S3
+2
Oct 7, 2026
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9 min read
SL#114 - AWS Services (11/120) - Amazon S3: Strong Consistency, Eleven Nines, and the Request Bill Nobody Models
The definition, the cost model, the limits, and a versioned bucket with lifecycle that you build and cost out to the cent.
Tutorial
+2
Oct 5, 2026
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11 min read
SL#112 - AWS Services (9/120) - AWS Elastic Beanstalk: The Original PaaS in 2026, What It Still Does Well, and the Honest Way Out
Elastic Beanstalk is a deployment engine that wraps EC2, an Auto Scaling group and a load balancer in one object. This reference covers the model, the limits, and a runnable build with a rolling deploy and a blue/green swap.
Tutorial
+2
Oct 4, 2026
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11 min read
SL#111 - AWS Services (8/120) - Amazon Lightsail: The Fixed-Price On-Ramp, and the Day You Migrate Out
When Lightsail is the right answer, when it is a trap you will migrate out of, and a script that builds a server, measures its CPU budget, and proves you can leave.
Tutorial
+2
Oct 3, 2026
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10 min read
SL#109 - AWS Services (7/120) - AWS App Runner: Closed to New Customers, and the ECS Express Mode Migration
App Runner no longer accepts new customers. What it was, what replaced it, what the bill looks like, and a working migration to ECS Express Mode you can run for about a dime.
Tutorial
+2
Oct 2, 2026
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9 min read
SL#108 - AWS Services (6/120) - AWS Batch: Queues, Compute Environments, and the Array Job That Does the Fan-Out
AWS Batch is a job queue bolted to a capacity manager. The definition, the cost model, the limits, and a 20-way array job on Fargate that costs about a cent.
Tutorial
+2
Oct 1, 2026
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11 min read
SL#107 - AWS Services (5/120) - AWS Fargate: Serverless Containers and the Per-Task Pricing Math
Fargate is not a cheaper or simpler EC2. It is a different billing unit, one task at a time. This article gives you the model, the real prices, and a script that runs the same container on x86, ARM and Spot and tells you what each run cost.
Tutorial
+2
Sep 30, 2026
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11 min read
SL#106 - AWS Services (4/120) - Amazon EKS: Managed Kubernetes and the Data Plane It Doesn't Manage
EKS sells you a managed control plane for $0.10/hr. What 'managed' excludes - the data plane - is the story. We build an Auto Mode cluster, wire a workload with Pod Identity, and cost every piece.
ECS
+2
Jul 23, 2026
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10 min read
SL#105 - AWS Services (3/120) - Amazon ECS: Cluster, Task, Service, and the Rolling Deploy Underneath
Three nouns everyone confuses, one deploy model that quietly changed in 2025, and a containerized API you ship to ECS on Fargate in an afternoon. Plan for 45 minutes and about ten cents of spend.
Tutorial
+2
Jul 22, 2026
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10 min read
SL#104 - AWS Services (2/120) - AWS Lambda: The Cold Start Is the Model, Not the Bug
What Lambda actually is, how the execution and concurrency model works, what it costs, the limits that bite at scale, and a hands-on build that provisions concurrency and measures the cold-start latency it removes. Plan for 60-90 minutes.
EC2
+2
Jul 21, 2026
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10 min read
SL#101 - AWS Services (1/120) - Amazon EC2: The Primitive Every Other AWS Service Is Built On
The definition-first reference for EC2: the instance model, the six ways to pay for it, the quotas that bite, and a hands-on build of a right-sized instance behind an Auto Scaling group with a warm pool. Plan for about 45 minutes and under a dollar.
AWS
+2
Jul 11, 2026
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7 min read
SL#98 - AWS AI Series (30/30) - The Capstone: The Full Architecture, the Real Bill, and What to Keep
Thirty tutorials, one running stack. This is the reference architecture we built, the monthly bill it produces at real traffic, and the honest decision guide for what to keep and what to delete.
AWS
+2
Jul 10, 2026
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10 min read
SL#97 - AWS AI Series (29/30) - Lock Down Your Agent Stack: A Security Audit With the Agentic AI Lens, IAM Boundaries, and Per-Step Guardrails
We ran an agent stack for 28 episodes. Now we audit it: import the Well-Architected Agentic AI Lens, write a Python auditor for IAM boundaries and wildcard policies, and add a per-step guardrail with the new InvokeGuardrailChecks API.
AWS
+2
Jul 9, 2026
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9 min read
SL#95 - AWS AI Series (28/30) - GenAI Observability End to End: Ship a CloudWatch Dashboard and a Quality-Regression Alarm for Your Agent
Your agent runs green while returning wrong answers. We wire an AWS Strands agent into CloudWatch GenAI Observability, then add the one signal the built-in metrics cannot give you: an online eval that scores live responses and fires a CloudWatch alarm when quality drops. Plan for about two hours.