AWS for DevOps: High Availability and Elasticity

Learn tools, best practices, and design patterns for effective application scaling (elasticity) and high availability for applications running on the AWS cloud.

Introduction

• Welcome
• What you should know
• Exercise files
• About using cloud services

1. Availability and Elasticity Approaches

• High availability and elasticity defined
• Outcome-based availability (SLAs)
• Server-based vs. serverless applications
• Simplifying HA with services
• AWS regions vs. availability zones
• Metrics, tools, and levels of monitoring
• Vertical vs. horizontal scaling
• About self-healing architectures

2. Availability and Elasticity for Services

• Defining application areas and AWS services
• Scaling S3: The data (file) tier
• HA for EC2 via AMI, EIP, and alarms
• HA for EC2 with load balancers
• Scaling EC2 with auto-scaling groups
• Scaling containers with ECS
• Scaling Lambda: The middle tier
• Scaling CloudFront: The front end
• Scaling ElastiCache: The front end
• Scaling Kinesis: The middle tier
• Scaling DynamoDB: The database tier
• Scaling RDS: The database tier

3. AWS Tools for Availability and Elasticity

• Setting up AWS CLI
• Script tools for high availability
• Script tools for elasticity
• Setting up the AWS SDK
• Code tools for elasticity
• Code tools for high availability
• AWS code best practices

4. Advanced and Third-Party Tools

• Trusted Advisor for fault tolerance
• Route 53 for high availability
• Understanding third-party tools
• Comparing HA and elasticity architectures

Conclusion

• Next steps