Can I access a on-prem network file share drive from Azure Functions or Azure WebJobs?

Question

I have recently started work on Azure cloud and hosted our web app to Azure as app service. As part of project this app service should access a on-prem network file share. Later I came to know that standard smb ports like 139, 445 are blocked to access from App service. Hence App Service can't access on-prem network file share.

Does this restriction there for Azure Functions and Azure WebJobs as well? Can I access on-prem network file share from Azure Functions and Azure WebJobs?

Answer 1

Hi @Anirud Thapliyal

Azure webjobs is a feature of the azure app service and functions can also be run under app service plan. Depending on the plan utilized you can have different networking options available as mentioned here in the documentation. Below are some options which I can think of that you can use based on your requirements.

• As mentioned in this post by Ajay, due to Sandbox environment restrictions connecting to on-premises file share is not supported. You can use the REST functionality as suggested by him.
• You can use Azure Logic App to connect to your on-premises File-Share using on-premises data gateway and perform actions/triggers according to your requirements. In addition to it you can also connect your Function App to your Logic App if additional requirements are there.