Amazon CloudWatch now supports AWS PrivateLink in AWS GovCloud (US) Regions
Amazon CloudWatch now supports AWS PrivateLink in the AWS GovCloud (US) Regions. This allows you to privately connect to CloudWatch Metrics and Logs, securely on the AWS network. AWS PrivateLink allows you to privately access services hosted on AWS in a highly available and scalable manner, without using public IPs and without requiring the traffic to traverse the internet.
Source:: Amazon AWS