Elastic Beanstalk

• Developer centric view of deploying an application on AWS.
• Manages infrastructure for the code by making following very easy:
  • Configuration of databases
  • Configuration of load balancers
  • Configuration of auto-scaling
• Instance / OS configuration / deployment is handled by Beanstalk but are configurable.
• Pricing: Elastic BeanStalk is free! You pay for the underlying resources.
• It deploys common HA architectures with EC2, ALB, ASG, RDS, etc..
  1. Single instance deployments: good for dev
  2. LB + ASG: good for prod + pre-production
  3. ASG only: good for non-web apps in production (workers, etc.)
• Still have full control over the configuration
• Support for many platforms: Go, Java SE, Java with Tomcat, .NET on Windows Server with IIS, Node.js, PHP, Python, Ruby, Packer Builder, Single Container Docker, multi-container Docker, Preconfigured Docker
• Deployment:
  • Has three components:
    • Application
    • Application version (increased in each deployment)
    • Environment name e.g. dev, test, prod.
  • You deploy application versions to environments can promote application versions to the next environment.
  • Rollback feature to previous application version
  • Full control over lifecycle of environments
  • If not supported, you can write your custom platform (advanced)
• Can run containers:
  • Single Container Docker: 1 container per Beanstalk instance.
  • Multi-container Docker: Many docker instances within same Beanstalk instance.
  • Pre-configured Docker Containers: e.g. Java with Glassfish or Python with uWSGI.
• Configurations
  • Presets
    • Low cost (free tier eligible): One EC2 + Elastic IP
    • High availability: ELB + ASG
    • Custom configuration: Customize everything
  • Software
    • Environment (e.g. NodeJs) version and environment properties
    • AWS X-Ray enabled/disabled
    • Rotate logs (disabled/enabled)
    • Log streaming (disabled/enabled)
  • Instances
    • Instance type, image ID, root volume type, root volume size, root volume IOPS, security groups
  • Capacity
    • Environment type (e.g. load balancing, auto-scaling)
    • Availability zones
    • Instances
  • Load balancer: type, listener (e.g. 1), processes (e.g. 1), rules (e.g. 1)
  • Rolling updates and deployments
    • Deployment policy (e.g. all at once)
    • Rolling updates (disabled/enabled)
    • Health check(enabled/disabled)
  • Security
    • Service role (e.g. aws-elasticbeanstalk-service-role)
    • VM key pair
    • VM instance profile.
  • Monitoring
    • Health reporting system (enhanced)
    • Ignore HTTP 4xx (disabled/enabled)
    • Health event log streaming (disabled/enabled)
  • Managed updates (enabled/disabled)
  • Notifications with e.g. (email address)
  • Network: VPC
  • Database: engine, instance class, storage (GB), multi-AZ)

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