Other Compute (ECS, Lambda, Batch, Lightsail)

Question 1

What is a software development platform for deploying apps?

Answer 1

Docker

Question 2

What allows you to launch docker containers on AWS? What is the difference?

Answer 2

Elastic Container Service (via EC2)

Fargate (no EC2 = serverless)

Question 3

What is a private docker registry used for docker images so that they can run on ECS or Fargate?

Answer 3

Elastic Container Registry

Question 4

What serverless things have we seen?

Answer 4

S3, DynamoDB, Fargate, Lambda, Athena

Question 5

What is a serverless service that runs on-demand, scales automatically, and has short execution?

Answer 5

Lambda

Question 6

What is event-driven?

Answer 6

Lambda

Question 7

How does Lambda pricing work?

Answer 7

Per call (First 1M requests free) & Duration

Question 8

What is used to build a severless API?

Answer 8

API Gateway

Question 9

What is a fully managed batch processing service that dynamically launch EC2 instances or Spot instances and result in Docker Images that run on ECS?

Answer 9

AWS Batch

Question 10

What are the key differences between Batch vs. Lambda?

Answer 10

Lambda:
• Time limit
• Limited runtimes
• Limited temporary disk space
• Serverless

Batch:
• No time limit
• Any runtime as long as it’s packaged as a Docker image
• Rely on EBS / instance store for disk space
• Relies on EC2 (can be managed by AWS)

Question 11

What is a great service for the following use cases but with little cloud experience?

• Simple web applications (has templates for LAMP, Nginx, MEAN, Node.js…)
• Websites (templates for WordPress, Magento, Plesk, Joomla)
• Dev / Test environment

Answer 11

Lightsail (predictable & low pricing)

Question 12

What is a function-as-a-svc that is serverless? How does the billing, language support, invocation time, use cases, and API gateway work for this?

Answer 12

• Lambda Billing:
• By the time run x by the RAM provisioned
• By the number of invocations
• Language Support: many programming languages except (arbitrary) Docker
• Invocation time: up to 15 minutes
• Use cases:
• Create Thumbnails for images uploaded onto S3
• Run a Serverless cron job
• API Gateway: expose Lambda functions as HTTP API