BEDTIME FOR BABY

My little one is about two months old. For the first two months hes slept on his dockatot or in his swing when he got fussy and now me and husband want him to start sleeping in his crib. Hes a great sleeper he will sleep anywhere from four to six hours at night. The problem is he wont sleep in his crib. He falls asleep in his swing and his rocker hes out like a light and sleeps for hours. Lately ive been rocking him to sleep in my arms are he feeds and within minutes hes out but the second his head hits the crib hes up eyes wide open. He dosent do this from my arms to rocker or the swing and its not the motion ill put him in there no motion or anything how to do i get him to sleep in the crib please any ideas i will take then all.