An Amazon ECS cluster is a logical group that contains tasks or services. If your task or service uses the EC2 launch type then the cluster is a grouping of container instances. The first time, Amazon ECS will create a default cluster for you. To keep your resources separate, you can create multiple clusters.
We will look at the following in relation to Amazon ECS clusters:
- Cluster concepts
- Creating a cluster
- Scaling a cluster
- Deleting a cluster
- Clusters are region-specific and contain tasks using Fargate or EC2 launch types
- IAM policies are used to allow or restrict users from accessing your clusters
- With EC2 launch type, your cluster can contain different container instance types; this container instance type will be part of one cluster at a time