code: func (p *Project) Run(ctx context.Context, serviceName string, commandParts []string, opts options.Run) (int, error) {
  	if !p.ServiceConfigs.Has(serviceName) {
  		return 1, fmt.Errorf("%s is not defined in the template", serviceName)
  	}
  
  	if err := p.initialize(ctx); err != nil {
  		return 1, err
  	}
  	var exitCode int
  	err := p.forEach([]string{}, wrapperAction(func(wrapper *serviceWrapper, wrappers map[string]*serviceWrapper) {
  		wrapper.Do(wrappers, events.ServiceRunStart, events.ServiceRun, func(service Service) error {
  			if service.Name() == serviceName {
  				code, err := service.Run(ctx, commandParts, opts)
  				exitCode = code
  				return err
  			}
  			return nil
  		})
  	}), func(service Service) error {
  		return service.Create(ctx, options.Create{})
  	})
  	return exitCode, err
  }
docs: // Run executes a one off command (like `docker run image command`).