when doing the install, postConfigure will fail at the add new instance with

When you run the command that fails manually, you get this error

aws: error: argument --key-name: expected one argument

• • • Failed to Launch an Instance for um1, will retry up to 5 times
    • Failed to Successfully Launch Instance for um1
      launch Instance failed for um1

[mariadb-user@ip-172-30-0-166 bin]$ ./MCSInstanceCmds.sh getKey

An error occurred (UnauthorizedOperation) when calling the DescribeInstances operation: You are not authorized to perform this operation.

So a change needs to be made to detect and report the 'UnauthorizedOperation' error