#!/usr/bin/env bash
set -eux

### --start_docs
## Adjust the hostname as necessary (usually on the undercloud)
## Note.. run this script with sudo or root
## ============================================================

## * Correct the host's transient hostname to a static one
## ::

hostnamectl set-hostname --transient $(hostnamectl --static)


## * Sanitize the /etc/hosts for duplicate entries
## ::

cp /etc/hosts /etc/hosts.bak
awk '!seen[$0]++' /etc/hosts > /etc/hosts.new
mv -f /etc/hosts.new /etc/hosts

### --stop_docs