[QUERY] How to query for keys on demand during runtime?

Query/Question I’ve been using Azure in my ASP.NET Core application with no problems in the past months. I’ve configured the application to retrieve configuration options using config.AddAzureAppConfiguration(options =>... in Program.cs through .ConfigureWebHostDefaults(webBuilder => webBuilder.ConfigureAppConfiguration((hostingContext, config) => ... as instructed in https://docs.microsoft.com/en-us/azure/azure-app-configuration/quickstart-aspnet-core-app?tabs=core3x and it has been working great.

However, I currently understand that this approach is going to load the Azure vault keys into the IConfiguration object at startup. I needed to be able to retrieve those keys during execution, depending on some parameters that have been informed by the current logged in user. Also, it could happen that the keys that the current user is going to ask were not available when the website was first started, but had been added afterwards.

Therefore, my question is: How could I query the Azure Key Vault for the latest versions of a particular key string during program execution?

Environment:

• Name and version of the Library package used: [e.g. Azure.Storage.Blobs 12.2.0]:

Microsoft.AspNetCore.DataProtection.AzureKeyVault 3.1.10

• Hosting platform or OS and .NET runtime version (dotnet --info output for .NET Core projects): [e.g. Azure AppService or Windows 10 .NET Framework 4.8]

PM> dotnet --info .NET SDK (reflecting any global.json): Version: 5.0.101 Commit: d05174dc5a

Runtime Environment: OS Name: Windows OS Version: 10.0.18363 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\5.0.101\

Host (useful for support): Version: 5.0.1 Commit: b02e13abab

.NET SDKs installed: 2.2.207 [C:\Program Files\dotnet\sdk] 3.1.201 [C:\Program Files\dotnet\sdk] 3.1.300 [C:\Program Files\dotnet\sdk] 5.0.100-rc.2.20479.15 [C:\Program Files\dotnet\sdk] 5.0.100 [C:\Program Files\dotnet\sdk] 5.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed: Microsoft.AspNetCore.All 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 3.1.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 5.0.0-rc.2.20475.17 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 5.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 3.1.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 5.0.0-rc.2.20475.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 5.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.WindowsDesktop.App 3.1.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 3.1.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 5.0.0-rc.2.20475.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 5.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs: https://aka.ms/dotnet-download

• IDE and version : [e.g. Visual Studio 16.3]

Visual Studio 16.8.3

[pakrym]

Couple comments:

1. The IConfiguration abstraction is inherently eager-loading one. There is no per-key call that configuration providers get so there is no way for them to re-load individual values.
2. IConfiguration abstraction does have a Reload() method that allows you to reload all providers. See https://docs.microsoft.com/en-us/dotnet/api/microsoft.extensions.configuration.iconfigurationroot.reload?view=dotnet-plat-ext-5.0#Microsoft_Extensions_Configuration_IConfigurationRoot_Reload
3. KeyVault configuration provider also supports auto-reload.

configurationBuilder.AddAzureKeyVault(vaultUri, credential, new AzureKeyVaultConfigurationOptions()
            {
                ReloadInterval = TimeSpan.FromMinutes(5)
            });

[msftbot[bot]]

Hi @cesarsouza. There was a mistake and this issue was unintentionally flagged as a stale pull request. The label has been removed and the issue will remain active; no action is needed on your part. Apologies for the inconvenience.