Classic SA Discussions - Elastic Beanstalk

Question 1

What is Elastic Beanstalk?

Answer 1

A service for deploying and managing applications on AWS.

Bundles AWS components like EC2, ASG, ELB, and RDS into a single, developer-friendly interface.

Question 2

Why use Elastic Beanstalk?

Answer 2

Automates provisioning, scaling, load balancing, and health monitoring.
Lets developers focus on writing code instead of managing infrastructure.

Question 3

What are the key components of Elastic Beanstalk?

Answer 3

Application: Collection of environments, versions, and configurations
.
Application Version: Iterations of your code (e.g., version 1, version 2).

Environment: Resources running a specific application version.

Question 4

What are the environment tiers in Elastic Beanstalk?

Answer 4

Web Server Tier: Traditional architecture with load balancers and auto-scaling web servers.

Worker Tier: Processes messages from an SQS queue using worker EC2 instances.

Question 5

What are the deployment modes in Elastic Beanstalk?

Answer 5

Single Instance Mode:
For development, uses one EC2 instance with an Elastic IP.

Highly Available Mode:
For production, includes load balancers, auto-scaling, and multi-AZ RDS.

Question 6

What are the architecture options in Elastic Beanstalk?

Answer 6

Web Environment:
Load balancer routes traffic to auto-scaling web servers.

Worker Environment:
EC2 instances pull messages from an SQS queue and scale based on the number of messages.

Question 7

Can you combine web and worker environments in Elastic Beanstalk?

Answer 7

Yes, a web environment can push messages to an SQS queue that the worker environment processes.

Question 8

Is Elastic Beanstalk free?

Answer 8

The service is free, but you pay for the AWS resources (e.g., EC2, ASG, ELB, RDS) it uses.