Terraform-provider-azurerm: Linux consumption plan apps created using terraform return 503 because of WEBSITE_CONTENT* settings

[mlazowik]

If WEBSITE_CONTENTSHARE and WEBSITE_CONTENTAZUREFILECONNECTIONSTRING app settings are set for Linux Consumption, the datarole will throw AzureFiles mounting blocked for site and both host and scm worker will return 503.

Source.

Should be restored once the backend is fixed, as per:
https://github.com/Azure/azure-functions-core-tools/issues/1439

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Terraform (and AzureRM Provider) Version

Terraform v0.12.13
azurerm v1.39.0

Affected Resource(s)

• azurerm_function_app

Terraform Configuration Files

Anything that sets kind="Linux" in the resource plan.

Expected Behavior

Mentioned settings not present, empty function app loads the welcome page (/) properly.

Actual Behavior

Settings preset, app returns 503.

Steps to Reproduce

1. Create any Linux consumption plan app tf file.
2. terraform apply

References

• Removal from core tools: https://github.com/Azure/azure-functions-core-tools/pull/1437
• Removal from cli: https://github.com/Azure/azure-cli/issues/9027
• these are already removed for app service plan deployments: #1453
• the logic is here: https://github.com/terraform-providers/terraform-provider-azurerm/blob/12226526ad2bfbd88b443e9842b4f37c6e8ee6f0/azurerm/resource_arm_function_app.go#L669
• https://github.com/Azure/azure-functions-core-tools/issues/1439

[robertlagrant]

@xuzhang3 - is this likely to be fixed soon? I'm hitting the problem as well. I'm happy to help test.

[borancar]

@robertlagrant, I've raised a PR that does what's requested here, however I'm not sure that it will resolve the issue fully and further unknown changes might be needed. Even without WEBSITE_CONTENTSHARE and WEBSITE_CONTENTAZUREFILECONNECTIONSTRING, my Linux Consumption plan app still couldn't get its requirements installed from requirements.txt.

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