That's all from me. Please join us again tomorrow for live coverage of Apollon Limassol v Aberdeen, with the Dons leading 2-1 in that Europa League qualifying tie.
Celtic manager Brendan Rodgers: "Big performance. To play that way was sensational. It was a great victory for us.
"James Forrest gets his goal from wide but did a great job centrally. It's a huge credit to the players.
"We haven't conceded a goal. I was fairly comfortable with that set-up and how we defended and I was particularly pleased when we got the goal. After that, they never had any chances, Rosenborg.
"When the draw comes, it's going to be one of those anxious moments again over the two legs. Whoever we get, it'll be a tough game."
Rosenborg manager Kare Ingebrigtsen: "I thought we had too much respect for the first 45 minutes. They didn't create that much. We didn't test them at all.
"We came out [in the second half], put some pressure on them. In the best period of our game, they scored a goal.
"Small margins decided this game but we knew that it was going to be close.
"We should've scored a goal in Glasgow, that's where we lost it. We had the bigger chances in Glasgow."
Celtic also beat Astana 3-2 on aggregate in last season's Champions League qualifiers.
Both that tie and the win over Hapoel Beer Sheva were keenly contest with nervy second legs for Brendan Rodgers' side.
Celtic are one of 10 teams in the champions route of the play-off round.
The Scottish champions are seeded and will avoid Olympiakos, FC Copenhagen, Apoel Nicosia and Maribor.
Brendan Rodgers' side could face Astana, Qarabag, Rijeka, Hapoel Beer Sheva or Slavia Prague.
Celtic beat Hapoel 5-4 on aggregate in last season's play-off round.
Joining Celtic in Friday's Champions League play-off round draw are Qarabag, who won last night, and tonight's other winners Apoel Nicosia, Slavia Prague, CSKA Moscow, Istanbul Basaksehir, FC Copenhagen, Steaua Bucharest, Young Boys, Maribor, Hapoel Beer Sheva, Nice, HNK Rijeka, Astana and Olympiakos.
Sevilla, Napoli, Liverpool, Sporting Lisbon and 1899 Hoffenheim also enter at the play-off round stage.
James Forrest's second-half goal takes Celtic through to the Champions League play-off round.
An extremely tight third qualifying round tie was settled by a fine goal by the Scotland winger and Celtic will look forward to Friday's draw.
Norwegian champions Rosenborg drop into the Europa League play-off round draw.
Celtic strong in possession in the closing stages.
Three minutes of stoppage time begin.
Celtic substitute Leigh Griffiths tests Andre Hansen from the right side of the box.
Rosenborg look a beaten side.
Celtic hold on to the ball well, much to the hosts' frustration and even when Rosenborg get it, they are vulnerable to the visitors' counter-attacks.
Just after Tom Rogic cannot take advantage of a superb Leigh Griffiths through ball, James Forrest gets clean through on goal and tries to round Andre Hansen but his eventual effort is blocked by the goalkeeper.
Rosenborg continue to press but they are not finding a way through.
Celtic look comfortable now. Rosenborg have tired. They are seeing enough of the ball but they are hurried and hesitant.
Rosenborg's Pal Andre Helland has come on for Milan Jevtovic and has already been booked for catching Kieran Tierney late.
Rosenborg have a quarter of an hour to get two goals or they are heading into the Europa League play-off round.
That James Forrest goal means there will be no extra-time or penalties this evening in Trondheim.
If it ends a score draw, Celtic go through on the away goals rule.
Almost a second for Celtic as Scott Sinclair pulls back for Leigh Griffiths, whose shot is deflected narrowly wide.
From the corner, Mikael Lustig heads over.
Just after that goal, Celtic made their final change with Tom Rogic replacing Stuart Armstrong.
James Forrest fires a stunning shot in off the underside of the crossbar to give Celtic a precious lead.
The winger received Scott Sinclair's pass on the right of the box and thundered a shot past Andre Hansen.
Vegar Eggen Hedenstad's effort goes straight into the wall and Celtic clear.
Rosenborg get forward again but the ball is soon in Craig Gordon's hands following a poor cross.
Stuart Armstrong barges over Nicklas Bendtner and Rosenborg have a free-kick in a dangerous area.
A tame effort from Yann-Erik de Lanlay drifts wide of the Celtic goal.
Mike Jensen looks menacing as he twists and turns on the edge of the Celtic box and the Rosenborg captain drags a shot just wide.
Leigh Griffiths' first involvement is a dangerous cross in towards Scott Sinclair but Rosenborg scramble clear.
Leigh Griffiths replaces Jonny Hayes for Celtic.
Kieran Tierney cuts inside from the left and curls a right-foot shot wide. Good effort from the Scotland full-back.
Former Celtic goalkeeper on BBC Sportsound
It's very slow in the build-up from Celtic"
Leigh Griffiths is getting ready to come on for Celtic.
BBC Sport Scotland in Trondheim
"Rosenborg have finally decided to come out to play and it's increasingly opening up. Celtic still bossing the possession but just can't find a way through."
Yann-Erik de Lanlay has Rosenborg's best chance so far, running on to Nicklas Bendtner's pass and firing just wide of the Celtic goal.
The match in Trondheim resumes with Rosenborg kicking off.
BBC Sport Scotland in Trondheim
"Celtic pushing and probing in that first half the way they did in Glasgow last week but the home side, once again, seem happy to stay organised and soak up the pressure. Something has to give at some point."
Former Celtic striker on BBC Sportsound
[Celtic have] been very comfortable. Rosenborg have huffed and puffed a little bit. All in all it's still in the balance and it looks like it's going to be a nervy second half for Celtic supporters"
Still no goals between these sides but Celtic have looked the more likely to score so far in Norway.
Erik Sviatchenko had a header cleared off the line and later went off injured and James Forrest tested Rosenborg goalkeeper Andre Hansen.
The hosts have looked dangerous at times themselves but visiting keeper Craig Gordon had a quiet opening 45 minutes.
Scott Brown has a go from outside the box but it's a comfortable catch for Rosenborg stopper Andre Hansen.
The Norwegians go to the other end and Nicklas Bendtner's header is held by Craig Gordon.