07ECS and EKS questions
Questions teams ask before picking ECS or EKS
Short answers on cost, Kubernetes, Fargate, migration and deploys. Bring your Dockerfile or your current cluster setup to the first call and we’ll answer for your case.
What is the difference between Amazon ECS and Amazon EKS?
Both run containers across a group of servers. Amazon ECS is AWS’s own orchestrator with simple concepts (task definitions, services, clusters) and no extra charge. Amazon EKS is managed Kubernetes: AWS runs the control plane, you get standard Kubernetes APIs and tools, and you pay $0.10 per cluster per hour in US East on standard support. ECS is usually quicker to learn; EKS fits teams that already know Kubernetes or need it to be portable.
Is AWS Fargate the same as ECS?
No. Fargate is a way to run containers without managing servers, and it works under both ECS and EKS. You pick an orchestrator (ECS or EKS) and then a capacity type (Fargate or EC2 instances). Fargate bills the vCPU and memory each task or pod requests, by the second with a one-minute minimum.
How much does Amazon EKS cost?
In US East (N. Virginia) each EKS cluster costs $0.10 per hour while its Kubernetes version is in standard support, which is the first 14 months after release in EKS. After that, extended support costs $0.60 per cluster per hour. The servers, Fargate capacity, load balancers and storage are billed on top. One cluster for a full 730-hour month is $73 before any compute.
Is ECS cheaper than EKS?
The orchestrator is: ECS has no charge of its own, while EKS adds a cluster fee. The bigger cost is the compute underneath, which is priced the same either way. For a small team, the real saving with ECS is usually fewer hours spent running the platform.
When is Fargate more expensive than EC2?
For large, steady workloads that can be packed tightly onto right-sized EC2 instances with Savings Plans, EC2 often costs less per vCPU. Fargate tends to win for small or spiky services, because you never pay for half-empty servers or the time to patch them. Fargate Spot can cut interruptible ECS tasks by up to 70%.
Can you move our app from Heroku or a VPS to ECS?
Yes. We write or tidy the Dockerfile, push images to Amazon ECR, move config into Secrets Manager or Parameter Store, run the app as an ECS service behind a load balancer, and switch DNS once your team has tested it. The old host stays available until the new one has run cleanly.
How do zero-downtime deploys work on ECS?
ECS supports rolling updates and built-in blue/green deployments. With blue/green, the new version starts next to the old one, gets test traffic, then takes production traffic, and the old version keeps running for a bake time so you can switch back. Lifecycle hooks can run checks or pause the deploy at each stage.
Do we need Kubernetes?
Most teams with fewer than a few dozen services don’t. Kubernetes earns its keep when you already have people who run it, need tools from its ecosystem, or must run the same setup outside AWS. Otherwise ECS gives the same reliability with less to learn and patch.
Can ECS or EKS services connect to Zoho CRM and Zoho Books?
Yes. Common patterns are a Zoho CRM webhook that triggers your container service to create a customer account, a queue worker that posts orders into Zoho Inventory or Zoho Books with retries, and a scheduled task that sends usage data to Zoho Analytics.
How do you price ECS or EKS projects?
The first call is free. Each container project is then a fixed price agreed in a signed BRD that lists every service, pipeline and cutover date. Large cluster migrations may need a paid assessment first, which we quote up front. AWS bills you directly for the compute.