AWS Well Architected Framework
Well-Architected Framework
The Well-Architected Framework by Amazon helps users to build secure, high-performing, resilient, and efficient infrastructure for their applications. Based on five pillars of cloud architecture design principles—
- operational excellence
- security
- reliability
- performance efficiency
- cost optimization
Core Principles
The core principles of AWS are – Elasticity and Scalability
Elasticity
- Refers to capability of resource usage dynamically
- Avoids traditional anti-pattern of over provisioning of infrastructure resources to cope with capacity requirements.
- It helps to reduce any over provisioned resources
- In AWS it is offered as pay as you pay, model
Scalability
- Ability to scale without changing the design.
- In AWS, scalability is achieved by scaling-out.
- The technology components are commodities to be thrown if they fail or grow by adding.
To successfully leverage the AWS cloud
- Autoscaling allows you to automatically horizontally scale to accommodate load.
- Bootstrapping provides automatic setup of servers after they boot. (By AMI and CloudFormation)
- Loosely Coupled
- Stateless
- Horizontal
- Treat servers as disposable resources
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