EC2 Instance Connect

With EC2 Instance Connect, you can control SSH access to your instances using AWS Identity and Access Management (IAM) policies as well as audit connection requests with AWS CloudTrail events. In addition, you can leverage your existing SSH keys or further enhance your security posture by generating one-time use SSH keys each time an authorized user connects. Instance Connect works with any SSH client, or you can easily connect to your instances from a new browser-based SSH experience in the EC2 console.

Source: aws.amazon.com