Download cluster blueprints without hosts

Ensure you download the cluster blueprints before you begin the upgrade.

To download the cluster blueprints without hosts, do the following:
curl ${securecurl} -H "X-Requested-By: ambari" -X GET -u ${ambariuser}:${ambaripwd} ${ambariprotocol}://${ambariserver}:${ambariport}/api/v1/clusters/${clustername}?format=blueprint > "${backupdir}"/${clustername}_blueprint_without_hosts_"$(date +"%Y%m%d%H%M%S")".json
where,

securecurl = -k for https

securecurl = -k for https

ambariuser = Ambari User Name

ambaripwd = Ambari Password

ambariprotocol = http or https

ambariserver = Ambari Server Name

ambariport = Ambari Port

clustername = The Name of the cluster

backupdir = The folder to download the blueprint