add build steps

internal/builder.go

@@ -2,13 +2,26 @@ package internal
 
 import (
 	"context"
+	"os"
 
 	"dagger.io/dagger"
 )
 
-func CreateBuilder(ctx context.Context) error {
+type Builder struct {
+	Dagger *dagger.Client
+}
+
+func New(ctx context.Context) (*Builder, error) {
 	client, err := dagger.Connect(ctx, dagger.WithLogOutput(os.Stdout))
 	if err != nil {
-		return err
+		return nil, err
 	}
+
+	return &Builder{
+		Dagger: client,
+	}, nil
+}
+
+func (b *Builder) CleanUp() error {
+	return b.Dagger.Close()
 }