Other Compute (Docker, etc.)

Question 1

What is ECS?

Answer 1

• Elastic Container Service
• Ability to launch Docker containers or AWS
• You must maintain EC2 infrastructure to host containers
• AWS handles starting/stopping containers
• Integrates with Load Balancer

Question 2

What is Fargate?

Answer 2

• Simpler method to launch Docker containers
• Serverless Compute engine
• “Serverless” - AWS managers all infrastructure. Don’t have to manage EC2 instances

Question 3

What is ECR?

Answer 3

• Elastic Container Registry
• AWS private docker registry
• Store your docker images for use on ECS or Fargate

Question 4

What is Serverless?

Answer 4

• developers don’t have to provision and manage servers
• Pioneered by AWS Lambda
• Serverless does not mean there are no servers. AWS manages them behind the scenes
• Examples: S3, DynamoDB, Fargate, Lamda

Question 5

Why Use Lambda?

Answer 5

• Runs on demand
• Short executions
• Virtual functions (no servers! , No EC2)
• Automated Scaling

Question 6

What are the benefits of Lambda?

Answer 6

• Event-Driven: active only when needed *** Event
• Easy pricing - per call/request and compute time (duration)
• Large free tier
• Integrated with all AWS services
• AWS monitoring tools
• Remember not for Docker
• Use cases: thumbnail creation, CRON jobs

Question 7

What is AWS Batch?

Answer 7

• Fully managed batch processing at any scale
• batch dynamically launches EC2 instances or Spot instances
• You submit - Batch does the rest
• Batch jobs are run as Docker (containerized) images and run on EC2 / Fargate

Question 8

What is the difference between Lambda and Batch?

Answer 8

Lambda
 - time limit
 - serverless
 - limited run times
Batch
 - No time limit
 - Any Docker runtime
 - Relies on EC2 and EBS

Question 9

What is Lightsail?

Answer 9

• Simplified cloud deployment for novices

Question 10

What is API Gateway?

Answer 10

• can create a serverless API to allow users to access Lambda