Awesome dish for Christmas! Pork baked in the oven!

Pork neck-2 kg.
Cherry tomatoes-250 gr.
Onion-450 gr.
Celery stalks - 2 pcs.
Olives-150 gr.
Canned tomatoes-800 gr.
Chicken broth - 300 ml.
Dry white wine - 150 ml.
Sugar-2 tbsp.
Salt.
Olive oil.
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Olive oil-50 ml.
Herbs (rosemary, thyme, sage, oregano)
Garlic - 4 cloves.
Mustard-2 tbsp.
Salt.
Black pepper.