Agents are physical resources for deployment. To run a deployment, an agent must be installed on the target server.
Typically, an agent is installed in every environment that an application passes through.
An agent is a lightweight process that runs on a target server and communicates with the Deployment Automation server. Agents are integral to the client/server architecture. Agents perform the actual work of deploying components and so relieves the server from the task, making large deployments involving thousands of targets possible.
Process requests, such as deployments, are orchestrated by the server and performed by agents distributed throughout the network. Server-agent communication is built around transferring, or deploying, components.
Figure 1. Simple Server-Agent Communication
