layerd 2022.8.10

AWS Lambda Layer Download.

layerd

Mount and Inspect Lambda Layers on the fly.

Lambda Layers created by a third party?

Need to check what was uploaded?

Use layerd.

Table of Contents

1. Installation
2. Usage
3. Configuration

Inspiration

Installation

$ pip3 install layerd

Usage

CLI

The layerd script is automatically added to your OS's Path. Call it with an ARN of a public lambda layer to mount the layer.

$ layerd <ARN>

Example:

$ layerd arn:aws:lambda:us-east-1:ACC:layer:LAYER-NAME:221

Layer:    LAYER-NAME
Region:   us-east-1
V:        221

Created: ./LAYER-NAME-221/

And pulled, unzipped, and mounted is the contents of the Lambda Layer.

$ tree
.
└── LAYER-NAME-221/
    └── ...

Python Inline

Very Simply: The layerd module has a layerd(arn: str) function to mount a Lambda Layer.

>>> from layerd import layerd

>>> layerd('arn:aws:lambda:us-east-1:ACC:layer:LAYER-NAME:335')
Layer:    LAYER-NAME
Region:   us-east-1
V:        335

Created: ./layer-cisco-otel-lambda-1/

Boom. You've mounted the Layer locally.

Configuration

Environment Variables are used to handle Configurations.