As I have configured the `aws_access_key_id` in `.chef/knife.rb` as follows:
knife[:aws_access_key_id] = "SSSSS"
What are the equivalent for the following options? I googled it, couldn't found the precise one. Does knife ec2 plugin support?
-i IDENTITY_FILE, The SSH identity file used for authentication
--identity-file
-x, --ssh-user USERNAME The ssh username
--region REGION Your AWS region
-G, --groups X,Y,Z The security groups for this server
-S, --ssh-key KEY The AWS SSH key id
-V, --verbose More verbose output. Use twice for max verbosity