Containers

Question 1

ECR

Answer 1

EC2 Container Registry

Question 2

Can synchronous calls be made from API Gateway to Lambda?

Answer 2

Yes

Question 3

API Gateway does what?

Answer 3

Acts a facade and makes it easier for developers to create and maintain RESTFUL APIs

Question 4

Can API Gateway interact with Lambda?

Answer 4

Yes

Question 5

What is AWS SAM?

Answer 5

The AWS Serverless Application Model (AWS SAM) is a model to define serverless applications. AWS SAM is natively supported by AWS CloudFormation and defines simplified syntax for expressing serverless resources. The specification currently covers APIs, Lambda functions and Amazon DynamoDB tables

Question 6

How would you implement Discovery Services using the application load balancer?

Answer 6

Used host based routing, and use cnames to point to different micro-services

Question 7

How would you implement discovery services using route 53?

Answer 7

Create SRV records including the port. This is not sustainable if the service had to be moved.

Question 8

How would you make discovery services dynamic using route 53.

Answer 8

Use cloudwatch to look for failed containers. The ECS Event stream would then be used to launch lambda to change DNS entries.

Question 9

Name a third party service discovery that works AWS?

Answer 9

Hashicorp