config fix, WIP: better config auto-reload

cmd/root.go

@@ -5,7 +5,6 @@ import (
 	"os"
 	"os/signal"
 	"syscall"
-	"time"
 
 	"github.com/Neur0toxine/sshpoke/internal/api/plugin"
 	"github.com/Neur0toxine/sshpoke/internal/api/rest"
@@ -46,12 +45,8 @@ var rootCmd = &cobra.Command{
 			config.Rehash()
 			logger.Default.Info("configuration has been updated, restarting the app...")
 			cancel()
-			go server.DefaultManager.WaitForShutdown()
-			ctx, innerCancel := context.WithTimeout(context.Background(), 2*time.Second)
-			defer innerCancel()
-			select {
-			case <-ctx.Done():
-			}
+			server.DefaultManager.Wait()
+			docker.Default.Wait()
 			initApp()
 		})
 
@@ -179,7 +174,8 @@ func runDockerEventListener(ctx context.Context) {
 func makeShutdownFunc(cancel func()) func(os.Signal) {
 	return func(sig os.Signal) {
 		cancel()
-		server.DefaultManager.WaitForShutdown()
+		server.DefaultManager.Wait()
+		docker.Default.Wait()
 		logger.Sugar.Infof("received %s, exiting...", sig)
 		os.Exit(0)
 	}

internal/docker/api.go

@@ -19,6 +19,7 @@ var Default *Docker
 type Docker struct {
 	cli           *client.Client
 	ctx           context.Context
+	wait          chan struct{}
 	services      map[smarttypes.MatchableString]config.ServiceLabels
 	defaultServer string
 }
@@ -35,6 +36,7 @@ func New(ctx context.Context, services []config.Service, defaultServer string) (
 	return &Docker{
 		cli:           cli,
 		ctx:           ctx,
+		wait:          make(chan struct{}),
 		services:      servicesMap,
 		defaultServer: defaultServer,
 	}, nil
@@ -104,7 +106,7 @@ func (d *Docker) Listen() (chan dto.Event, error) {
 			select {
 			case event := <-eventSource:
 				eventType := dto.TypeFromAction(event.Action)
-				if (eventType != dto.EventStart && eventType != dto.EventStop) || !actorEnabled(event.Actor) {
+				if (eventType != dto.EventStart && eventType != dto.EventStop) || !actorEnabled(event.Actor).Bool() {
 					continue
 				}
 				container, err := d.cli.ContainerList(d.ctx, types.ContainerListOptions{
@@ -139,6 +141,7 @@ func (d *Docker) Listen() (chan dto.Event, error) {
 				output <- newEvent
 			case err := <-errSource:
 				if errors.Is(err, context.Canceled) {
+					d.wait <- struct{}{}
 					logger.Sugar.Debug("stopping docker event listener...")
 					return
 				}
@@ -151,3 +154,7 @@ func (d *Docker) Listen() (chan dto.Event, error) {
 
 	return output, nil
 }
+
+func (d *Docker) Wait() {
+	<-d.wait
+}

internal/docker/convert.go

@@ -26,14 +26,14 @@ type labelsConfig struct {
 func actorEnabled(actor events.Actor) smarttypes.BoolStr {
 	label, ok := actor.Attributes["sshpoke.enable"]
 	if !ok {
-		return false
+		return smarttypes.AsBoolStr(false)
 	}
-	return smarttypes.BoolFromStr(label)
+	return smarttypes.BoolStr(label)
 }
 
 func populateLabelsFromConfig(labels *labelsConfig, config *config.ServiceLabels) {
-	if labels.Enable != config.Enable {
-		labels.Enable = config.Enable
+	if labels.Enable.Bool() != config.Enable.Bool() {
+		labels.Enable = smarttypes.AsBoolStr(config.Enable.Bool())
 	}
 	if labels.Server != config.Server {
 		labels.Server = config.Server
@@ -59,7 +59,7 @@ func dockerContainerToInternal(
 	if configLabels != nil {
 		populateLabelsFromConfig(&labels, configLabels)
 	}
-	if !labels.Enable {
+	if !labels.Enable.Bool() {
 		logger.Sugar.Debugf("skipping container %s because sshpoke is not enabled for it", container.ID)
 		return result, false
 	}

internal/server/manager.go

@@ -203,7 +203,7 @@ func (m *Manager) PluginByToken(token string) plugin.Plugin {
 	return server
 }
 
-func (m *Manager) WaitForShutdown() {
+func (m *Manager) Wait() {
 	defer m.rw.RUnlock()
 	m.rw.RLock()
 	for _, srv := range m.servers {

pkg/smarttypes/bool_str.go

@@ -1,19 +1,16 @@
 package smarttypes
 
-type BoolStr bool
+import (
+	"strconv"
+)
 
-func BoolFromStr(str string) BoolStr {
-	return str == "true" || str == "1"
+type BoolStr string
+
+func AsBoolStr(val bool) BoolStr {
+	return BoolStr(strconv.FormatBool(val))
 }
 
-func (b BoolStr) MarshalText() ([]byte, error) {
-	if b {
-		return []byte("true"), nil
-	}
-	return []byte("false"), nil
-}
-
-func (b *BoolStr) UnmarshalText(src []byte) error {
-	*b = BoolFromStr(string(src))
-	return nil
+func (b BoolStr) Bool() bool {
+	val, _ := strconv.ParseBool(string(b))
+	return val
 }