Azure函数: We are not able to retrieve the runtime master key

Question

Azure Functions 错误。我在门户中收到错误

Error:

We are not able to retrieve the runtime master key. Please try again later.
Session Id: d13fceebd4ea4cb1b7fb3d3829dd1406

Timestamp: 2017-08-24T20:04:23.555Z

我已经尝试了这里的所有建议: https://blogs.msdn.microsoft.com/jpsanders/2017/05/09/function-app-error-we-are-not-able-to-retrieve-the-runtime-master-key/

我使用的是运行时版本 1.0.10917，但我尝试过 ~1 并得到了相同的结果。

当我从门户中删除该函数然后重新创建它时，似乎会发生这种情况。对于我们拥有的每一个函数，它都会在这之后发生。第一次创建该函数时，它似乎可以工作。

Answer 1

这是您遇到的异常

System.Security.Cryptography.CryptographicException : The payload was invalid.
   at Microsoft.AspNetCore.DataProtection.Cng.CbcAuthenticatedEncryptor.DecryptImpl(Byte* pbCiphertext,UInt32 cbCiphertext,Byte* pbAdditionalAuthenticatedData,UInt32 cbAdditionalAuthenticatedData)
   at Microsoft.AspNetCore.DataProtection.Cng.Internal.CngAuthenticatedEncryptorBase.Decrypt(ArraySegment`1 ciphertext,ArraySegment`1 additionalAuthenticatedData)
   at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.UnprotectCore(Byte[] protectedData,Boolean allowOperationsOnRevokedKeys,UnprotectStatus& status)
   at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.DangerousUnprotect(Byte[] protectedData,Boolean ignoreRevocationErrors,Boolean& requiresMigration,Boolean& wasRevoked)
   at Microsoft.Azure.WebJobs.Script.WebHost.DataProtectionKeyValueConverter.Unprotect(Key key) at C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\DataProtectionKeyValueConverter.cs : 43
   at Microsoft.Azure.WebJobs.Script.WebHost.SecretManager.ReadHostSecrets(HostSecrets hostSecrets) at C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\SecretManager.cs : 383
   at async Microsoft.Azure.WebJobs.Script.WebHost.SecretManager.GetHostSecretsAsync() at C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\Security\SecretManager.cs : 83
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at async Microsoft.Azure.WebJobs.Script.WebHost.WebJobsSdkExtensionHookProvider.GetOrCreateExtensionKey(String extensionName) at C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\WebHooks\WebJobsSdkExtensionHookProvider.cs : 71
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.Azure.WebJobs.Script.WebHost.WebJobsSdkExtensionHookProvider.GetExtensionWebHookRoute(String extensionName) at C:\azure-webjobs-sdk-script\src\WebJobs.Script.WebHost\WebHooks\WebJobsSdkExtensionHookProvider.cs : 64
   at Microsoft.Azure.WebJobs.Extensions.EventGrid.EventGridExtensionConfig.Initialize(ExtensionConfigContext context)
   at Microsoft.Azure.WebJobs.Host.Executors.JobHostConfigurationExtensions.InvokeExtensionConfigProviders(ExtensionConfigContext context)
   at Microsoft.Azure.WebJobs.Host.Executors.JobHostConfigurationExtensions.CreateStaticServices(JobHostConfiguration config)
   at Microsoft.Azure.WebJobs.JobHost.PopulateStaticServices()
   at Microsoft.Azure.WebJobs.Script.Utility.CreateMetadataProvider(JobHost host) at C:\azure-webjobs-sdk-script\src\WebJobs.Script\Utility.cs : 362
   at Microsoft.Azure.WebJobs.Script.ScriptHost.LoadCustomExtensions() at C:\azure-webjobs-sdk-script\src\WebJobs.Script\Host\ScriptHost.cs : 670
   at Microsoft.Azure.WebJobs.Script.ScriptHost.Initialize() at C:\azure-webjobs-sdk-script\src\WebJobs.Script\Host\ScriptHost.cs : 510
   at Microsoft.Azure.WebJobs.Script.ScriptHost.Create(IScriptHostEnvironment environment,IScriptEventManager eventManager,ScriptHostConfiguration scriptConfig,ScriptSettingsManager settingsManager) at C:\azure-webjobs-sdk-script\src\WebJobs.Script\Host\ScriptHost.cs : 937

用户很难发现他们的应用程序的这些错误，因为运行时不会将它们记录在用户体验可以查询的任何地方。

此问题正在跟踪异常:https://github.com/Azure/azure-webjobs-sdk-script/issues/1832

我们仍然不完全确定为什么会发生这种情况。您是否偶然从另一个应用程序重新发布了 key ？ (编辑:或删除并重新创建具有相同名称的应用程序)这些 key 由功能应用程序特定 key 加密，并且在该上下文之外无法工作。

修复:从 Fabio Cavalcante 复制

can you delete (or rename) the host.json file in d:\home\data\Functions\secrets\ and retry? This will force the runtime to re-create those secrets for that environment. Keep in mind that this would also change your master and default keys.