Containers

Question 1

What is the main difference between ECS and Fargate?

Answer 1

With ECS you have to manage instances etc. Fargate is serverless, so you don’t manage instances

Question 2

Are task roles the same as IAM roles?

Answer 2

No, an IAM role is assigned to a service. A task role is assigned to a specific ECS task that is running and it is advised to have 1:1

Question 3

What is Dynamic Port Mapping?

Answer 3

It is when the ALB supports finding the right port on the EC2 instance

Question 4

What must you allow to use Dynamic Port Mapping?

Answer 4

You must allow any port in your EC2 instance security group, from the ALB

Question 5

Does Fargate use Dynamic Port Mapping?

Answer 5

No, Fargate uses ENI’s which all have a unique IP address, and are on port 80/443

Question 6

How does Fargate work with an ALB?

Answer 6

We need to allow the ALB task port on the ENI’s security group