如何为Azure函数应用（Consumption Plan）扩容部署可用文件存储

我的函数应用采用Consumption Plan，部署代码量较大的C#解决方案时出现磁盘空间不足错误：

Failed to proceed.
Status code 500,
"{
"Message":"An error has occurred.",
"ExceptionMessage":"There is not enough space on the disk.\r\n...
}"

完整错误日志：

Start Function App deployment...
Publishing project AzureAPI to a folder...
Using configuration: Release and platform: Any CPU
Creating AzureAPI project ZIP...
Project ZIP is created: ################\Temp\rider-publish152863613940775224416698747154899348419.zip
Starting deployment...
Trying to deploy artifact to s################...
Failed to proceed. Status code 500, "{"Message":"An error has occurred.","ExceptionMessage":"There is not enough space on the disk.\r\n","ExceptionType":"System.IO.IOException","StackTrace":"   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)\r\n   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)\r\n   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)\r\n   at System.IO.Abstractions.FileWrapper.Create(String path)\r\n   at Kudu.Services.ByteRanges.HttpRequestMessageExtensions.<CopyToAsync>d__1.MoveNext() in C:\__w\1\s\Kudu.Services\ByteRanges\HttpRequestMessageExtensions.cs:line 50\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at Kudu.Services.Deployment.PushDeploymentController.<>c__DisplayClass16_0.<<PushDeployAsync>b__0>d.MoveNext() in C:\__w\1\s\Kudu.Services\Deployment\PushDeploymentController.cs:line 522\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at Kudu.Contracts.Infrastructure.LockExtensions.<LockOperationAsync>d__6.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at Kudu.Services.Infrastructure.LockExtensions.<LockHttpOperationAsync>d__1.MoveNext() in C:\__w\1\s\Kudu.Services\Infrastructure\LockExtensions.cs:line 30\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at Kudu.Services.Deployment.PushDeploymentController.<PushDeployAsync>d__16.MoveNext() in C:\__w\1\s\Kudu.Services\Deployment\PushDeploymentController.cs:line 501\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at Kudu.Services.Deployment.PushDeploymentController.<ZipPushDeploy>d__12.MoveNext() in C:\__w\1\s\Kudu.Services\Deployment\PushDeploymentController.cs:line 103\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Threading.Tasks.TaskHelpersExtensions.<CastToObject>d__3`1.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"}".

为什么Scale up选项灰色？ #

消费计划函数应用的「Scale up」选项针对的是计算资源，而磁盘空间不足问题来自函数应用关联的Azure存储账户中的文件共享，因此需要去存储账户操作，而非函数应用的Scale up页面。

步骤1：找到函数应用关联的存储账户 #

• 打开Azure门户中的目标函数应用
• 左侧导航「设置」→「配置」→「应用程序设置」
• 找到AzureWebJobsStorage配置项，值里的AccountName=XXX中的XXX就是存储账户名称

步骤2：扩容文件共享（门户操作） #

• 搜索并打开上述存储账户
• 左侧导航「数据存储」→「文件共享」
• 找到函数应用使用的文件共享（通常是scm-releases，也可通过WEBSITE_CONTENTAZUREFILECONNECTIONSTRING配置确认）
• 选中该共享，点击顶部「更改配额」
• 输入5（单位GB），点击「确定」完成扩容

步骤3：CLI方式扩容（可选） #

如果门户操作受限，用Azure CLI执行以下命令：

# 替换为你的存储账户名和文件共享名
az storage share update --name <文件共享名称> --account-name <存储账户名称> --quota 5

步骤4：验证与重试 #

扩容完成后无需额外关联操作，函数应用会自动使用扩容后的共享。若部署仍失败，重启函数应用后重试。

内容的提问来源于stack exchange，提问作者FluidMechanics Potential Flows