docker-lambda
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aws-lambda-runtime-interface-emulator | docker-lambda | |
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4 | 8 | |
871 | 5,852 | |
1.7% | - | |
5.2 | 0.0 | |
8 days ago | over 1 year ago | |
Go | C# | |
Apache License 2.0 | MIT License |
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aws-lambda-runtime-interface-emulator
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Understanding the AWS Lambda Runtime API
Enter the aws-lambda-runtime-interface-emulator. This tool will allow us to emulate the AWS Lambda Runtime API locally (I suspect that the AWS SAM uses this tool under the hood as well). The aws-lambda-runtime-interface-emulator is designed to be used with Docker. Still, nothing stops us from containerizing our code for the sake of development and then, whenever we are ready, proceeding with deployment how we wish to. This local workflow is a bit more involved than the previous one, but it might be a valid alternative for those not using AWS SAM or are already using containers to deploy their Lambdas.
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Puppeteer performance in AWS Lambda Docker containers
There is a special tool to test AWS Lambda images locally. It's called AWS Lambda Runtime Interface Emulator (RIE). You have two options: include RIE in your image or install it locally. We don't need it in the production image, so let's choose the second option. We will download binary locally and mount it to our image if we need to test it.
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Ask HN: Does anyone else find the AWS Lambda developer experience poor?
Suggestions:
1. If you are building APIs and using Lambda functions as targets from an API Gateway API, look into libraries like serverless-wsgi (Python) or wai-handler-hal (Haskell) that translate between API Gateway request/response payloads and some kind of ecosystem-native representation. Then as long as you're writing code where all state gets persisted outside of the request/response cycle, you can develop locally as if you were writing for a more normal deploy environment.
2. Look into the lambda runtime interface emulator ( https://github.com/aws/aws-lambda-runtime-interface-emulator... ). This lets you send invoke requests to a fake listener and locally test the lambda more easily. While the emulator is provided in the AWS container base images, you don't need to run it inside a container if you're deploying with zip files. (AWS-provided container images automatically enable the emulator if not running in a lambda runtime environment, and using docker for port remapping is nice. But not at all required.)
3. Get really good at capturing all requests to external services, and mocking them out for local testing. Whether this is with free monads, effect systems, gateway classes will depend on your language and library choices.
docker-lambda
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There is framework for everything.
https://github.com/dherault/serverless-offline https://github.com/lambci/docker-lambda
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Bitbucket Pipeline build and deploy Lambda Container Image in AWS
Step 2: Push a container from your local machine to ECR. Currently, I use sample python lambda docker from https://github.com/lambci/docker-lambda.git
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How to publish and use AWS Lambda Layers with the Serverless Framework
You can see the following projects for some examples of using this plugin to build a layer. They all leverage Docker and the docker-lambda images to compile for AWS’s Lambda environment on any operating system:
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AWS linux container image
I end up using Lambda a lot so lambci is very useful for local testing: https://github.com/lambci/docker-lambda
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Should Lambda services be built in the cloud (vs. local environment)?
There are kind souls in this world who created this: https://github.com/lambci/docker-lambda
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Ask HN: Does anyone else find the AWS Lambda developer experience poor?
If all you need is the ability to run a lambda function's code locally you might interested in docker-lambda[1]. I haven't really used localstack or SAM but a couple of years ago when we needed to run some lambda functions locally for development docker-lambda worked well enough.
[1] https://github.com/lambci/docker-lambda
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How To Test AWS Lambda: Everything You Need To Get Started.
Docker Lambda — Docker Lambda is a tool which tries to replicate the AWS Lambda environment as closely as possible, but within a Docker container. Docker Lambda has support for most of the AWS Lambda run times.
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How To Debug AWS Lambda: A Detailed Overview
Want to emulate AWS environments? Try docker-lambda.
What are some alternatives?
Moto - A library that allows you to easily mock out tests based on AWS infrastructure.
serverless-offline - Emulate AWS λ and API Gateway locally when developing your Serverless project
serverless-application-model - The AWS Serverless Application Model (AWS SAM) transform is a AWS CloudFormation macro that transforms SAM templates into CloudFormation templates.
sst - Build modern full-stack applications on AWS
bref - Serverless PHP on AWS Lambda
aws-lambda-go - Libraries, samples and tools to help Go developers develop AWS Lambda functions.
supertest - 🕷 Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.
aws-lambda-python-runtime-interface-client
chrome-aws-lambda - Chromium Binary for AWS Lambda and Google Cloud Functions
examples - Serverless Examples – A collection of boilerplates and examples of serverless architectures built with the Serverless Framework on AWS Lambda, Microsoft Azure, Google Cloud Functions, and more.