Load Balancing: Move temporary files and make them configurable to allow for media upload when load balancing the backoffice

src/Umbraco.Core/Configuration/Models/HostingSettings.cs

@@ -25,6 +25,12 @@ public class HostingSettings
     [DefaultValue(StaticLocalTempStorageLocation)]
     public LocalTempStorage LocalTempStorageLocation { get; set; } = Enum.Parse<LocalTempStorage>(StaticLocalTempStorageLocation);
 
+    /// <summary>
+    /// Gets or sets a value for the location of temporary file uploads.
+    /// </summary>
+    /// <value>/umbraco/Data/TEMP/TemporaryFile if nothing is specified.</value>
+    public string? TemporaryFileUploadLocation { get; set; }
+
     /// <summary>
     ///     Gets or sets a value indicating whether umbraco is running in [debug mode].
     /// </summary>

src/Umbraco.Core/Hosting/IHostingEnvironment.cs

@@ -43,7 +43,12 @@ public interface IHostingEnvironment
     string LocalTempPath { get; }
 
     /// <summary>
-    ///     The web application's hosted path
+    /// Gets the location of temporary file uploads.
+    /// </summary>
+    public string TemporaryFileUploadPath => Path.Combine(LocalTempPath, "TemporaryFile");
+
+    /// <summary>
+    ///     The web application's hosted path.
     /// </summary>
     /// <remarks>
     ///     In most cases this will return "/" but if the site is hosted in a virtual directory then this will return the

src/Umbraco.Infrastructure/Persistence/Repositories/Implement/LocalFileSystemTemporaryFileRepository.cs

@@ -27,7 +27,7 @@ public LocalFileSystemTemporaryFileRepository(
 
     private DirectoryInfo GetRootDirectory()
     {
-        var path = Path.Combine(_hostingEnvironment.LocalTempPath, "TemporaryFile");
+        var path = _hostingEnvironment.TemporaryFileUploadPath;
 
         if (!Directory.Exists(path))
         {

src/Umbraco.Web.Common/AspNetCore/AspNetCoreHostingEnvironment.cs

@@ -132,6 +132,10 @@ public string LocalTempPath
         }
     }
 
+    /// <inheritdoc />
+    public string TemporaryFileUploadPath => _hostingSettings.CurrentValue.TemporaryFileUploadLocation
+                                             ?? Path.Combine(MapPathContentRoot(Core.Constants.SystemDirectories.TempData), "TemporaryFile");
+
     /// <inheritdoc />
     public string MapPathWebRoot(string path) => _webHostEnvironment.MapPathWebRoot(path);