Initial Windows port for K3s multi-exec binary (#7)

main_windows.go

@@ -0,0 +1,36 @@
+//go:build windows
+// +build windows
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/docker/docker/pkg/reexec"
+
+	"github.com/containernetworking/cni/pkg/version"
+	bv "github.com/containernetworking/plugins/pkg/utils/buildversion"
+	hostlocal "github.com/containernetworking/plugins/plugins/ipam/host-local"
+	"github.com/containernetworking/plugins/plugins/main/windows/win-bridge"
+	"github.com/containernetworking/plugins/plugins/main/windows/win-overlay"
+	"github.com/containernetworking/plugins/plugins/meta/flannel"
+)
+
+func main() {
+	os.Args[0] = filepath.Base(os.Args[0])
+	reexec.Register("flannel", flannel.Main)
+	reexec.Register("host-local", hostlocal.Main)
+	reexec.Register("win-bridge", winbridge.Main)
+	reexec.Register("win-overlay", winoverlay.Main)
+	reexec.Register("flannel.exe", flannel.Main)
+	reexec.Register("host-local.exe", hostlocal.Main)
+	reexec.Register("win-bridge.exe", winbridge.Main)
+	reexec.Register("win-overlay.exe", winoverlay.Main)
+	if !reexec.Init() {
+		_, _ = fmt.Fprintln(os.Stderr, bv.BuildString("plugins"))
+		_, _ = fmt.Fprintf(os.Stderr, "CNI protocol versions supported: %s\n", strings.Join(version.All.SupportedVersions(), ", "))
+	}
+}