@amurray88 Virtuosa has a British Pub 'Masters of the Seas' with an extensive beer menu, over three dozen bottled beers, two dozen draughts, and beer cocktails, other bars have a dozen beers.
At embarkation they are proactive in scanning luggage for contraband, it's really not neccessary to attempt to bring onboard banned items.
At visiting cruise ports, they may or may not confisicate purchased items until disembarkation.