Roasted Salmon Tacos

Name: Roasted Salmon Tacos
Ingredients: 3/4 pound green cabbage, cored and finely shredded; 1/2 seedless cucumber, unpeeled, halved lengthwise, seeds removed and very thinly sliced; 1/4 cup good white wine vinegar; 3 tablespoons minced fresh dill; Kosher salt and freshly ground black pepper; Olive oil, for greasing the pan; 1 3/4 pounds center-cut fresh salmon fillet, skin removed; 2 teaspoons chipotle chile powder; 1 teaspoon grated lime zest; 3 tablespoons freshly squeezed lime juice, divided; 12 (6-inch) corn tortillas; 4 ripe Hass avocados, seeded and peeled; 3/4 teaspoon Sriracha