@@ -59,6 +59,7 @@ DOCKER_DOCS_IMAGE := docker-docs$(if $(GIT_BRANCH_CLEAN),:$(GIT_BRANCH_CLEAN))

 DOCKER_PORT_FORWARD := $(if $(DOCKER_PORT),-p "$(DOCKER_PORT)",)

 DOCKER_FLAGS := docker run --rm -i --privileged $(DOCKER_ENVS) $(DOCKER_MOUNT) $(DOCKER_PORT_FORWARD)

+BUILD_APT_MIRROR := $(if $(DOCKER_BUILD_APT_MIRROR),--build-arg APT_MIRROR=$(DOCKER_BUILD_APT_MIRROR))

 # if this session isn't interactive, then we don't want to allocate a

 # TTY, which would fail, but if it is interactive, we do want to attach

@@ -79,7 +80,7 @@ binary: build ## build the linux binaries

 	$(DOCKER_RUN_DOCKER) hack/make.sh binary

 build: bundles init-go-pkg-cache

-	docker build ${DOCKER_BUILD_ARGS} -t "$(DOCKER_IMAGE)" -f "$(DOCKERFILE)" .

+	docker build ${BUILD_APT_MIRROR} ${DOCKER_BUILD_ARGS} -t "$(DOCKER_IMAGE)" -f "$(DOCKERFILE)" .

 bundles:

 	mkdir bundles