Rollouts depend on how quickly your old Containers are shutting down (they should handle SIGTERM sig
Rollouts depend on how quickly your old Containers are shutting down (they should handle SIGTERM signals) & how quickly the new ones can start

"containers": [
{
"class_name": "TestContainer",
"image": "./src/durableObjects/containers/TestContainer/Dockerfile",
"max_instances": 10,
"instance_type": "standard-1",
"rollout_active_grace_period": 0,
"rollout_step_percentage": [
100
],
"constraints": {
"regions": ["OC"]
}
}
],