Elastic Container Service (ECS) / Fargate

Question 1

An ECS cluster is a collection of what?

Answer 1

EC2 Instances

Question 2

Which format is used for ECS task definitions?

Answer 2

JSON

Question 3

What can you configure when creating an ECS cluster?

• Networking only (Fargate)
• EC2 Linux + Networking

There are six elements in the answer

Answer 3

• Provisioning Model (On Demand / Spot)
• EC2 instance type (T2.micro…)
• Number of instances (1)
• EC2 Ami Id (Amazon Linux 2)
• Key pair (From a list)
• IAM Role

Question 4

How many ‘essential’ containers must you specify as a minimum for an ECS task?

Answer 4

1

Question 5

What are some common container definitions you might find in a task definition JSON file?

There are three elements

Answer 5

cpu

image

memory

Question 6

What is the amount of usage time you will be billed for a Fargate task lasting a few seconds?

Answer 6

1 Minute

Question 7

Which AWS service provides the cluster you use to run Fargate tasks on?

Answer 7

ECS

Question 8

Which AWS service provides a shorter cold start time?

Fargate

Lambda

Answer 8

Fargate

Question 9

What is the maximum duration for a Fargate task?

Answer 9

Unlimited

Question 10

What is the maximum memory limit for a Fargate tasks?

Answer 10

30GB

Question 11

What is Elastic Container Service (ECS)?

What are its 5 components?

Answer 11

• It’s a orchestration service
• Clusters (EC2 instances)
• Task Definition (JSON FILE)
• Task (Launches Containers)
• Service (Ensure tasks remaining running)
• Container Agent (Monitors, starts and stops tasks)

Question 12

What is Fargate?

What are its 3 key features?

Answer 12

• It’s Serverless containers
• Duration (As long as you want)
• Memory (30 GB)
• Pricing (At least one minute)

Question 13

What is Elastic Container Registry (ECR)?

Answer 13

-It’s a Docker container registry where you can store your container images