Appconfiguration: AzureAppConfiguration@2 task: does not support TrimKeyPrefix

[majorimi]

I'm trying to use File transform task in Azure Pipelines. And I'm providing variables from Azure App Configurations. By using AzureAppConfiguration@2 task to fetch config values dynamically.
According to Azure App Configurations it is recommended/possible to use application, region, etc discriminator key prefixes like:

• WebSite:Configs:data1
• RegionEU:Configs:data1

And in .NET Core these can be removed by using .TrimKeyPrefix(); However in AzureDevops AzureAppConfiguration@2 Task does not have this feature. So this task loads all Keys with full name and when I try to use variables in a File transform task that will fail. Since variables does not match to JSON path.

Is it possible to add a new property which would remove the give prefix form all loaded key? Like this trimKeyPrefix: "WebSite:"

- task: AzureAppConfiguration@2
      displayName: 'Get Azure App Configurations'
      inputs:
        azureSubscription: ''
        ConfigstoreName: ''
        KeyFilter: 'WebSite:*'
        Label: 'Development'
        * trimKeyPrefix: "WebSite:"

I have requested this in the "azure-pipelines-tasks" repo. Not sure why is this Task in a different repo?
https://github.com/microsoft/azure-pipelines-tasks/issues/12236#issue-556258774

[zhenlan]

@Yiming-Jia

[zhenlan]

@majorimi we will be looking into this. Thanks for the suggestion.

[majorimi]

Is there any update on this?

[zhenlan]

We will add support of this, it's still in the backlog though.

[majorimi]

Sounds good. Thank you.

[Yiming-Jia]

Hello @majorimi,

We just release a AzureDevOps task at version 2.10 for Azure AppConfiguration to support the TrimKeyPrefix.

[majorimi]

Thank you very much. I have tried it, works perfectly :)

My problem is that .NET Core and Azure Pipeline not really compatible... Using these variables in .NET Core with separator ':' and replacing in the pipeline with '.' is not possible. Posted this request here, but the other team is not really responsible:
https://github.com/microsoft/azure-pipelines-tasks/issues/12235