What is the difference between Amazon ECS and Amazon EC2?

Your question Is ECS just a docker install in EC2? If I already have a EC2, then I start a ECS, does it mean I have two instance? No. AWS ECS is just a logical grouping (cluster) of EC2 instances, and all the EC2 instances part of an ECS act as Docker host i.e. ECS can send command to launch a container on them (EC2). … Read more