diff --git a/docker/Makefile b/docker/Makefile
index beb5e814f97..71096902c31 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -3,9 +3,10 @@ ROOT_IMAGE ?= alpine:3.14
 CERT_IMAGE := $(ROOT_IMAGE)
 GOLANG_IMAGE := golang:1.17-alpine
 
-BASE_IMAGE := localhost:5000/baseimg_alpine:latest
-DEBUG_IMAGE := localhost:5000/debugimg_alpine:latest
-PLATFORMS := linux/amd64,linux/s390x,linux/ppc64le,linux/arm64
+DOCKER_REGISTRY ?= localhost:5000
+BASE_IMAGE ?= $(DOCKER_REGISTRY)/baseimg_alpine:latest
+DEBUG_IMAGE ?= $(DOCKER_REGISTRY)/debugimg_alpine:latest
+PLATFORMS ?= linux/amd64,linux/s390x,linux/ppc64le,linux/arm64
 
 create-baseimg-debugimg: create-baseimg create-debugimg