Investigate, deploy and host pb-mathjax as a microservice

[dac514]

Investigate hosting options. Attempt to use AWS Lambda. Fallback to pm2 if Lambda attempt turns out badly.

• AWS: https://aws.amazon.com/lambda/
• PM2: http://pm2.keymetrics.io/docs/usage/quick-start/

Notes

AWS Lambda has some limits. 50G (maybe 75G?). Node versions are locked down, we can't pick and chose.

Express JS can do https, but I haven't done it (yet). If we proxy behind Nginx, or maybe if AWS Lambda has it's own https proxy solution going on, this isn't necessary.

Claudia.js seems like the easiest way to get our code into AWS Lambda but I haven't done anything except read the docs, so not sure:

Claudia.js and Lambda tutorial: https://attacomsian.com/blog/express-js-aws-lambda-claudia-serverless-app

[dac514]

Works on AWS Lambda using Claudia.js