AWS Lambda Layer Builder

If you've ever needed to build a Lambda layer quickly and easily, this tool is for you.

Prerequisites

• Docker
• AWS CLI

Installation

Copy the make-layer file to a location on your path, e.g. cp make-layer /usr/local/bin/.

Download and install with a single command by copying and pasting the following into a terminal:

INSTALL_LOC=/usr/local/bin/make-layer; curl https://raw.githubusercontent.com/aws-samples/aws-lambda-layer-builder/main/make-layer > $INSTALL_LOC; chmod +x $INSTALL_LOC

Usage

This tool can either take a list of packages to include in the layer, or a package manifest file valid for the specified runtime. It assumes the AWS CLI is already properly configured.

Run make-layer without parameters for full usage instructions.

Manifest File

make-layer NAME RUNTIME MANIFEST

• NAME is a valid Lambda layer name (letters, numbers, hyphens, and underscores)
• RUNTIME is a valid Lambda runtime identifier (e.g. nodejs14.x, python3.8)
• MANIFEST is the full path and filename of a valid manifest file. The following types are supported:
  • Node.js: package.json
  • Python: requirements.txt

If the manifest file is not found the parameters are presumed to be explicit package names.

Explicit List

make-layer NAME RUNTIME PACKAGE_1 [PACKAGE_2] ...

• PACKAGE_1, PACKAGE_2, etc. are the packages to be installed.

To-Do

• Add parameter for AWS profile to use (currently uses default, or honors AWS_PROFILE)
• Add support for additional runtimes

Contributing

Pull requests are welcomed. Please review the Contributing Guidelines and the Code of Conduct.

Security

See CONTRIBUTING for more information.

Authors

• Drew Mullen ([email protected])
• Jud Neer ([email protected])

License

This project is licensed under the MIT-0 License. See the LICENSE file for details.