Method projectFromName

pkg/compose/compose.go:359–425

projectFromName builds a types.Project based on actual resources with compose labels set

(containers Containers, projectName string, services ...string)

// projectFromName builds a types.Project based on actual resources with compose labels set
func (s *composeService) projectFromName(containers Containers, projectName string, services ...string) (*types.Project, error) {
	project := &types.Project{
		Name:     projectName,
		Services: types.Services{},
	}
	if len(containers) == 0 {
		return project, fmt.Errorf("no container found for project %q: %w", projectName, api.ErrNotFound)
	}
	set := types.Services{}
	for _, c := range containers {
		serviceLabel, ok := c.Labels[api.ServiceLabel]
		if !ok {
			serviceLabel = getCanonicalContainerName(c)
		}
		service, ok := set[serviceLabel]
		if !ok {
			service = types.ServiceConfig{
				Name:   serviceLabel,
				Image:  c.Image,
				Labels: c.Labels,
			}
		}
		service.Scale = increment(service.Scale)
		set[serviceLabel] = service
	}
	for name, service := range set {
		dependencies := service.Labels[api.DependenciesLabel]
		if dependencies != "" {
			service.DependsOn = types.DependsOnConfig{}
			for dc := range strings.SplitSeq(dependencies, ",") {
				dcArr := strings.Split(dc, ":")
				condition := ServiceConditionRunningOrHealthy
				// Let's restart the dependency by default if we don't have the info stored in the label
				restart := true
				required := true
				dependency := dcArr[0]

				// backward compatibility
				if len(dcArr) > 1 {
					condition = dcArr[1]
					if len(dcArr) > 2 {
						restart, _ = strconv.ParseBool(dcArr[2])
					}
				}
				service.DependsOn[dependency] = types.ServiceDependency{Condition: condition, Restart: restart, Required: required}
			}
			set[name] = service
		}
	}
	project.Services = set

SERVICES:
	for _, qs := range services {
		for _, es := range project.Services {
			if es.Name == qs {
				continue SERVICES
			}
		}