Method createProjectFromContainers

pkg/compose/generate.go:68–110

(containers []container.Summary, projectName string)

}

func (s *composeService) createProjectFromContainers(containers []container.Summary, projectName string) (*types.Project, error) {
	project := &types.Project{}
	services := types.Services{}
	networks := types.Networks{}
	volumes := types.Volumes{}
	secrets := types.Secrets{}

	if projectName != "" {
		project.Name = projectName
	}

	for _, c := range containers {
		// if the container is from a previous Compose application, use the existing service name
		serviceLabel, ok := c.Labels[api.ServiceLabel]
		if !ok {
			serviceLabel = getCanonicalContainerName(c)
		}
		service, ok := services[serviceLabel]
		if !ok {
			service = types.ServiceConfig{
				Name:   serviceLabel,
				Image:  c.Image,
				Labels: c.Labels,
			}
		}
		service.Scale = increment(service.Scale)

		inspect, err := s.apiClient().ContainerInspect(context.Background(), c.ID, client.ContainerInspectOptions{})
		if err != nil {
			services[serviceLabel] = service
			continue
		}
		s.extractComposeConfiguration(&service, inspect.Container, volumes, secrets, networks)
		service.Labels = cleanDockerPreviousLabels(service.Labels)
		services[serviceLabel] = service
	}

	project.Services = services
	project.Networks = networks
	project.Volumes = volumes
	project.Secrets = secrets
	return project, nil
}

func (s *composeService) extractComposeConfiguration(service *types.ServiceConfig, inspect container.InspectResponse, volumes types.Volumes, secrets types.Secrets, networks types.Networks) {
	service.Environment = types.NewMappingWithEquals(inspect.Config.Env)