docs: add default Lambda MicroVM runtime image example

[dubh3124]

Summary

Adds a public default Lambda MicroVM runtime image example for builders who need a starter image for Cognition's aws_lambda_microvm sandbox backend.

Changes

• Adds commented runtime source files for the AWS image zip: Dockerfile, server.py, and runtime README.md.
• Adds a packaging script that creates dist/cognition-lambda-microvm-runtime.zip without committing generated artifacts.
• Adds Terraform that uploads the zip to S3, creates the Lambda MicroVM image build role, creates the image via awscc_lambda_microvm_image, and outputs microvm_image_arn, microvm_image_version, and sandbox_profiles_yaml.
• Adds public docs for the default runtime image flow and cross-links from Lambda MicroVM setup/profile/runtime/troubleshooting docs.
• Updates examples navigation and the existing prebuilt-image sandbox example with a “Need an Image?” path.

Validation

• ./examples/aws-lambda-microvm-default-runtime/scripts/package-runtime.sh
• unzip -l examples/aws-lambda-microvm-default-runtime/dist/cognition-lambda-microvm-runtime.zip
• python3 -m py_compile examples/aws-lambda-microvm-default-runtime/runtime/server.py
• UV_CACHE_DIR=/tmp/uv-cache uv run --extra docs mkdocs build --strict
• terraform -chdir=examples/aws-lambda-microvm-default-runtime/terraform fmt -check
• terraform -chdir=examples/aws-lambda-microvm-default-runtime/terraform init -backend=false
• terraform -chdir=examples/aws-lambda-microvm-default-runtime/terraform validate
• terraform -chdir=examples/aws-lambda-microvm-sandbox/terraform fmt -check
• terraform -chdir=examples/aws-lambda-microvm-sandbox/terraform init -backend=false
• terraform -chdir=examples/aws-lambda-microvm-sandbox/terraform validate
• git diff --check
• Confirmed no generated zip, Terraform state, .terraform/, .terraform.lock.hcl, real account IDs, tokens, or secrets are committed.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
cognition	Ready	Preview, Comment	Jul 10, 2026 6:49pm