azure-functions-lighthouse

Azure Function to run Lighthouse on a Linux consumption plan using Puppeteer.

• NodeJS 16 LTS
• Azure Function app - Linux consumption plan (serverless)
• Endpoint authorized using App Keys, default function authLevel.
• Uses workerpool to ensure isolatation from other running lighthouse processes.

Instructions

ZipDeploy the project using remote build. Example .vscode settings use the Azure Function extension:

{
  "azureFunctions.deploySubpath": ".",
  "azureFunctions.projectLanguage": "TypeScript",
  "azureFunctions.projectRuntime": "~4",
  "debug.internalConsoleOptions": "neverOpen",
  "azureFunctions.scmDoBuildDuringDeployment": true
}

Access endpoint at https://<YOUR_FUNCTION_APP_URL>/api/LighthouseTrigger, either pass code=<YOUR_APP_KEY> as a get parameter or do a post request with the x-functions-key header using your created App Key. You also need to pass a url as get or post body parameter.

Modify LighthouseTrigger. Its config and output is only looking for the total transfer size, as that is what I needed for another project.

{
  transferSize: 123456
}

That's it. Happy performance auditing.