Starting config-downloader, this will map back to a call to amazon-cloudwatch-agent
Usage of config-downloader:
  -config string
    	Please provide the common-config file
  -download-source string
    	Download source. Example: "ssm:my-parameter-store-name" for an EC2 SSM Parameter Store Name holding your CloudWatch Agent configuration.
  -dualstack
    	Use dual-stack endpoints for AWS API calls for config-downloader
  -mode string
    	Please provide the mode, i.e. ec2, onPremise, onPrem, auto (default "ec2")
  -multi-config string
    	valid values: default, append, remove (default "default")
  -output-dir string
    	Path of output json config directory.