The username or access key used for authenticating with the selected content delivery network (CDN).
This field is required when the cdnType is set to Rackspace Cloud Files(RACKSPACE_CLOUD_FILES), Amazon Web Services(AMAZON_S3), or Akamai(AKAMAI), as it is used to authenticate and authorize access to the respective cloud services.
- For Rackspace Cloud Files(RACKSPACE_CLOUD_FILES), this is typically the username associated with your Rackspace cloud account.
- For Amazon Web Services(AMAZON_S3), this corresponds to the Access Key ID used to interact with Amazon Web Services(AMAZON_S3) resources.
- For Akamai(AKAMAI), this is the username used for API authentication to access Akamai's content delivery services.
If the cdnType is None, this field is not applicable.