Add ws2022 image/build to cri-containerd tests (microsoft#1160)

dcantah · web-flow · commit f099e34878c2 · 2021-12-01T10:47:06.000-08:00
* Add ws2022 image/build to cri-integration tests

This change adds a new case to the getWindowsServerCoreImage and
getWindowsNanoserverImage functions to return ws2022 on a ws2022 or higher
build. The higher case is because of some recent efforts to improve down-level
compatability for Windows container images. For reference, the ltsc2022 image
works on a win11 host without hypervisor isolation.

Signed-off-by: Daniel Canter &lt;dcanter@microsoft.com&gt;
diff --git a/test/cri-containerd/main_test.go b/test/cri-containerd/main_test.go
@@ -171,7 +171,16 @@ func getWindowsNanoserverImage(build uint16) string {
 		return "mcr.microsoft.com/windows/nanoserver:2004"
 	case osversion.V20H2:
 		return "mcr.microsoft.com/windows/nanoserver:2009"
+	case osversion.V21H2Server:
+		return "mcr.microsoft.com/windows/nanoserver:ltsc2022"
 	default:
+		// Due to some efforts in improving down-level compatibility for Windows containers (see
+		// https://techcommunity.microsoft.com/t5/containers/windows-server-2022-and-beyond-for-containers/ba-p/2712487)
+		// the ltsc2022 image should continue to work on builds ws2022 and onwards. With this in mind,
+		// if there's no mapping for the host build, just use the Windows Server 2022 image.
+		if build > osversion.V21H2Server {
+			return "mcr.microsoft.com/windows/nanoserver:ltsc2022"
+		}
 		panic("unsupported build")
 	}
 }
@@ -188,7 +197,16 @@ func getWindowsServerCoreImage(build uint16) string {
 		return "mcr.microsoft.com/windows/servercore:2004"
 	case osversion.V20H2:
 		return "mcr.microsoft.com/windows/servercore:2009"
+	case osversion.V21H2Server:
+		return "mcr.microsoft.com/windows/servercore:ltsc2022"
 	default:
+		// Due to some efforts in improving down-level compatibility for Windows containers (see
+		// https://techcommunity.microsoft.com/t5/containers/windows-server-2022-and-beyond-for-containers/ba-p/2712487)
+		// the ltsc2022 image should continue to work on builds ws2022 and onwards. With this in mind,
+		// if there's no mapping for the host build, just use the Windows Server 2022 image.
+		if build > osversion.V21H2Server {
+			return "mcr.microsoft.com/windows/servercore:ltsc2022"
+		}
 		panic("unsupported build")
 	}
 }
