Inside directory with APKBUILD file use to run abuild -r previously use apk update to fetch fresh packages

You could use following Makefile to inside directory with aports https://github.com/alpinelinux/aports

.PHONY: run

all: run

IMAGE := skilldlabs/aports-build:edge

run:
    docker run --rm -it -v $(shell pwd):/mnt --network host $(IMAGE) ash