ECS

Question 1

What is ECS?

Answer 1

Elastic Container Service

Deploy and scale containerized workloads

Question 2

What is a Container

Answer 2

Similar to a virtual operating env.

Made up of stateless microservices

Question 3

What can ECS run on?

Answer 3

Cluster of VMS (ECS)

Fargate for Serverless

EC2 for more control

Question 4

What is ECR

Answer 4

Elastic Container Registry

Question 5

What to do if you already have docker?

Answer 5

Connect image to ECR then connect EC2 to ECR

Docker build
Docker tag
Docker push

Question 6

How to define build commands in ECS?

Answer 6

bulidspec.yaml

Question 7

What task placement stragies does ECS support?

Answer 7

binpack
random
spread

Question 8

What is the binpack strategy for ECS?

Answer 8

Places tasks based on least available amount of CPU or memory to minimize number of instances used

Question 9

What ECS feature allows you to write expressions to group container instances by specific attributes

Answer 9

Cluster Query Language

Question 10

A set of related tasks in ECS are called

Answer 10

Task Group

Question 11

Rule that is considered during task placement ECS

Answer 11

Task Placement Constraint

Question 12

Algorithm for selecting ECS

Answer 12

Task Placement Strategy

Question 13

What is Fargate

Answer 13

way to run containers without having to manage servers or EC2 instances.

support container images hosted on ECR or Docker Hub

Question 14

If want to troubleshoot ECS what should you do?

Answer 14

Install the X-Ray daemon on a new container alongside your app

Question 15

What port do you need to configure in order to use AWS S-Ray daemon to listen to app traffic?

Answer 15

UDP port 2000

Question 16

Where do you attach role if you want ECS to access an SQS Queue?

Answer 16

ECS Task