Immutable builds using AWS S3, Cloudfront and Github actions

• Releases are built and deployed using Github Actions workflows
• Builds are served from S3 bucket through Cloudfront CDN
• Builds are immutable - meaning easy to cache (don't need cache invalidations - cost less) and easy to revert

Setup

AWS Setup:

• AWS S3 Bucket
• AWS Cloudfront distribution that:
  • Points to the S3 bucket
  • Has Default Root Object set to index.html (placeholder, will be overwritten by actual index.html in the first github workflow)
  • Has 403 and 404 error pages setup to point to index.html - needed for client-side routing to work. (placeholder, will be overwritten by actual index.html in the first github workflow)

Secrets needed for the workflow:

AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY
AWS_BUCKET_ID
AWS_CLOUDFRONT_DISTRIBUTION_ID

Running release workflow locally

Requires Docker and https://github.com/nektos/act to be installed locally

• Setup secrets file .github/.secrets in a .env style format
• npm run act