  The next Galactic core-collapse supernova (CCSN) presents a
once-in-a-lifetime opportunity to make astrophysical measurements using
neutrinos, gravitational waves, and electromagnetic radiation. CCSNe local to
the Milky Way are extremely rare, so it is paramount that detectors are
prepared to observe the signal when it arrives. The IceCube Neutrino
Observatory, a gigaton water Cherenkov detector below the South Pole, is
sensitive to the burst of neutrinos released by a Galactic CCSN at a level
$>$10$\sigma$. This burst of neutrinos precedes optical emission by hours to
days, enabling neutrinos to serve as an early warning for follow-up
observation. IceCube's detection capabilities make it a cornerstone of the
global network of neutrino detectors monitoring for Galactic CCSNe, the
SuperNova Early Warning System (SNEWS 2.0). In this contribution, we describe
IceCube's sensitivity to Galactic CCSNe and strategies for operational
readiness, including "fire drill" data challenges. We also discuss coordination
with SNEWS 2.0.
