Roloson replaces Pete Peeters, who announced his retirement last week.
"We are happy to have Dwayne in the organization and look forward to him joining the NHL club this season," Ducks general manager Bob Murray said. "He's a knowledgeable, hard-working coach, just as he was as a player for 14 years."
The 43-year-old Roloson played in the League through the 2011-12 season, finishing his career with the Tampa Bay Lightning. He also was a member of the Calgary Flames, Buffalo Sabres, Minnesota Wild, St. Louis Blues, Edmonton Oilers and New York Islanders.
Roloson won 227 games while posting a career 2.72 goals-against average and .908 save percentage, along with 29 shutouts, in 606 games.
He shared goaltending duties for the Wild with Manny Fernandez when they went to the 2003 Western Conference Final. Three years later, Roloson led the eighth-seeded Oilers to the Stanley Cup Final, but was injured in Game 1 and didn't play again in what became a seven-game loss to the Carolina Hurricanes.
In 2011, Roloson helped the Lightning to Game 7 of the Eastern Conference Final, where they lost to the eventual Cup champion Boston Bruins.
Roloson posted a 28-18 record in 50 Stanley Cup Playoff games, with a 2.54 GAA, .918 save percentage and two shutouts.