Our great sponsors
-
functions-for-platforms
Prototype of a node implementation of the workers-for-platform service from CloudFlare
-
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
-
-
I uploaded a working version of this project on GitHub, feel free to follow along with the code there if anything doesn't work as described in this post: https://github.com/Minivera/functions-for-platforms.
Download the content of this folder in the official Fission environment repository: https://github.com/fission/environments/tree/master/binary and copy the two .go files and the Dockerfile into a newly created image directory. Open the Dockerfile and replace its content with this code:
Workers for platforms are described as isolated and secure JavaScript environments where users can upload and execute JavaScript functions in a V8 environment. There is no Node.js - it runs in a pure JavaScript environment as if it was running in a browser, but without the DOM. This is not a Serverless Function in the sense that we have to answer to triggers like with a more traditional serverless environment (commonly implemented as express servers). Rather, Cloudflare gives us a set of functions we can use to listen to events and they'll execute the function whenever an event we listen to happens. Let's try building that.
After doing a lot of research, I ended up settling on the Fission.io framework to support this project. Fission is an open-source Serverless framework running in kubernetes. Think AWS Lambdas, but we are in control of every part of the infrastructure. Kubernetes gives us the power to define the environments the containers will be executed in, and any other resources they need. This gives us the control we need to be able to create our very own environment for executing arbitrary JavaScript through the V8 engine. Each function can be isolated as much as we need to and Fission is really great at giving us the ability to quickly create multiple environments.