Nicholas Thomson, Shanel Huang, and Lutao Xie from AWS discuss how to use AWS Systems Manager (SSM) to install the Datadog Agent with one-click installation. This allows users to automatically install custom software on large groups of instances without having to configure the Agent YAML file. The process involves configuring an IAM role, searching for the Datadog document in the SSM marketplace, and selecting the target instances to install the Agent on. Once installed, users can monitor their AWS infrastructure with out-of-the-box Agent capabilities, including dashboards for EC2, RDS, Lambda, S3, and more. The Agent also offers customizable widgets and integrations with other services, such as OpenAI and Azure, allowing users to get the most out of Agent-based AWS monitoring. Additionally, the one-click installation automates updates across a distributed system, making it easier to roll out new versions of the Agent without manual configuration.