Micing upright pianos is hard because of the limited space available. The usual way is to take the panels off and use a stereo micing technique with some distance. But that won't work on a live stage, especially with drums, electric guitar, and electric bass, because of the ambient noise levels.
The two main problems with sticking stereo microphones into the piano are that if the mics are too far apart, you get a nice stereo image, but a "hole" in the middle, whereas if they are closer together, you are losing the higher and lower registers.
If you try to compensate this by sticking even more mics into the piano, you invariably get problems with phasing.
However, if you know what registers you are going to play in and what kind of sound you want to achieve, you can use this to your advantage.
For example, in your case, you mention having a bass player. That means you are probably not going to use the bass register much, and even if you do, having it not being picked up by the mics as much might actually be an advantage, since it "cleans up" the low end of the mix by not interfering with the bass and the kick drum. (There's nothing worse than a keyboard player with an overenthusiastic left hand in a band that also includes bass!)
In your case, I believe that a pair of small-diaphragm omnidirectional condenser mics about 50 cm apart, about 10cm inside the lid, slightly right of center might be a good compromise. It will give you a quieter bass sound but still pick up the middle and high registers for harmonies and solos.
I only ever had to mic an upright once, for a live performance of a big band during an electroswing party. In that case, I did pretty much what I described above, except I didn't have omnidirectional mics at hand.
I used a pair of cheap Chinese clones of the dpa 4099 supercardioid small-diaphragm condenser without any of the clips. I simply taped the goosenecks to the inside of the front panel.
An alternative might be to tape two pressure zone mics such as my favorite Shure Beta 91A to the inside of the front panel or to the underside of the lid.
Micing the soundboard from the back is also very nice (a pair of the classic Shure SM57 would work very well here, as would any of the ones you would normally use as an alternative, e.g. Shure SM58, Sennheiser MD421, …), but obviously requires access to the back of the piano (and not just access but enough room to not catch any unwanted reflections from the wall).