$1 -h|--help [-a|--arch] [-b|--bindhome <user>] [-d|--debug]
[-F | --flush-cache] [-r|--release <release>] [ -S | --auth-key <keyfile>]
[--rootfs <rootfs>] [--packages <packages>] [-u|--user <user>] [--password <password>]
+ [--mirror <url>] [--security-mirror <url>]
release: the ubuntu release (e.g. precise): defaults to host release on ubuntu, otherwise uses latest LTS
bindhome: bind <user>'s home into the container
The ubuntu user will not be created, and <user> will have
arch: the container architecture (e.g. amd64): defaults to host arch
auth-key: SSH Public key file to inject into container
packages: list of packages to add comma separated
+mirror,security-mirror: mirror for download and /etc/apt/sources.list
EOF
return 0
}