add public version endpoint

src/Adliance.AzureBlobSimulator/Controllers/VersionController.cs

@@ -0,0 +1,15 @@
+using System.Reflection;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Adliance.AzureBlobSimulator.Controllers;
+
+[ApiController]
+public class VersionController() : ControllerBase
+{
+    [HttpGet("/version")]
+    public IActionResult HandleGetRequest()
+    {
+        var assemblyVersion = Assembly.GetAssembly(typeof(Program))?.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion;
+        return Ok($"v{assemblyVersion}");
+    }
+}

src/Adliance.AzureBlobSimulator/Middleware/AzureStorageAuthenticationMiddleware.cs

@@ -34,7 +34,8 @@ public async Task InvokeAsync(HttpContext context)
         var request = context.Request;
 
         // Allow unauthenticated health checks
-        if (request.Path.StartsWithSegments("/health", StringComparison.OrdinalIgnoreCase))
+        if (request.Path.StartsWithSegments("/health", StringComparison.OrdinalIgnoreCase)
+            || request.Path.StartsWithSegments("/version", StringComparison.OrdinalIgnoreCase))
         {
             await _next(context);
             return;

test/Adliance.AzureBlobSimulator.Tests/Controllers/VersionControllerTests.cs

@@ -0,0 +1,17 @@
+using System.Net;
+using Microsoft.AspNetCore.Mvc.Testing;
+
+namespace Adliance.AzureBlobSimulator.Tests.Controllers;
+
+public class VersionControllerTests(WebApplicationFactory<Program> factory) : ControllerTestBase(factory)
+{
+    [Fact]
+    public async Task GetVersionTest()
+    {
+        var client = Factory.CreateClient();
+        client.BaseAddress = BlobServiceClient.Uri;
+        var response = await client.GetAsync("/version");
+        Assert.StartsWith("v", await response.Content.ReadAsStringAsync());
+        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
+    }
+}