How to get a .NET 8.0 (isolated) function app to appear in my release pipeline, or successfully deploy from Visual Studio

Question

How to get a .NET 8.0 (isolated) function app to appear in my release pipeline, or successfully deploy from Visual Studio

Richard Traviolia 0

I made a new .NET 8.0 Isolated Function App on by B1 App Service plan three days ago and I'm used to being able to select my Azure Subscription, then "Function App on Windows", and then select the resource from the dropdown, but I see nothing in there. I tried to deploy to the function app directly from Visual Studio, and it reports success, but it does not have any of my functions listed when I go to the resource, and the Activity Log is full of Sync Web Apps Functions Triggers failures with this JSON(I scrubbed IDs, and didn't include what looked like irrelevant earlier information from the JSON):

"status": {
        "value": "Failed",
        "localizedValue": "Failed"
    },
    "subStatus": {
        "value": "BadRequest",
        "localizedValue": "Bad Request (HTTP Status Code: 400)"
    },
    "submissionTimestamp": "2023-10-01T05:07:10Z",
    "subscriptionId": "SUBSCRIPTIONID",
    "tenantId": "TENANTID",
    "properties": {
        "statusCode": "BadRequest",
        "serviceRequestId": null,
        "statusMessage": "{\"Code\":\"BadRequest\",\"Message\":\"Encountered an error (ServiceUnavailable) from host runtime.\",\"Target\":null,\"Details\":[{\"Message\":\"Encountered an error (ServiceUnavailable) from host runtime.\"},{\"Code\":\"BadRequest\"},{\"ErrorEntity\":{\"Code\":\"BadRequest\",\"Message\":\"Encountered an error (ServiceUnavailable) from host runtime.\"}}],\"Innererror\":null}",
        "eventCategory": "Administrative",
        "entity": "/subscriptions/SUBSCRIPTIONID/resourceGroups/RESOURCEGROUP/providers/Microsoft.Web/sites/FUNCTIONAPPNAME/host/default",
        "message": "Microsoft.Web/sites/host/sync/action",
        "hierarchy": "TENANTID/SUBSCRIPTIONID"
    },
    "relatedEvents": []

I set up build/release pipelines for .NET 6.0 In-Process function apps running on more powerful App Service Plans all the time without issues. Is this a .NET 8.0 preview issue, or have I messed up some configuration? I feel like I should at least be able to see the function app in the release pipeline to set it up, even if I get an error on/after deployment.

MuthuKumaranMurugaachari-MSFT 22,441 Reputation points Moderator

2023-10-03T13:10:56.5933333+00:00

Richard Traviolia Just a follow up to see if the comment helped with your question. Feel free to reach out for any questions.

usama malik 5

To get a .NET 8.0 isolated function app to appear in your release pipeline or successfully deploy it from Visual Studio, you can follow these general steps:

**1. Create the Isolated Function App:**
   - Make sure you have created the .NET 8.0 isolated function app using tools like Azure Functions Project in Visual Studio or Azure CLI.
   
**2. Set Up Your Code Repository:**
   - Ensure your function app code is stored in a version control system like Git (GitHub, GitLab, Bitbucket, etc.). This is important for integration with your release pipeline.

**3. Configure Deployment in Visual Studio:**
   - Open your .NET project in Visual Studio.
   - Right-click on the project and select "Publish."
   - Configure the publish settings, specifying the target Azure Function App, and set the appropriate deployment options.

**4. Configure Your Release Pipeline:**
   - In your Azure DevOps or CI/CD tool of choice, create a release pipeline.
   - Add a stage to the pipeline for deploying the function app.
   - Configure the deployment job to deploy from the code repository to the Azure Function App.

**5. Define Environment Variables and Secrets:**
   - Ensure that any environment variables or secrets required for your function app are correctly configured within the release pipeline or Azure Key Vault.

**6. Test the Deployment:**
   - Run a test deployment to verify that the function app deploys successfully from your release pipeline. You may need to troubleshoot any errors or issues that arise during deployment.

**7. Monitor and Automate:**
   - Consider setting up monitoring and alerting for your function app to ensure it runs smoothly in production.
   - Automate the deployment process as much as possible to enable continuous integration and continuous deployment (CI/CD).

**8. Documentation and Troubleshooting:**
   - Document your deployment process and create troubleshooting guides for potential issues that may arise during deployment.

Keep in mind that the specific steps and tools you use may vary depending on your development environment, hosting platform, and CI/CD setup. It's essential to consult the documentation for your specific hosting platform and CI/CD tool for detailed instructions on configuring deployments.

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MuthuKumaranMurugaachari-MSFT 22,441 Reputation points Moderator

2023-10-03T13:10:56.5933333+00:00

Richard Traviolia Just a follow up to see if the comment helped with your question. Feel free to reach out for any questions.

Answer 1

Richard Traviolia Thanks for posting your question in Microsoft Q&A. Based on the description, you are looking to deploy .NET 8 Preview version in Windows OS plan and faced some issues with the deployment.

Have you already validated if the framework version (such as v8.0) is set correctly before deployment? Check out instructions in Using a preview .NET SDK as well as Considerations for using .NET preview versions doc to configure which SDK version to use in global.json.

If you still face the issue, please open a new GitHub issue as described in https://github.com/Azure/azure-functions-dotnet-worker/issues/1644#issuecomment-1721391444 with details such as function core tools version, VS version, runtime, exception details etc. That would help in investigating and assisting you further.

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How to get a .NET 8.0 (isolated) function app to appear in my release pipeline, or successfully deploy from Visual Studio

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