Don't believe this cookbook has any ability to use IAM roles in EC2. With other cookbooks I've used, if you leave the aws_access_key_id and aws_secret_access_key parameters from the LWRP's, somehow the cookbook will fall back to authentication via the IAM role assigned to the instance.
However, with this cookbook, leaving those parameters out results in the following error:
Don't believe this cookbook has any ability to use IAM roles in EC2. With other cookbooks I've used, if you leave the aws_access_key_id and aws_secret_access_key parameters from the LWRP's, somehow the cookbook will fall back to authentication via the IAM role assigned to the instance.
However, with this cookbook, leaving those parameters out results in the following error:
"Missing required arguments: aws_access_key_id, aws_secret_access_key"