Their second half try came from Simon Zebo after a sustained bout of Munster pressure, Keatley adding the extras.
The final quarter saw the home side mount attack after attack but they were met my fierce Munster resistance whose defence was fiercely committed, a factor of the game that coach Tony McGahan referred to afterwards as being one of the apsects that particularly pleased him.
Munster: J Murphy; D Howlett, D Barnes, L Mafi, S Zebo; I Keatley, P Stringer; W du Preez, D Varley, J Hayes; B Holland, M O'Driscoll; P O'Mahony (capt), N Ronan, J Coughlan. Replacements: D Fogarty, M Horan, S Archer, D Foley, T O'Donnell, D Williams, S Deasy, T Gleeson.
Glasgow Warriors: S Hogg; F Aramburu, R Dewey, T Nathan, C Shaw; D Weir, H Pyrgos; R Grant, P MacArthur, M Cusack, T Ryder, N Campbell, R Hartley (capt) C Fusaro, R Wilson. Replacements: F Gillies, E Kalman, G Reid, J Eddie, R Pitman, C Gregor, S Wight, P Horne.
Referee: D Phillips (IRFU).