This topic explains the routing connections to domains using the Oracle Traffic Director.

The <Domain 1> is denoted as Green and <Domain 2> is denoted as Blue in the below image.

The Blue-Green deployment process uses two identical environments, Blue and Green. Only one environment is active at a time, serving all the traffic with the load balancer, and the other is in standby mode.

For example, consider that Blue is on standby and Green is active. When the updates are completed in the Blue environment, you can use the load balancer to switch the traffic to the Blue environment.

Once the traffic is diverted and directed to the Blue environment using the Load balancer, health checks are performed for all the currently active Blue environment components with traffic.