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OCP 4.2/4.3 All-In-One (UPI mode)

This document assume reader is familiar with the OCP4x installation process.

Setup the install-config.yaml to deploy a single master and no workers
```
apiVersion: v1
baseDomain: example.com
```

	#!/opt/openstack/venv/bin/python
	import MySQLdb
	import sys
	import json

	connection = MySQLdb.connect(
	host=sys.argv[1], user="nova",
	passwd=sys.argv[2], db="nova")
	cursor = connection.cursor()
	cursor.execute("select network_info, instance_uuid from instance_info_caches where deleted=0")