custom factory

client_factory.go

package somepackage

import (
	"github.com/docker/docker/client"
	libcomposeclient "github.com/docker/libcompose/docker/client"
	"github.com/docker/libcompose/project"
)

type clientFactory struct {
	client *client.Client
}

func newClientFactory() (*clientFactory, error) {
	apiClient, err := libcomposeclient.Create(libcomposeclient.Options{})
	if err != nil {
		return nil, err
	}

	return &clientFactory{
		client: apiClient.(*client.Client), // to get Close() accessible
	}, nil
}

func (s *clientFactory) Create(service project.Service) client.APIClient {
	return s.client
}

func (s *clientFactory) Close() {
	s.client.Close()
}