Installing the Azure site extension and not able to copy the module to wwwroot folder

Question

Installing the Azure site extension and not able to copy the module to wwwroot folder

Ashish Kumar Singh 0

I am installing and Azure Site extension node agent, which have few dependencies under the Node_Modules. Now, i need to copy those under the site/wwwroot/node_modules/* folder. But is not getting copied.
Issue which i see
When you run from a package, the wwwroot folder is read-only and you receive an error if you write files to this directory. Files are also read-only in the Azure portal.

https://learn.microsoft.com/en-us/azure/azure-functions/run-functions-from-deployment-package

Any possible solution for copy the folder during the time of installing the siteextention?

Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-17T14:40:35.09+00:00
Hello @Ashish Kumar Singh,
When running Azure Functions from a deployment package, the wwwroot folder becomes read-only, which means you can't copy files directly into it during site extension installations. To handle this limitation, there are a few effective workarounds.

First, you can run your application from a ZIP package, which lets it operate without needing to unpack the files, thereby avoiding the read-only issue. Another option is to develop the app locally, including all required dependencies like node_modules, and then publish the entire project to Azure. This ensures all necessary files are included in the deployment.

If you need to copy files manually, you can use tools like Azure CLI or Azure PowerShell to upload them after deployment. Lastly, Kudu, a built-in tool for Azure App Services, gives you direct access to the file system, allowing manual uploads to the wwwroot directory.

For further clarification, please refer to the following documentations:

Run your functions from a package file in Azure

Manually install extensions

Hope this helps. Do let us know if you any further queries.
Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-18T13:22:54.8533333+00:00

Hi @Ashish Kumar Singh,
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-21T13:58:26.8333333+00:00

Hi @Ashish Kumar Singh,

If you had a chance to review my response to your question and found it helpful, please consider clicking "Upvote" on my post. Let us know if you need any further assistance.

Your answer

Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-17T14:40:35.09+00:00

Hello @Ashish Kumar Singh,
When running Azure Functions from a deployment package, the wwwroot folder becomes read-only, which means you can't copy files directly into it during site extension installations. To handle this limitation, there are a few effective workarounds.

First, you can run your application from a ZIP package, which lets it operate without needing to unpack the files, thereby avoiding the read-only issue. Another option is to develop the app locally, including all required dependencies like node_modules, and then publish the entire project to Azure. This ensures all necessary files are included in the deployment.

If you need to copy files manually, you can use tools like Azure CLI or Azure PowerShell to upload them after deployment. Lastly, Kudu, a built-in tool for Azure App Services, gives you direct access to the file system, allowing manual uploads to the wwwroot directory.

For further clarification, please refer to the following documentations:

Run your functions from a package file in Azure

Manually install extensions

Hope this helps. Do let us know if you any further queries.
Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-18T13:22:54.8533333+00:00

Hi @Ashish Kumar Singh,
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Ranashekar Guda 1,455 Reputation points Microsoft External Staff Moderator

2025-04-21T13:58:26.8333333+00:00

Hi @Ashish Kumar Singh,

If you had a chance to review my response to your question and found it helpful, please consider clicking "Upvote" on my post. Let us know if you need any further assistance.

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Installing the Azure site extension and not able to copy the module to wwwroot folder

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