Scrub the potatoes, chop into chunks and rinse. Boil the potatoes in salted water until cooked. Strain them and put in a large bowl and allow to cool.
Add the vinegar and parsley and toss with the potatoes.
Add the chopped onion, celery, pickle and toss with the potatoes
In a small bowl combine the mayonnaise, dijon mustard, sriracha, salt and pepper. Add this mixture to the potatoes and stir.Finish by tossing in the bacon.