Question 120994 in Azure Question posted in
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Azure (Python) Function Code Deployment — Zip Deployments' trigger does not work

I have an Azure Linux Function App that I am deploying using TerraForm.

I have Linux Function + Consumption Plan.

The .zip function contains 3 .py scripts, one __init__.py and function.json.

The code deployment goes well, but the triggering does not work (the function is an Azure Storage Blob Trigger that fires when a specific file is uploaded on the blob container).

If I use the Azure Function Core Tools, the deployment goes well and the triggering works (I open the log streams/monitor and I see the function is constantly polling for objects inside that container).

If I use the CLI or TerraForm to upload the code, the triggering does not work.

Here is my code for the function_app:

resource "azurerm_linux_function_app" "blurring_fn_app" {
  name                        = "blurring-app-new4"
  location                    = var.location
  resource_group_name         = var.resource_group
  storage_account_name        = var.storage_account
  storage_account_access_key  = data.azurerm_key_vault_secret.sensestgaccountkey.value
  service_plan_id             = azurerm_service_plan.blurring_app_service_plan.id
  functions_extension_version = "~4"
  app_settings = {
    "APPINSIGHTS_INSTRUMENTATIONKEY" = "${data.azurerm_key_vault_secret.appinsightskey.value}"
    "AzureWebJobsStorage"            = "${data.azurerm_key_vault_secret.azure_web_jobs_storage.value}" 
    "ENABLE_ORYX_BUILD"              = true
    "SCM_DO_BUILD_DURING_DEPLOYMENT" = true
  }
  site_config {
    application_insights_key               = data.azurerm_key_vault_secret.appinsightskey.value
    application_insights_connection_string = data.azurerm_key_vault_secret.appinsightsconnstr.value
    application_stack {
      python_version = "3.9"
    }
  }
}

What I already tried:

  1. I tried using the func CLI deployment, which works for the uploading, but the function is not triggered.

  2. I tried using the "WEBSITE_RUN_FROM_PACKAGE"= azurerm_storage_blob.storage_blob_function.url (.zip of scripts uploaded to an Azure Storage Blob, this must be an URL in case of Linux apps + Consumption Plan), which works as well for the uploading, but the function is not triggered.

  3. I also tried using zip_deploy_file = path_to_local_zip as a parameter inside the azurerm_linux_function_app and it still did not work.

  4. For all 3 options above, I tried to manually sync the triggers : https://learn.microsoft.com/en-us/rest/api/appservice/web-apps/sync-function-triggers?tryIt=true&source=docs#code-try-0 but that did not work either.

The function.json is the following:

   {
      "scriptFile": "__init__.py",
      "bindings": [
        {
          "name": "myblob",
          "type": "blobTrigger",
          "direction": "in",
          "path": "blobcontainername/{name}.mp4",
          "connection": "AzureWebJobsStorage"
        }
      ]
    }

How can I make sure the function is triggered?

Tags:

2

Answers


  1. 0

    If I use the CLI or TerraForm to upload the code, the triggering does not work. I tried using the func CLI deployment, which works for the uploading, but the function is not triggered.

    Yes, it does work for me when i deploy it using Azure CLI using below commands:

    $u="C:UsersDownloadsBlobTrigger.zip"
az functionapp deployment source config-zip -g "name of resource grp" -n "function app name"  --src $u

    enter image description here

    Deployed:

    enter image description here

    After successfull deployment, I uploaded a file as below:

    enter image description here

    Then to test, I checked the logs as below:

    enter image description here

    I am providing an alternative way to do it, it may work for you or this answer may help for community. I have given in cli as you mentioned in question about not working with cli too.

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  2. 0

    Here are a few things you can try:

    1. Check the function app’s log files for any errors related to the
      function trigger. You can access the log files by going to the
      "Functions" tab in the Azure Portal, selecting your function app,
      and clicking on "Logs".

    2. Try deploying the function app without the function code to ensure
      that the function trigger is set up correctly. You can then add the
      function code and deploy it separately.

    3. Try using the WEBSITE_RUN_FROM_PACKAGE setting to deploy the
      function code. This setting allows you to deploy the function code
      as a zip file to a storage account and then reference it in the app
      settings. This can help ensure that the function code is deployed
      correctly and that the function trigger is synced with the function
      app.

    4. Double-check that the function.json file is included in the function
      code zip file. It should be located in the root directory of the zip
      file.

      Try synchronizing the function triggers manually using the Azure
      CLI. You can do this by running the following command:

      az functionapp deployment source sync -g <resource-group> -n <function-app-name> This command will sync the function app’s
      triggers with its deployed code.

    Please follow the above steps and let me know how the details.

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