lambci/docker-lambdaArchived
Docker Lambda
docker-lambda is a Docker-based serverless simulator and local emulator designed to replicate AWS Lambda runtime environments. It provides a system for executing serverless functions locally and mirroring cloud execution environments through containerized images.
The project includes a local API server that allows for function invocation via HTTP to eliminate cold starts during testing. It features a build tool for compiling native dependencies and packaging function code into deployment archives using specialized system images.
The environment supports mirroring shared dependency layers by mounting local directories and utilizes filesystem watching to enable hot reloading of function code. It also provides a mechanism to pass large event payloads via standard input to bypass command-line length limitations.
Features
- Local Lambda Simulation - Provides a Docker-based environment that simulates AWS Lambda runtimes locally for development and testing.
- Cloud Runtime Emulators - Implements a Docker-based emulator that mirrors AWS Lambda runtime environments.
- Environment-Consistent Build Images - Uses specialized containers with pre-installed headers to ensure native dependencies match the cloud environment.
- Layer Simulations - Implements local mirroring of shared dependency layers by mounting local directories into the container filesystem.
- Package Builders - Ships a tool to compile and zip function code for cloud deployment.
- Function Packaging - Provides a utility to compile native dependencies and package functions into deployment archives.
- Lambda Deployments - Implements packaging and deployment patterns specifically for AWS Lambda.
- Local Serverless Testing - Facilitates repeated local testing of serverless functions via an invocation API.
- Local Build Environment Mirroring - Replicates cloud execution environments, including runtime configurations, using Docker containers.
- Hot-Reloading - Monitors source files to automatically restart the runtime bootstrap process.
- Hot Code Reloading - Enables an iterative workflow by automatically restarting the runtime when code is modified.
- Container Directory Mounting - Binds local directories to container paths to simulate shared dependency layers.
- Local HTTP Servers - Provides a local HTTP server to trigger function execution for rapid testing.
- Lambda Layers - Simulates the use of shared library dependencies via replicated Lambda layer mounting.
- Deployment and DevOps - Docker images that replicate the AWS Lambda environment.
- Serverless Frameworks and Utilities - Replicates the live serverless environment for local testing.
