[Backport release-1.34] Enable "k0s status" on Windows workers

cmd/root.go

@@ -15,6 +15,7 @@ import (
 	"github.com/k0sproject/k0s/cmd/kubeconfig"
 	"github.com/k0sproject/k0s/cmd/kubectl"
 	"github.com/k0sproject/k0s/cmd/start"
+	"github.com/k0sproject/k0s/cmd/status"
 	"github.com/k0sproject/k0s/cmd/stop"
 	"github.com/k0sproject/k0s/cmd/sysinfo"
 	"github.com/k0sproject/k0s/cmd/token"
@@ -46,6 +47,7 @@ func NewRootCmd() *cobra.Command {
 	cmd.AddCommand(kubectl.NewK0sKubectlCmd())
 	cmd.AddCommand(start.NewStartCmd())
 	cmd.AddCommand(stop.NewStopCmd())
+	cmd.AddCommand(status.NewStatusCmd())
 	cmd.AddCommand(sysinfo.NewSysinfoCmd())
 	cmd.AddCommand(token.NewTokenCmd())
 	cmd.AddCommand(validate.NewValidateCmd()) // hidden+deprecated

cmd/root_linux.go

@@ -9,7 +9,6 @@ import (
 	"github.com/k0sproject/k0s/cmd/keepalived"
 	"github.com/k0sproject/k0s/cmd/reset"
 	"github.com/k0sproject/k0s/cmd/restore"
-	"github.com/k0sproject/k0s/cmd/status"
 
 	"github.com/spf13/cobra"
 )
@@ -20,5 +19,4 @@ func addPlatformSpecificCommands(root *cobra.Command) {
 	root.AddCommand(keepalived.NewKeepalivedSetStateCmd()) // hidden
 	root.AddCommand(reset.NewResetCmd())
 	root.AddCommand(restore.NewRestoreCmd())
-	root.AddCommand(status.NewStatusCmd())
 }

cmd/status/status.go

@@ -1,5 +1,3 @@
-//go:build unix
-
 // SPDX-FileCopyrightText: 2021 k0s authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -9,6 +7,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"runtime"
 
 	"github.com/k0sproject/k0s/cmd/internal"
 	"github.com/k0sproject/k0s/pkg/component/status"
@@ -51,7 +50,14 @@ func NewStatusCmd() *cobra.Command {
 
 	pflags := cmd.PersistentFlags()
 	debugFlags.AddToFlagSet(pflags)
-	pflags.String("status-socket", "", "Full file path to the socket file. (default: <rundir>/status.sock)")
+	var socketDefault string
+	if runtime.GOOS == "windows" {
+		socketDefault = status.DefaultSocketPath
+	} else {
+		socketDefault = "<rundir>/status.sock"
+	}
+
+	pflags.String("status-socket", "", "Full path to the k0s status socket (default: "+socketDefault+")")
 
 	cmd.AddCommand(NewStatusSubCmdComponents())
 

cmd/worker/worker.go

@@ -18,9 +18,11 @@ import (
 	"github.com/k0sproject/k0s/internal/pkg/stringmap"
 	"github.com/k0sproject/k0s/internal/pkg/sysinfo"
 	"github.com/k0sproject/k0s/internal/supervised"
+	"github.com/k0sproject/k0s/pkg/build"
 	"github.com/k0sproject/k0s/pkg/component/iptables"
 	"github.com/k0sproject/k0s/pkg/component/manager"
 	"github.com/k0sproject/k0s/pkg/component/prober"
+	"github.com/k0sproject/k0s/pkg/component/status"
 	"github.com/k0sproject/k0s/pkg/component/worker"
 	workerconfig "github.com/k0sproject/k0s/pkg/component/worker/config"
 	"github.com/k0sproject/k0s/pkg/component/worker/containerd"
@@ -298,6 +300,27 @@ func (c *Command) Start(ctx context.Context, nodeName apitypes.NodeName, kubelet
 
 	addPlatformSpecificComponents(ctx, componentManager, c.K0sVars, controller, certManager)
 
+	if controller == nil {
+		// if running inside a controller, status component is already running
+		componentManager.Add(ctx, &status.Status{
+			Prober: prober.DefaultProber,
+			StatusInformation: status.K0sStatus{
+				Pid:        os.Getpid(),
+				Role:       "worker",
+				Args:       os.Args,
+				Version:    build.Version,
+				Workloads:  true,
+				SingleNode: false,
+				K0sVars:    c.K0sVars,
+				// worker does not have cluster config. this is only shown in "k0s status -o json".
+				// todo: if it's needed, a worker side config client can be set up and used to load the config
+				ClusterConfig: nil,
+			},
+			CertManager: certManager,
+			Socket:      c.K0sVars.StatusSocketPath,
+		})
+	}
+
 	// extract needed components
 	if err := componentManager.Init(ctx); err != nil {
 		return err

cmd/worker/worker_unix.go

@@ -7,40 +7,15 @@ package worker
 
 import (
 	"context"
-	"os"
 
-	"github.com/k0sproject/k0s/pkg/build"
 	"github.com/k0sproject/k0s/pkg/component/manager"
-	"github.com/k0sproject/k0s/pkg/component/prober"
-	"github.com/k0sproject/k0s/pkg/component/status"
 	"github.com/k0sproject/k0s/pkg/component/worker"
 	"github.com/k0sproject/k0s/pkg/config"
 )
 
 func initLogging(context.Context, string) error { return nil }
 
 func addPlatformSpecificComponents(ctx context.Context, m *manager.Manager, k0sVars *config.CfgVars, controller EmbeddingController, certManager *worker.CertificateManager) {
-	// if running inside a controller, status component is already running
-	if controller == nil {
-		m.Add(ctx, &status.Status{
-			Prober: prober.DefaultProber,
-			StatusInformation: status.K0sStatus{
-				Pid:        os.Getpid(),
-				Role:       "worker",
-				Args:       os.Args,
-				Version:    build.Version,
-				Workloads:  true,
-				SingleNode: false,
-				K0sVars:    k0sVars,
-				// worker does not have cluster config. this is only shown in "k0s status -o json".
-				// todo: if it's needed, a worker side config client can be set up and used to load the config
-				ClusterConfig: nil,
-			},
-			CertManager: certManager,
-			Socket:      k0sVars.StatusSocketPath,
-		})
-	}
-
 	m.Add(ctx, &worker.Autopilot{
 		K0sVars:     k0sVars,
 		CertManager: certManager,

cmd/worker/worker_windows.go

@@ -45,6 +45,6 @@ func initLogging(ctx context.Context, logDir string) error {
 	return nil
 }
 
-func addPlatformSpecificComponents(context.Context, *manager.Manager, *config.CfgVars, EmbeddingController, *worker.CertificateManager) {
+func addPlatformSpecificComponents(ctx context.Context, m *manager.Manager, k0sVars *config.CfgVars, controller EmbeddingController, certManager *worker.CertificateManager) {
 	// no-op
 }

pkg/autopilot/controller/setup.go

@@ -178,9 +178,6 @@ func (sc *setupController) createControlNode(ctx context.Context, cf apcli.Facto
 	return nil
 }
 
-// TODO re-use from somewhere else
-const DefaultK0sStatusSocketPath = "/run/k0s/status.sock"
-
 func getControlNodeAddresses(hostname string) ([]corev1.NodeAddress, error) {
 	addresses := []corev1.NodeAddress{}
 	apiAddress, err := getControllerAPIAddress()
@@ -201,7 +198,7 @@ func getControlNodeAddresses(hostname string) ([]corev1.NodeAddress, error) {
 }
 
 func getControllerAPIAddress() (string, error) {
-	status, err := status.GetStatusInfo(DefaultK0sStatusSocketPath)
+	status, err := status.GetStatusInfo(status.DefaultSocketPath)
 	if err != nil {
 		return "", err
 	}

pkg/autopilot/controller/signal/k0s/init.go

@@ -39,7 +39,7 @@ func RegisterControllers(ctx context.Context, logger *logrus.Entry, mgr crman.Ma
 	logger.Infof("Using effective hostname = '%v'", hostname)
 
 	k0sVersionHandler := func() (string, error) {
-		return getK0sVersion(DefaultK0sStatusSocketPath)
+		return getK0sVersion(status.DefaultSocketPath)
 	}
 
 	if err := registerSignalController(logger, mgr, signalControllerEventFilter(hostname, apsigpred.DefaultErrorHandler(logger, "k0s signal")), delegate, clusterID, k0sVersionHandler); err != nil {

pkg/autopilot/controller/signal/k0s/restart_unix.go

@@ -93,7 +93,7 @@ func (r *restart) Reconcile(ctx context.Context, req cr.Request) (cr.Result, err
 
 	// Get the current version of k0s
 	logger.Info("Determining the current version of k0s")
-	k0sVersion, err := getK0sVersion(DefaultK0sStatusSocketPath)
+	k0sVersion, err := getK0sVersion(status.DefaultSocketPath)
 	if err != nil {
 		logger.Info("Unable to determine current verion of k0s; requeuing")
 		return cr.Result{}, fmt.Errorf("unable to get k0s version: %w", err)
@@ -128,7 +128,7 @@ func (r *restart) Reconcile(ctx context.Context, req cr.Request) (cr.Result, err
 
 	logger.Info("Preparing to restart k0s")
 
-	k0sPid, err := getK0sPid(DefaultK0sStatusSocketPath)
+	k0sPid, err := getK0sPid(status.DefaultSocketPath)
 	if err != nil {
 		logger.Info("Unable to determine current k0s pid; requeuing")
 		return cr.Result{RequeueAfter: restartRequeueDuration}, fmt.Errorf("unable to get k0s pid: %w", err)

pkg/autopilot/controller/signal/k0s/restarted_unix.go

@@ -14,6 +14,7 @@ import (
 	apdel "github.com/k0sproject/k0s/pkg/autopilot/controller/delegate"
 	apsigpred "github.com/k0sproject/k0s/pkg/autopilot/controller/signal/common/predicate"
 	apsigv2 "github.com/k0sproject/k0s/pkg/autopilot/signaling/v2"
+	"github.com/k0sproject/k0s/pkg/component/status"
 
 	"github.com/sirupsen/logrus"
 	cr "sigs.k8s.io/controller-runtime"
@@ -86,7 +87,7 @@ func (r *restarted) Reconcile(ctx context.Context, req cr.Request) (cr.Result, e
 
 	// Get the current version of k0s
 	logger.Info("Determining the current version of k0s")
-	k0sVersion, err := getK0sVersion(DefaultK0sStatusSocketPath)
+	k0sVersion, err := getK0sVersion(status.DefaultSocketPath)
 	if err != nil {
 		logger.Info("Unable to determine current verion of k0s; requeuing")
 		return cr.Result{}, fmt.Errorf("unable to get k0s version: %w", err)

pkg/autopilot/controller/signal/k0s/signal.go

@@ -27,7 +27,6 @@ import (
 
 const (
 	SignalResponseProcessingTimeout = 1 * time.Minute
-	DefaultK0sStatusSocketPath      = "/run/k0s/status.sock"
 )
 
 type k0sVersionHandlerFunc func() (string, error)

pkg/autopilot/controller/updates/updater.go

@@ -20,7 +20,6 @@ import (
 	apv1beta2 "github.com/k0sproject/k0s/pkg/apis/autopilot/v1beta2"
 	apcli "github.com/k0sproject/k0s/pkg/autopilot/client"
 	appc "github.com/k0sproject/k0s/pkg/autopilot/controller/plans/core"
-	"github.com/k0sproject/k0s/pkg/autopilot/controller/signal/k0s"
 	uc "github.com/k0sproject/k0s/pkg/autopilot/updater"
 	"github.com/k0sproject/k0s/pkg/build"
 	"github.com/k0sproject/k0s/pkg/component/status"
@@ -77,7 +76,7 @@ func newCronUpdater(parentCtx context.Context, updateConfig apv1beta2.UpdateConf
 		schedule = defaultCronSchedule
 	}
 
-	status, err := status.GetStatusInfo(k0s.DefaultK0sStatusSocketPath)
+	status, err := status.GetStatusInfo(status.DefaultSocketPath)
 	if err != nil {
 		return nil, err
 	}

pkg/component/status/client.go

@@ -1,5 +1,3 @@
-//go:build unix
-
 // SPDX-FileCopyrightText: 2022 k0s authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -40,7 +38,7 @@ type ProbeStatus struct {
 // GetStatus returns the status of the k0s process using the status socket
 func GetStatusInfo(socketPath string) (*K0sStatus, error) {
 	status := &K0sStatus{}
-	if err := doHTTPRequestViaUnixSocket(socketPath, "status", status); err != nil {
+	if err := doStatusHTTPRequest(socketPath, "status", status); err != nil {
 		return nil, err
 	}
 	return status, nil
@@ -49,20 +47,20 @@ func GetStatusInfo(socketPath string) (*K0sStatus, error) {
 // GetComponentStatus returns the per-component events and health-checks
 func GetComponentStatus(socketPath string, maxCount int) (*prober.State, error) {
 	status := &prober.State{}
-	if err := doHTTPRequestViaUnixSocket(socketPath,
+	if err := doStatusHTTPRequest(socketPath,
 		fmt.Sprintf("components?maxCount=%d", maxCount),
 		status); err != nil {
 		return nil, err
 	}
 	return status, nil
 }
 
-func doHTTPRequestViaUnixSocket(socketPath string, path string, tgt any) error {
-	httpc := http.Client{
+func doStatusHTTPRequest(socketPath string, path string, tgt any) error {
+	httpc := &http.Client{
 		Transport: &http.Transport{
+			DisableKeepAlives: true,
 			DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
-				var d net.Dialer
-				return d.DialContext(ctx, "unix", socketPath)
+				return dialSocket(ctx, socketPath)
 			},
 		},
 	}

pkg/component/status/defaults.go

@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: 2025 k0s authors
+// SPDX-License-Identifier: Apache-2.0
+
+package status
+
+import "github.com/k0sproject/k0s/pkg/constant"
+
+// DefaultSocketPath is the platform-specific default socket path used by k0s
+// when no explicit status socket is provided.
+//
+// Deprecated: This constant is defined to avoid a circular import in autopilot
+// and will be refactored out.
+const DefaultSocketPath = constant.StatusSocketPathDefault

pkg/component/status/status.go

@@ -1,5 +1,3 @@
-//go:build unix
-
 // SPDX-FileCopyrightText: 2021 k0s authors
 // SPDX-License-Identifier: Apache-2.0
 
@@ -9,9 +7,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
-	"net"
 	"net/http"
-	"os"
 	"strconv"
 	"time"
 
@@ -35,7 +31,6 @@ type Status struct {
 	Socket            string
 	L                 *logrus.Entry
 	httpserver        http.Server
-	listener          net.Listener
 	CertManager       certManager
 }
 
@@ -62,34 +57,23 @@ func (s *Status) Init(_ context.Context) error {
 			w.WriteHeader(http.StatusInternalServerError)
 		}
 	})
-	var err error
 	s.httpserver = http.Server{
 		Handler: mux,
 	}
 
-	removeLeftovers(s.Socket)
-	s.listener, err = net.Listen("unix", s.Socket)
-	if err != nil {
-		s.L.Errorf("failed to create listener %s", err)
-		return err
-	}
-	s.L.Infof("Listening address %s", s.Socket)
-
 	return nil
 }
 
-// removeLeftovers tries to remove leftover sockets that nothing is listening on
-func removeLeftovers(socket string) {
-	_, err := net.Dial("unix", socket)
-	if err != nil {
-		_ = os.Remove(socket)
-	}
-}
-
 // Start runs the component
 func (s *Status) Start(_ context.Context) error {
+	listener, err := newStatusListener(s.Socket)
+	if err != nil {
+		s.L.Errorf("failed to create listener %s", err)
+		return err
+	}
+	s.L.Infof("Listening address %s", s.Socket)
 	go func() {
-		if err := s.httpserver.Serve(s.listener); err != nil && !errors.Is(err, http.ErrServerClosed) {
+		if err := s.httpserver.Serve(listener); err != nil && !errors.Is(err, http.ErrServerClosed) {
 			s.L.Errorf("failed to start status server at %s: %s", s.Socket, err)
 		}
 	}()
@@ -103,8 +87,7 @@ func (s *Status) Stop() error {
 	if err := s.httpserver.Shutdown(ctx); err != nil && !errors.Is(err, context.Canceled) {
 		return err
 	}
-	// Unix socket doesn't need to be explicitly removed because it's handled
-	// by httpserver.Shutdown
+	cleanupStatusListener(s.Socket)
 	return nil
 }