fix bad container detection

docker/helper/helper.go

@@ -2,11 +2,9 @@ package helper
 
 import (
 	"context"
-	"crypto"
 	"docker-updater/config"
 	"docker-updater/constant"
 	"docker-updater/contextutil"
-	"encoding/hex"
 	"fmt"
 	"io"
 	"log/slog"
@@ -55,15 +53,9 @@ type (
 		name                 string
 		image                Image
 		status               container.ContainerState
-		labels               Labels
 		appliedConfiguration config.ContainerConfiguration
 	}
 
-	Labels struct {
-		labels map[string]string
-		hash   string
-	}
-
 	Image struct {
 		id   string
 		name string
@@ -169,9 +161,10 @@ func (w *watcher) Watch(ctx context.Context, dh *DockerHelper) {
 
 	for _, runningContainer := range runningContainers {
 		if foundContainer, ok := dh.w.cache.containers[runningContainer.name]; ok {
-			if runningContainer.labels.hash != foundContainer.c.labels.hash {
-				foundContainer.c = runningContainer
-				dh.w.cache.containers[runningContainer.name] = foundContainer
+			if runningContainer.id != foundContainer.c.id {
+				dh.w.cache.containers[runningContainer.name] = cacheEntry{
+					c: runningContainer,
+				}
 
 				dh.w.containersEventCallback(ContainerEvent{
 					ctx:       ctx,
@@ -437,7 +430,6 @@ func (dh *DockerHelper) parseContainer(ctx context.Context, container container.
 		id:                   container.ID,
 		name:                 name,
 		status:               container.State,
-		labels:               convertLabels(container.Labels),
 		appliedConfiguration: config,
 		image: Image{
 			id:   container.ImageID,
@@ -459,22 +451,6 @@ func formatName(names []string) string {
 	return name
 }
 
-func convertLabels(labels map[string]string) Labels {
-	var p string
-
-	for key, value := range labels {
-		p += key + ":" + value
-	}
-
-	md5 := crypto.MD5.New()
-	hash := md5.Sum([]byte(p))
-
-	return Labels{
-		labels: labels,
-		hash:   hex.EncodeToString(hash),
-	}
-}
-
 func (dh *DockerHelper) parseLocalConfiguration(labels map[string]string) (config.ContainerConfiguration, error) {
 	c := dh.config.GlobalContainerConfiguration
 

runtime/runtime.go

@@ -218,6 +218,11 @@ func (el *EventLoop) process(ev helper.ContainerEvent) {
 	case helper.DeletedContainer:
 		{
 			el.unregister(container)
+			slog.Info("a container was unregistered",
+				"thread", "event_loop",
+				"container_name", container.Name(),
+				"container_id", container.ID(),
+			)
 		}
 	case helper.UpdatedContainer:
 		{