Reference markdownlint docker image in dependencies.Dockerfile (#6582)

fix #6530

Co-authored-by: Damien Mathieu <[email protected]>

Author: tongoss

Makefile

@@ -319,9 +319,10 @@ add-tags: verify-mods
 	@[ "${MODSET}" ] || ( echo ">> env var MODSET is not set"; exit 1 )
 	$(MULTIMOD) tag -m ${MODSET} -c ${COMMIT}
 
+MARKDOWNIMAGE := $(shell awk '$$4=="markdown" {print $$2}' $(DEPENDENCIES_DOCKERFILE))
 .PHONY: lint-markdown
 lint-markdown:
-	docker run --rm -u $(DOCKER_USER) -v "$(CURDIR):$(WORKDIR)" avtodev/markdown-lint:v1 -c $(WORKDIR)/.markdownlint.yaml $(WORKDIR)/**/*.md
+	docker run --rm -u $(DOCKER_USER) -v "$(CURDIR):$(WORKDIR)" $(MARKDOWNIMAGE) -c $(WORKDIR)/.markdownlint.yaml $(WORKDIR)/**/*.md
 
 .PHONY: verify-readmes
 verify-readmes:

dependencies.Dockerfile

@@ -1,3 +1,4 @@
 # This is a renovate-friendly source of Docker images.
 FROM python:3.13.2-slim-bullseye@sha256:c527a33e5265d0f830994d1b3237d38840a7b7986a8b9374a4b941ac34048190 AS python
 FROM otel/weaver:v0.13.2@sha256:ae7346b992e477f629ea327e0979e8a416a97f7956ab1f7e95ac1f44edf1a893 AS weaver
+FROM avtodev/markdown-lint:v1@sha256:6aeedc2f49138ce7a1cd0adffc1b1c0321b841dc2102408967d9301c031949ee AS markdown