PyChromeless

Python (selenium) Lambda Chromium Automation (naming pending)

PyChromeless allows to automate actions to any webpage from AWS Lambda. The aim of this project is to provide the scaffolding for future robot implementations.

But... how?

All the process is explained here. Technologies used are:

• Python 3.6
• Selenium
• Chrome driver
• Small chromium binary

Requirements

Install docker and dependencies:

• make fetch-dependencies
• Installing Docker
• Installing Docker compose

Working locally

To make local development easy, you can use the included docker-compose. Have a look at the example in lambda_function.py: it looks up “21 buttons” on Google and prints the first result.

Run it with: make docker-run

Building and uploading the distributable package

Everything is summarized into a simple Makefile so use:

• make build-lambda-package
• Upload the build.zip resulting file to your AWS Lambda function
• Set Lambda environment variables (same values as in docker-compose.yml)
  • PYTHONPATH=/var/task/src:/var/task/lib
  • PATH=/var/task/bin
• Adjust lambda function parameters to match your necessities, for the given example:
  • Timeout: +10 seconds
  • Memory: + 250MB

Shouts to

• Docker lambda
• Lambdium
• Serverless Chrome repo & medium post
• Chromeless

Contributors

• Jairo Vadillo (@jairovadillo)
• Pere Giro ()
• Ricard Falcó (@ricardfp)