Azure Function 插槽交换前的健康检查？

Question

I have a function app with a staging slot. I'd like to be able to deploy to the staging slot, and have the app perform an auto swap to the production slot. In the docs for App Service, you're able to write custom warm-up, where "The swap operation waits for this custom warm-up to finish before swapping with the target slot."

Is this possible with an Azure Function? There seem to be warm-up triggers as specified here , but nothing related to the swap operation.

My situation is on deployment to the staging slot, I'd like the swap to get a healthy response from a custom endpoint before continuing with the swap. Is this possible with Azure Functions?

Answer 1

We can Create a Function App in Azure portal (or) in Visual Studio. The swap operation can be done in Development Slot. As per my knowledge, healthy response from a custom endpoint before continuing with the swap production Slot Swap. This can be done in Health Check in Monitoring within azure function you created.

The azure function is created in Visual Studio by following the below steps.

• Open Visual Studio and Create a new project

• Search for azure function and select it.

• Enter the Project name and on click on create

• Create a Azure Function in C# and replace the code as mentioned below.

 using Microsoft.Azure.WebJobs;
    using Microsoft.Extensions.Logging;
    
    namespace WarmupSample
    {
    
        //Declare shared dependencies here
    
        public static class Warmup
        {
            [FunctionName("Warmup")]
            public static void Run([WarmupTrigger()] WarmupContext context,
                ILogger log)
            {
                //Initialize shared dependencies here
    
                log.LogInformation("Function App instance is warm 🌞🌞🌞");
            }
        }
    }

• Run the application locally

• On the Solution Explorer, right click on the project and Select the Publish option

• Select Azure and click on next

• Select Azure Function and click on next

• Create a new Azure Function

• Enter the Function name the subscription name, Resource group and Click on Create

• Select your Function app(which you just created) and click on Finish

• Click on Publish and go the Azure Functions in Portal

• Select the Azure Function you published in Azure account within azure portal

• In Azure function you created, Click on Swap Select the Source and Target and click on Swap.

• To configure custom endpoint for healthy response , go to the instance and check whether the app is Healthy or Unhealthy, following the below path with /

• Go to the instance to check if the app is Healthy and then select restart. You will get another window to test the health of other Function( if required).