Architecting for the Cloud: AWS Best Practices

The Cloud Computing Difference

IT Assets Become Programmable Resources

Global, Available, and Unlimited Capacity

Higher Level Managed Services

Security Built In

Design Principles

Scalability

Scaling Vertically: upgrade CPU, RAM， DISK

Scaling Horizontally：

1， Stateless Applications：

1.1 distribute load to multiple nodes:

  Push model:ELB& Route53

 Pull model: Amazon SQS& Amazon Kinesis

1.2 Stateless Components

Amazon DynamoDB, Amazon EFS ,Amazon SWF

1.3 Stateful Components

How to implement session affinity:“sticky sessions” feature of ELB, and client side implement health check and distribute request.

Distributed Processing

By dividing a task and its data into many small fragments of work, you can execute each of them in any of a larger set of available compute resources

Offline Batch job:Amazon EMR

real-time processing of streaming data:Amazon Kinesis

Disposable Resources Instead of Fixed Servers

Instantiating Compute Resources

Bootstrapping:user data scripts cloud-init AWS OpsWorks, configuration management tools like Chef or Puppet, AWS CloudFormation

Golden Images&docker

Hybrid(Bootstrapping& Golden Images)

Infrastructure as Code: AWS CloudFormation

Automation

AWS Elastic Beanstalk12 is the fastest and simplest way to get an application up and running on AWS

Amazon EC2 Auto recovery

Auto Scaling

Amazon CloudWatch Alarms

Amazon CloudWatch Events

AWS OpsWorks Lifecycle events

AWS Lambda Scheduled events

Loose Coupling

Well-Defined API: API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale

Service Discovery:

Asynchronous Integration

Graceful Failure

Services, Not Servers

Managed Services

Serverless Architectures

Databases

Relational Databases(RDS)

NoSQL Databases

Data Warehouse(AWS Redshift)

Search:Amazon CloudSearch and Amazon Elasticsearch Service (Amazon ES)

Removing Single Points of Failure

Introducing Redundancy

Detect Failure

Durable Data Storage

Automated Multi-Data Center Resilience

Fault Isolation and Traditional Horizontal Scaling

Optimize for Cost

Right Sizing

Elasticity

Take Advantage of the Variety of Purchasing Options(Reserved Capacity )

Caching

Application Data Caching

Edge Caching

Security

Utilize AWS Features for Defense in Depth

Offload Security Responsibility to AWS

Reduce Privileged Access

Security as Code

Real-Time Auditing