fix(edge-stack): parse docker compose multi lines json output EE-6317 (#10627)

pkg/libstack/compose/internal/composeplugin/status.go

@@ -1,8 +1,10 @@
 package composeplugin
 
 import (
+	"bytes"
 	"context"
 	"fmt"
+	"io"
 	"time"
 
 	"github.com/portainer/portainer/pkg/libstack"
@@ -107,6 +109,7 @@ func (wrapper *PluginWrapper) WaitForStatus(ctx context.Context, name string, st
 	errorMessageCh := make(chan string)
 
 	go func() {
+	OUTER:
 		for {
 			select {
 			case <-ctx.Done():
@@ -135,13 +138,23 @@ func (wrapper *PluginWrapper) WaitForStatus(ctx context.Context, name string, st
 			}
 
 			var services []service
-			err = json.Unmarshal(output, &services)
-			if err != nil {
-				log.Debug().
-					Str("project_name", name).
-					Err(err).
-					Msg("failed to parse docker compose output")
-				continue
+			dec := json.NewDecoder(bytes.NewReader(output))
+			for {
+				var svc service
+
+				err := dec.Decode(&svc)
+				if err == io.EOF {
+					break
+				}
+				if err != nil {
+					log.Debug().
+						Str("project_name", name).
+						Err(err).
+						Msg("failed to parse docker compose output")
+					continue OUTER
+				}
+
+				services = append(services, svc)
 			}
 
 			if len(services) == 0 && status == libstack.StatusRemoved {