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Hand-written tutorials, ordered as a recommended learning path.

1. 21 Lambda with Python Build serverless functions with AWS Lambda and Python — handlers, events, layers, environment variables, API Gateway integration, and best practices. 4 min read →
2. 22 S3 with Boto3 Master S3 operations in Python — upload, download, presigned URLs, multipart uploads, lifecycle policies, and event notifications. 3 min read →
3. 23 API GW vs ALB Compare API Gateway and Application Load Balancer for fronting AWS workloads, including features, pricing, latency, and when to use each in production. 5 min read →
4. 24 CodeBuild + CodeDeploy Learn how to wire AWS CodeBuild and CodeDeploy together to build artifacts, run tests, and deploy to EC2, ECS, or Lambda with blue/green and canary strategies. 4 min read →
5. 25 CloudFront CDN Learn how AWS CloudFront accelerates content delivery, what cache behaviors look like, and how to wire it up to an S3 origin with sensible defaults. 4 min read →
6. 26 CloudWatch Build a meaningful CloudWatch setup with custom metrics, composite alarms, and dashboards that catch real incidents without paging on noise. 4 min read →
7. 27 AWS Cost Tips A pragmatic playbook for cutting AWS spend without hurting reliability: right-sizing, savings plans, storage tiering, and architectural moves. 4 min read →
8. 28 DynamoDB Design Practical DynamoDB modeling patterns including single-table design, composite keys, GSIs, and access-pattern-first thinking that keeps queries cheap at scale. 5 min read →
9. 29 EKS vs ECS A practical comparison of EKS, ECS, and Fargate covering control planes, pricing models, and when to choose each option for production container workloads. 4 min read →
10. 30 Elastic Beanstalk Deploy web apps fast with Elastic Beanstalk. Learn environments, platforms, deployment policies, configuration via .ebextensions, and when to graduate to ECS or EKS. 5 min read →
11. 31 Glue ETL Build serverless ETL jobs with AWS Glue. Learn the Data Catalog, crawlers, Spark and Python shell jobs, partitioning, bookmarks, and how to avoid surprise DPU bills. 4 min read →
12. 32 IAM Cheatsheet A quick-reference guide to the difference between IAM users, roles, policies, and trust relationships, with examples you can paste into your AWS account today. 4 min read →
13. 33 Lambda Cold Starts What actually happens during a Lambda cold start, why some functions are worse than others, and the techniques that meaningfully reduce p99 latency in production. 5 min read →
14. 34 PrivateLink Understand AWS PrivateLink: interface endpoints, endpoint services, how it differs from VPC peering and Transit Gateway, and when to choose it for private connectivity. 5 min read →
15. 35 RDS vs Aurora vs DDB Trade-offs between RDS, Aurora, and DynamoDB across cost, scaling, latency, and operational overhead, with a concrete decision framework. 4 min read →
16. 36 Route 53 Policies Understand simple, weighted, latency, failover, geolocation, and multivalue routing policies in Amazon Route 53 with real examples. 4 min read →
17. 37 Secrets Manager A practical guide to AWS Secrets Manager: creating secrets, retrieving them from apps, automatic rotation, IAM access control, and choosing it over SSM Parameter Store. 4 min read →
18. 38 SQS DLQs Learn how to configure Amazon SQS dead-letter queues (DLQs) to isolate poison messages, debug consumer failures, and protect your workers from infinite retry loops. 4 min read →
19. 39 SQS vs SNS vs EB A practical comparison of SQS queues, SNS topics, and EventBridge buses. When to use each, how they combine, and patterns that scale in production. 4 min read →
20. 40 Step Functions Learn how AWS Step Functions coordinate Lambda, ECS, and SDK calls into reliable state machines, with patterns for retries, parallelism, and error handling. 4 min read →