRESS [-i INTERFACE]
               [-m NETMASK] -d DNS [DNS ...] [-D DOMAIN]
               [--using-multiple-nics] [-U DEPLOYMENT_USER]
               [--deployment-dir DEPLOYMENT_DIR] [-g GATEWAY]
               [--containers-yaml-out CONTAINERS_YAML_OUT]
               [--standalone-yaml-out STANDALONE_YAML_OUT]

optional arguments:
  -h, --help            show this help message and exit
  -u USERNAME, --username USERNAME
  -p PASSWORD, --password PASSWORD
  -a ADDRESS, --address ADDRESS
  -i INTERFACE, --interface INTERFACE
  -m NETMASK, --netmask NETMASK
  -d DNS [DNS ...], --dns DNS [DNS ...]
  -D DOMAIN, --domain DOMAIN
  --using-multiple-nics
  -U DEPLOYMENT_USER, --deployment-user DEPLOYMENT_USER
  --deployment-dir DEPLOYMENT_DIR
  -g GATEWAY, --gateway GATEWAY
  --containers-yaml-out CONTAINERS_YAML_OUT
  --standalone-yaml-out STANDALONE_YAML_OUT
```