Overcloud deployment getting failed.

Issue

• Deployment getting failed with below error:

  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource Traceback (most recent call last):
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource 
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource   File "/usr/lib/python3.6/site-packages/heat/engine/hot/functions.py", line 94, in result
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource     parameter = self.parameters[param_name]
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource 
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource   File "/usr/lib/python3.6/site-packages/heat/engine/parameters.py", line 554, in __getitem__
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource     return self.params[key].value()
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource 
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource KeyError: 'EC2MetadataIp'
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource 
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource 
  2020-04-11 22:17:15.645 35 ERROR heat.engine.resource During handling of the above exception, another exception occurred: