Web Server Tier : Run web applications

Single-instance environments: EC2 + Elastic IP

Load-balanced environments: ELB + ASG + EC2

(OPTIONAL) Add database to Elastic Beanstalk Env:

Use environment properties to connect to database

RDS_HOSTNAME, RDS_PORT, RDS_DB_NAME, RDS_USERNAME, RDS_PASSWORD

Lifecycle of database tied to Elastic Beanstalk Env:

If you delete Elastic Beanstalk environment, database also deleted

(WORKAROUND): Enable Delete Protection on RDS

(WORKAROUND): Take Database Snapshot and Restore

NOT RECOMMENDED for Production Deployment

Worker Tier: Run Batch Applications: ASG + EC2 + SQS

Process messages from SQS queues

Trigger auto scaling using AWS CloudWatch alarms

Schedule tasks using cron.yaml