frappe insists not to run as root - add a frappe user and group

Makefile

 all:
+	rm /etc/passwd
+	mv -v /data/etc/passwd /etc/passwd
+	rm /etc/group
+	mv -v /data/etc/group /etc/group
+	rm /etc/shadow
+	mv -v /data/etc/shadow /etc/shadow
+	rm /etc/gshadow
+	mv -v /data/etc/gshadow /etc/gshadow
+	groupadd -g 31 frappe
+	useradd -c "Frappe framework" -d /run/frappe -g frappe -s /bin/false -u 32 frappe
+	rm /etc/passwd-
+	rm /etc/group-
+	rm /etc/shadow-
+	rm /etc/gshadow-
+	mv -v /etc/passwd /data/etc/passwd
+	ln -sv /data/etc/passwd /etc/passwd
+	mv -v /etc/group /data/etc/group
+	ln -sv /data/etc/group /etc/group
+	mv -v /etc/shadow /data/etc/shadow
+	ln -sv /data/etc/shadow /etc/shadow
+	mv -v /etc/gshadow /data/etc/gshadow
+	ln -sv /data/etc/gshadow /etc/gshadow
+
 	pip3 install frappe-bench