https://www.cloudkaramchari.com/tags/cold-start/Recent content in Cold Start on CloudkaramchariHugo -- gohugo.ioencloudkaramchariThu, 10 Sep 2026 09:00:00 +0530https://www.cloudkaramchari.com/blog/aws-lambda-snapstart-for-container-images-setup-guide/Thu, 10 Sep 2026 09:00:00 +0530https://www.cloudkaramchari.com/blog/aws-lambda-snapstart-for-container-images-setup-guide/ <h1 id="aws-lambda-snapstart-for-container-images-setup-guide-and-cost-tradeoffs">AWS Lambda SnapStart for Container Images: Setup Guide and Cost Tradeoffs</h1> <p>If you package a Lambda function as a container image and it runs Java, Python, or .NET, you have probably eaten cold starts of several seconds every time traffic scaled up. SnapStart was the fix for that on <code>.zip</code> functions since 2022, but until now it flatly refused to work with container images. On <strong>September 2, 2026</strong> AWS closed that gap: SnapStart now supports functions deployed as container images built on the AWS Lambda base images for Java 11+, Python 3.12+, and .NET 8+. This post covers exactly how to turn it on, what it costs, and the snapshot behavior that will bite you if you enable it blindly.</p>