use CustomLabels for composeV2 metadata and not impact service hash

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>

cmd/compose/compose.go

@@ -120,24 +120,6 @@ func (o *projectOptions) WithServices(fn ProjectServicesFunc) func(cmd *cobra.Co
 			return err
 		}
 
-		if o.EnvFile != "" {
-			var services types.Services
-			for _, s := range project.Services {
-				ef := o.EnvFile
-				if ef != "" {
-					if !filepath.IsAbs(ef) {
-						ef = filepath.Join(project.WorkingDir, o.EnvFile)
-					}
-					if s.Labels == nil {
-						s.Labels = make(map[string]string)
-					}
-					s.Labels[api.EnvironmentFileLabel] = ef
-					services = append(services, s)
-				}
-			}
-			project.Services = services
-		}
-
 		return fn(ctx, project, args)
 	})
 }
@@ -180,6 +162,25 @@ func (o *projectOptions) toProject(services []string, po ...cli.ProjectOptionsFn
 		compose.Separator = "_"
 	}
 
+	ef := o.EnvFile
+	if ef != "" && !filepath.IsAbs(ef) {
+		ef = filepath.Join(project.WorkingDir, o.EnvFile)
+	}
+	for i, s := range project.Services {
+		s.CustomLabels = map[string]string{
+			api.ProjectLabel:     project.Name,
+			api.ServiceLabel:     s.Name,
+			api.VersionLabel:     api.ComposeVersion,
+			api.WorkingDirLabel:  project.WorkingDir,
+			api.ConfigFilesLabel: strings.Join(project.ComposeFiles, ","),
+			api.OneoffLabel:      "False", // default, will be overridden by `run` command
+		}
+		if ef != "" {
+			s.CustomLabels[api.EnvironmentFileLabel] = ef
+		}
+		project.Services[i] = s
+	}
+
 	if len(services) > 0 {
 		s, err := project.GetServices(services...)
 		if err != nil {

pkg/compose/create.go

@@ -229,7 +229,7 @@ func getImageName(service types.ServiceConfig, projectName string) string {
 func (s *composeService) getCreateOptions(ctx context.Context, p *types.Project, service types.ServiceConfig,
 	number int, inherit *moby.Container, autoRemove bool, attachStdin bool) (*container.Config, *container.HostConfig, *network.NetworkingConfig, error) {
 
-	labels, err := s.prepareLabels(p, service, number)
+	labels, err := s.prepareLabels(service, number)
 	if err != nil {
 		return nil, nil, nil, err
 	}
@@ -414,28 +414,23 @@ func parseSecurityOpts(p *types.Project, securityOpts []string) ([]string, error
 	return securityOpts, nil
 }
 
-func (s *composeService) prepareLabels(p *types.Project, service types.ServiceConfig, number int) (map[string]string, error) {
+func (s *composeService) prepareLabels(service types.ServiceConfig, number int) (map[string]string, error) {
 	labels := map[string]string{}
 	for k, v := range service.Labels {
 		labels[k] = v
 	}
-
-	labels[api.ProjectLabel] = p.Name
-	labels[api.ServiceLabel] = service.Name
-	labels[api.VersionLabel] = api.ComposeVersion
-	if _, ok := service.Labels[api.OneoffLabel]; !ok {
-		labels[api.OneoffLabel] = "False"
+	for k, v := range service.CustomLabels {
+		labels[k] = v
 	}
 
 	hash, err := ServiceHash(service)
 	if err != nil {
 		return nil, err
 	}
-
 	labels[api.ConfigHashLabel] = hash
-	labels[api.WorkingDirLabel] = p.WorkingDir
-	labels[api.ConfigFilesLabel] = strings.Join(p.ComposeFiles, ",")
+
 	labels[api.ContainerNumberLabel] = strconv.Itoa(number)
+
 	var dependencies []string
 	for s := range service.DependsOn {
 		dependencies = append(dependencies, s)

pkg/compose/hash.go

@@ -24,7 +24,6 @@ import (
 )
 
 // ServiceHash compute configuration has for a service
-// TODO move this to compose-go
 func ServiceHash(o types.ServiceConfig) (string, error) {
 	// remove the Build config when generating the service hash
 	o.Build = nil

pkg/compose/run.go

@@ -153,8 +153,9 @@ func (s *composeService) prepareRun(ctx context.Context, project *types.Project,
 	if service.Deploy != nil {
 		service.Deploy.RestartPolicy = nil
 	}
-	service.Labels = service.Labels.Add(api.SlugLabel, slug)
-	service.Labels = service.Labels.Add(api.OneoffLabel, "True")
+	service.CustomLabels = service.CustomLabels.
+		Add(api.SlugLabel, slug).
+		Add(api.OneoffLabel, "True")
 
 	if err := s.ensureImagesExists(ctx, project, opts.QuietPull); err != nil { // all dependencies already checked, but might miss service img
 		return "", err