Introduction to ECS, ECR, Fargate

Creating Dockerfil & Composing it

Learning Outcome(Slide2)

Earlier, we learned:

• Docker is used to create and run containers
   

• Containers can run applications easily
   

Now the next question is:

How do we run and manage Docker containers on AWS?

AWS provides managed container services for this.

Hook/Story/Analogy(Slide 4)

Think of running containers like running delivery trucks

• You need a warehouse to store goods
   

• You need a system to run deliveries
   

You don’t want to manage every small detail

AWS provides ready-made services for this work.

Transition from Analogy to Technical Concept(Slide 5)

To store Docker images and run containers in the cloud,
AWS provides three important services:

• ECR
   

• ECS
   

Fargate

Let’s understand each one clearly.

What is Amazon ECR (Elastic Container Registry)?

Amazon ECR is a managed Docker image repository in AWS

It is used to:

• Store Docker images
   

• Manage image versions
   

• Secure images using IAM

In simple words:
ECR is like Docker Hub, but inside AWS.

Why ECR is Needed​

• Keeps Docker images secure
   

• Works smoothly with other AWS services
   

Controls who can push and pull images

​ECR acts as the central storage for Docker images in AWS.

What is Amazon ECS (Elastic Container Service)?

Amazon ECS is a container orchestration service.

It is used to:

• Run Docker containers
   

• Manage container lifecycle
   

• Handle scaling and availability

ECS decides how containers should run

Why ECS is Needed

• Manages multiple containers easily
   

• Reduces manual container management
   

• Helps run containers reliably in production

ECS does not store images - it uses images from ECR to run containers

What is AWS Fargate?

AWS Fargate is a serverless compute engine for containers.

It allows you to:

• Run containers without managing servers
   

Avoid EC2 instance management

 With Fargate, you focus only on containers,
AWS manages the infrastructure.

Why Fargate is Important

• No server provisioning
   

• Automatic scaling
   

Pay only for used resources

-Fargate works with ECS, not separately.

How ECS, ECR, and Fargate Work Together

• ECR stores Docker images
   

• ECS manages and runs containers
   

Fargate runs containers without servers

Together, they form a complete Docker solution on AWS.

Summary

What does AWS Fargate help you avoid?

What does AWS Fargate help you avoid?