Amazon EKS vs ECS: Which Should Beginners Learn?
Compare Amazon ECS and EKS, understand Kubernetes basics, and discover which container platform beginners should learn first for a DevOps career.
Series: My 90-Day AWS & DevOps Learning Journey (30 articles)
- …
- 20Amazon EKS vs ECS: Which Should Beginners Learn? This article
Amazon EKS vs ECS: Which Should Beginners Learn?
Description: Understand Amazon EKS, Kubernetes, and ECS, compare their differences, and discover which container platform beginners should learn first.
Amazon EKS vs ECS: Which Should Beginners Learn?
After learning Docker, Amazon ECR, and Amazon ECS, I started thinking about another important question:
“If ECS can run containers on AWS, why do we need Kubernetes and Amazon EKS?”
This is a question worth exploring when learning cloud and DevOps because both services help us run containerized applications, but they work differently.
What Is Amazon EKS?
Amazon Elastic Kubernetes Service (Amazon EKS) is a managed AWS service for running Kubernetes.
Kubernetes is an open-source platform that helps deploy, manage, and scale containerized applications.
With Kubernetes, we can define how applications should run and use its orchestration capabilities to manage container workloads.
Amazon EKS makes it easier to use Kubernetes on AWS without having to manage the entire Kubernetes control plane ourselves.
What Is the Difference Between ECS and EKS?
Both services help us run containerized applications, but their approaches are different.
Amazon ECS
Amazon ECS is AWS's own container orchestration service.
It provides AWS-native ways to define, schedule, and manage container workloads.
For example, we can use ECS with AWS Fargate to run containers without managing the underlying servers.
Amazon EKS
Amazon EKS provides a managed Kubernetes environment.
It is useful when a team needs Kubernetes capabilities, wants to use Kubernetes tools, or needs a platform that can support workloads across different environments.
Here's a simple comparison:
| Feature | Amazon ECS | Amazon EKS |
|---|---|---|
| Orchestration | AWS-native | Kubernetes |
| Main concepts | Tasks and services | Pods and deployments |
| Learning curve | Often simpler for AWS beginners | More concepts to learn |
| Ecosystem | AWS-focused | Broad Kubernetes ecosystem |
| Compute options | EC2 and Fargate | EC2 and supported Fargate workloads |
Neither service is automatically the best choice for every application. The right option depends on the team's skills, architecture, and operational requirements.
Understanding the Main Concepts
One thing that makes Kubernetes challenging for beginners is learning its terminology.
Here are a few concepts to understand:
1. Cluster
The environment where Kubernetes workloads are managed.
2. Pod
The smallest deployable unit in Kubernetes. A pod can contain one or more closely related containers.
3. Deployment
A Kubernetes resource used to manage application replicas and controlled updates.
4. Service
A Kubernetes resource that provides a stable way to access a set of pods.
These concepts serve different purposes from ECS task definitions and services, even though some of their responsibilities may seem similar.
How Does EKS Fit Into a DevOps Pipeline?
Imagine a developer updates a web application.
A simplified workflow might look like this:
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Developer
↓
Git Repository
↓
CI/CD Pipeline
↓
Build Docker Image
↓
Push Image to Amazon ECR
↓
Deploy to Amazon EKS
↓
Application Runs on Kubernetes
The pipeline can automate building, storing, and deploying application images.
This is where Docker, ECR, Kubernetes, and CI/CD start connecting into a larger DevOps workflow.
Should Beginners Learn ECS or EKS First?
My current approach is to understand the fundamentals before moving into more complex tools.
If your goal is to deploy containerized applications on AWS, ECS is a reasonable starting point because it introduces container deployment using AWS-native concepts.
If your goal involves Kubernetes-based platforms, Kubernetes-heavy job descriptions, or workloads across different environments, EKS becomes an important skill.
A practical learning path could be:
- Learn Linux and Git.
- Understand Docker and Docker Compose.
- Learn Amazon ECR.
- Deploy a small application using Amazon ECS.
- Learn Kubernetes fundamentals.
- Deploy an application to Amazon EKS.
- Automate deployments using CI/CD.
You don't need to master everything at once. Building and deploying one small application can teach you more than memorizing dozens of definitions.
My Learning Journey
My recent topics have followed a connected path:
- Day 15: Docker fundamentals
- Day 16: Docker Compose
- Day 17: Amazon ECR
- Day 18: Amazon ECS
- Day 19: ECS networking
- Day 20: ECS vs EKS
I'm trying to understand not just what each technology does, but why a DevOps engineer would choose one tool over another.
That decision-making ability is just as important as knowing commands.
💬 Let's Discuss
If you were starting your DevOps journey today, which would you learn first: Amazon ECS or Kubernetes? Why?
If you've already worked with both, what made you choose one over the other for a real project?
I'd especially like to hear from people who have deployed an actual application, even a small personal project.
Series: My 90-Day AWS & DevOps Learning Journey (30 articles)
- …
- 20Amazon EKS vs ECS: Which Should Beginners Learn? This article
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