driver: docker driver base

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

driver/docker/driver.go

@@ -0,0 +1,35 @@
+package docker
+
+import (
+	"context"
+
+	dockertypes "github.com/docker/docker/api/types"
+	"github.com/moby/buildkit/client"
+	"github.com/pkg/errors"
+	"github.com/tonistiigi/buildx/driver"
+)
+
+type Driver struct {
+	config  driver.InitConfig
+	version dockertypes.Version
+}
+
+func (d *Driver) Bootstrap(context.Context, driver.Logger) error {
+	return errors.Errorf("bootstrap not implemented for %T", d)
+}
+
+func (d *Driver) Info(context.Context) (driver.Info, error) {
+	return driver.Info{}, errors.Errorf("info not implemented for %T", d)
+}
+
+func (d *Driver) Stop(ctx context.Context, force bool) error {
+	return errors.Errorf("stop not implemented for %T", d)
+}
+
+func (d *Driver) Rm(ctx context.Context, force bool) error {
+	return errors.Errorf("rm not implemented for %T", d)
+}
+
+func (d *Driver) Client() (*client.Client, error) {
+	return nil, errors.Errorf("client not implemented for %T", d)
+}