Unify versioning for Debian-based images.

container/Dockerfile.haproxy

 ARG go_version=1.21
-ARG debian_tag=bookworm-20240408-slim
+ARG DEBIAN_TAG
 
 # Build k8s-crt-dnldr in the builder stage
 FROM golang:${go_version} as builder
@@ -23,7 +23,7 @@ RUN cd /go && git clone https://github.com/haproxytech/dataplaneapi.git && \
     cd /go/dataplaneapi && git checkout ${dataplane_version} && make build
 
 # Build haproxy
-FROM debian:${debian_tag}
+FROM debian:${DEBIAN_TAG}
 
 ARG haproxy_version=2.6.12-1+deb12u1
 

container/Dockerfile.varnish

-FROM debian:bookworm-20240408-slim
+ARG DEBIAN_TAG
+
+FROM debian:${DEBIAN_TAG}
 ARG VERSION
 ARG DIST
 ARG POOL

container/Makefile

@@ -41,6 +41,8 @@ ifeq ($(MINKUBE),1)
 	eval $(minikube docker-env)
 endif
 
+DEBIAN_TAG=bookworm-20240408-slim
+
 VARNISH_VERSION=20240307
 VARNISH_DIST=bookworm-varnish
 VARNISH_POOL=varnish
@@ -64,6 +66,7 @@ controller: Dockerfile.controller docker-minikube
 
 varnish: Dockerfile.varnish docker-minikube
 	docker build $(DOCKER_BUILD_OPTIONS) \
+	--build-arg DEBIAN_TAG=$(DEBIAN_TAG) \
 	--build-arg VERSION=$(VARNISH_VERSION) \
 	--build-arg DIST=$(VARNISH_DIST) \
 	--build-arg POOL=$(VARNISH_POOL) \
@@ -73,6 +76,7 @@ varnish: Dockerfile.varnish docker-minikube
 
 klarlack: Dockerfile.varnish docker-minikube
 	docker build $(DOCKER_BUILD_OPTIONS) \
+	--build-arg DEBIAN_TAG=$(DEBIAN_TAG) \
 	--build-arg VERSION=$(KLARLACK_VERSION) \
 	--build-arg DIST=$(KLARLACK_DIST) \
 	--build-arg POOL=$(KLARLACK_POOL) \
@@ -88,4 +92,5 @@ ascn: Dockerfile.ascn docker-minikube
 
 haproxy: Dockerfile.haproxy docker-minikube
 	docker build $(DOCKER_BUILD_OPTIONS) -t $(IMAGE_REPO)varnish-ingress/haproxy \
+	--build-arg DEBIAN_TAG=$(DEBIAN_TAG) \
 	-f Dockerfile.haproxy .