@developmentseed/task-runner

Background

AWS Lambda functions are great but they don't fit a lot of processing and operation requirements. If your processing takes more than 5 minutes or it requires more memory and CPU provided in the Lambda environment, you must rethink where and how to deploy your code.

The ECS task-runner and task-starter solves this problem by enabling you to run an existing lambda function as an ECS task on a Fargate box. This approach requires having an existing lambda function in the first place.

Task Runner

The task runner is a Docker image that you can use inside the ECS environment to run existing Lambda function as ECS tasks. When a given a Lambda function ARN, the docker image downloads the zip file of the Lambda function and runs at in a similar environment to Lambda.

CLI

You can use the task-runner's CLI to invoke a Lambda Function with the docker environment by running:

 $ task-runner invoke <lambda arn> --profile <aws profile> --event <input to the lambda> --region <aws region>

You can run the same command in docker by running:

 $ docker run --rm -it developmentseed/lambda-ecs-runner:latest invoke <lambda arn> --profile <aws profile> --event <input to the lambda> --region <aws region>