Elastic Beanstalk Overview¶

• Developer problems on AWS

  • Managing infrastructure
  • Deploying Code
  • Configuring all the databases, load balancers etc
  • Scaling concerns

• Most web apps have the same architecture (ALB+ASG)

• All the developers want is for their code to run!
• Possibly, consistently across different applications and environments

Elastic Beanstalk¶

• Elastic Beanstalk is a developer centric view of deploying an application on AWS
• It uses all the components we've seen before : EC2, ASG, ELB, RDS, ...
• Managed service
  • Automatically handles capacity provisioning, load balancing, scaling, application health monitoring, instance configuration,...
  • Just the application code is the responsibility of the developer
• We still have full control over the configuration
• Beanstalk is free but you pay for the underlying instances

Components¶

• Application: collection of Elastic Beanstalk components (environments, versions, configurations ...)
• Application Version: an iteration of your application code
• Environment
  • Collection of AWS resources running an application version (only one application version at a time)
  • Tiers: Web Server Environment Tier & Worker Environment Tier
  • You can create multiple environments (dev, test, prod)

Supported platforms¶

• Go
• Java SE
• Java with Tomcat
• .Net Core on Linux
• .Net on Windows Server
• Node.js
• PHP
• Python
• Ruby
• Packer Builder
• Single Container Docker
• Multi-container Docker

• Preconfigured Docker

• If not supported, you can write your custom platform (advanced)

Web Server Tier vs Worker Tier¶

• Scale based on the number of SQS messages
• Can push messages to SQS queue from another Web Server Tier