localstack Archives - ITFROMZERO

Setting Up LocalStack with Docker Compose: Emulate AWS S3, SQS, and DynamoDB Locally

By IT From Zero October 4, 2026

A comparison of 3 AWS emulation approaches for local development and a step-by-step guide to configuring LocalStack with Docker Compose for offline testing and cloud cost savings.

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LocalStack: Simulate AWS S3, Lambda, DynamoDB Locally — Completely Free

By IT From Zero April 18, 2026

LocalStack lets you emulate AWS S3, Lambda, and DynamoDB locally using Docker, no real AWS account needed. This guide covers setup, a comparison with alternative approaches, and pytest integration for running integration tests completely offline.