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EKS + Fargate versus ECS + Cluster Auto Scaling

28 Sep 2022

Learn how EKS + Fargate differs from ECS + Cluster Auto Scaling.

EKS + Fargate ECS + Cluster Auto Scaling
Deployment Options

⚠️ AWS only

⚠️ AWS only (except ECS Anywhere)


⚠️ Available in 18 regions

✅ All AWS regions

Cluster Costs (per month)

$ 72.00

$ 0.00

Compute Costs



Compute Pricing Options

✅ On-demand
❌ Spot
✅ Savings Plan

✅ On-demand
✅ Spot
✅ Savings Plan

Virtual Machines

✅ Does not involve managing EC2 instances.

⚠️ EC2 instances running in your AWS account. ECS Cluster Auto Scaling does not cover all aspects of operating virtual machines (e.g. rolling update to update AMI).

Infrastructure Scaling

✅ AWS takes care of the scaling of the infrastructure.

⚠️ ECS Cluster Auto Scaling works fine for scaling up. But will not scale down automatically in most scenarios.


✅ ENI and Security Group per pod/container.

✅ ENI and Security Group per task/container.

Load Balancing



Service Discovery

✅ K8s

✅ Cloud Map