Updating Azure Function Environment Variables with the Azure CLI

Log in to the Azure Portal using the username and password supplied by the lab.

1. Open a browser.
2. Navigate to the provided Azure Portal URL.
3. Use the supplied username and password to authenticate.

1. Take note of the Location of the lab-generated resources as you will need this later in the lab.

2. From the Overview page, click on the function name starting with fa-.

3. From the bottom of 1. Click + Create.

4. Under Create function, click HTTP trigger, and click Create.

5. Once created, in the left-hand menu, click Code + Test.

6. Starting from Line 8 and going down, delete the existing code.

7. Replace the code with the following:

   public static async Task<IActionResult> Run(HttpRequest req, ILogger log)
   {
       log.LogInformation("Azure Function Demo - Accessing Environment variables");
       var customSetting =  Environment.GetEnvironmentVariable("MySetting", EnvironmentVariableTarget.Process);
       log.LogInformation(customSetting);
       return new OkObjectResult($"{customSetting}");
   }
   

8. Click Save.

9. Click Test/Run

10. Click the popup at the top to accept CORS. Then click Run.

11. Review the Logs at the bottom of the page and check for any errors.

1. Using the navigation links at the top of the page, return to the function.
2. In the left-hand menu, under Settings, click Configuration.
3. Click + New application setting
4. In the Name box, enter "MySetting".
5. In the Value box, enter "Set in the portal".
6. Click OK.
7. Click Save.
8. Click Continue.

1. In the left-hand menu, under Functions, click Functions.
2. Click HttpTrigger1.
3. Click Code + Test.
4. Click Test/Run and review the HTTP response content.

1. Using the icon in the top-right corner of the page, activate the Cloud Shell.

2. When prompted, click PowerShell.

3. Click Show advanced settings.

4. For Region, select the same region that the lab-generated resources were created in.

5. Under Storage account, select Use existing.

6. Under File share, select Create new and enter "shell" for the name.

7. Click Create storage.

8. Retrieve the function app name and verify the information:

   $functionapp = (Get-AzFunctionApp).name
   

   $functionapp
   

9. Retrieve the resource group name and verify the information:

   $resourcegroup = (Get-AzResourceGroup).ResourceGroupName
   

   $resourcegroup
   

10. Update the application setting to "Set with PowerShell CLI".

    Update-AzFunctionAppSetting -Name $functionapp -ResourceGroupName $resourcegroup -AppSetting @{"MySetting" = "Set with PowerShell CLI"}
    

1. Back on the Code + Test page, click Run.
2. Verify the updated output.
3. In the top-left corner of the Cloud Shell, click the PowerShell dropdown menu, and switch to Bash.
4. When prompted, click Confirm.
5. Set the function app name:

   funcappname=$(az functionapp list --query "[0].name" -o tsv)
   

6. Set the resource group name:

   group=$(az group list --query "[0].name" -o tsv)
   

7. Update the application setting to "Set with Bash CLI":

   az functionapp config appsettings set --name $funcappname -g $group --settings MySetting="Set with Bash CLI"
   

8. Back on the Code + Test page, click Run.
9. Verify the updated output.

Conclusion

Congratulations, you've completed this hands-on lab!