generator-azure-web-app/lib/config/custom-environment-variables.json

Minimalist Web App generator: Webpack/Rollup + React + Express, deployable to vanilla Node.js, Azure App Service, and IIS

{
  "CONTENT_PATH"          : "APPSETTING_CONTENT_PATH",
  "HOT_MODULE_REPLACEMENT": "APPSETTING_HOT_MODULE_REPLACEMENT",
  "PORT"                  : "PORT"
}