Israel’s Bryan Meadan produces gluten-free beer made from chickpeas and buckwheat all year round. But for the Jewish festival of Passover he brings out a date ale which is certified Kosher for Passover by Badatz Beit Yosef. (3rd link is to a USA site that brews KfP honey beer.)
http://www.timesofisrael.com/this-passover-wash-down-matzah-with-gluten-free-beer/