Create Certificate

Example: 
[root@01294de80b3d builder]# clustermanager create certificate help
Error: required flag(s) "file" not set
Usage:
clustermanager create certificate [flags]
 
Aliases:
certificate, cert
 
Flags:
--file string certificate file to create, CER type
-h, --help help for certificate
 
required flag(s) "file" not set
 
[root@01294de80b3d builder]# clustermanager create cert --file sample.cer
Creating a certificate for the topology
Successfully created certificate for the topology