AWS SAM CLI adds BuildKit support for AWS Lambda functions packaged as container images

Update SAM CLI to version 1.159.0 or later and configure the --use-buildkit flag with sam build to leverage advanced BuildKit features for more efficient Lambda function container image builds, reducing development toil and improving image optimization.

Adopt BuildKit support in SAM CLI to enable multi-stage builds, improved caching, and cross-architecture builds for Lambda functions, resulting in smaller, more secure, and performant container images.

Evaluate adopting BuildKit support in SAM CLI to achieve faster container image builds, reduced rebuild times, and optimized Lambda function images, leading to improved developer productivity and cost efficiency in cloud operations.