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Best Practices for Building Solutions on AWS

Evaluate tradeoffs so that you can select optimal approach.

  • You might trade consistency, durability, and space for time and latency to deliver higher performance.

  • You might prioritize speed to market over cost.

Best Practices

  1. Enable Scalability

    • Use services like Amazon EC2 Auto Scaling to scale out the servers.

  2. Automate the Environment

    • Amazon EC2 Auto Scalaing can scale the servers based on certain metrics.

  3. Treat Resources as disposable

    • Automate deployment of new resources with identical configurations.
    • Terminate resources when they are not in use
    • Switch to new IP address automatically.

  4. Use loosely coupled components

    • Decouple the architecture with services like Elastic Load Balancing, message queues.

  5. Design services not servers.

    • When appropriate, consider using containers and serverless solutions.
    • Use message queues to handle communication between web servers.

  6. Choose the right database solution

    • Consider read-write needs, latency, storage requirements, nature of queries, concurrent connections and many more before choosing any database.

  7. Avoid single point of failure

    • Assue everything fails and then design backward
    • Use redundancy to prevent SPOF. Example: database replication

  8. Optimize for cost

    • Take advantages of flexibility of aws to increase cost efficiency.

  9. Use caching

    • Use services like Amazon CloudFront

  10. Secure the entire infrastructure

    • Build security at every layers of the infrastructure.