make_romana_manifests

#!/bin/bash

usage() {
	echo "make_romana_manifests: helper script to manifests for clustered master nodes"
	echo
	echo "usage: make_romana_manifests <host-ip> [host-ip...]"
}

if ! (( $# )); then
	echo "No host ips provided"
	usage
	exit 1
fi

initial_cluster=
datastore_nodes=
sep=
i=0
for ip in "$@"; do
	(( i++ ))
	printf -v initial_cluster "%s%setcd-%d=http://%s:12380" "$initial_cluster" "$sep" "$i" "$ip"
	printf -v datastore_nodes "%s%s%s" "$datastore_nodes" "$sep" "$ip"
	sep=,
done

i=0
first=1
for ip in "$@"; do
	(( i++ ))
	replacements=(
		-e 's|<node-number>|'"$i"'|g'
		-e 's|<host-ip>|'"$ip"'|g'
		-e 's|<initial-cluster>|'"$initial_cluster"'|g'
		-e 's|<datastore-nodes>|'"$datastore_nodes"'|g'
	)
	sed "${replacements[@]}" romana-etcd-bootstrap.yaml.t > "romana-etcd-bootstrap:$ip.yaml"
	sed "${replacements[@]}" romana-etcd.yaml.t > "romana-etcd:$ip.yaml"
	if (( first )); then
		first=0
		sed "${replacements[@]}" romana-datastore-bootstrap:first.yaml.t > "romana-datastore-bootstrap:$ip.yaml"
	else 
		sed "${replacements[@]}" romana-datastore-bootstrap.yaml.t > "romana-datastore-bootstrap:$ip.yaml"
	fi
	sed "${replacements[@]}" romana-datastore.yaml.t > "romana-datastore:$ip.yaml"

done