From c01bf6a5d4ac1640dbe3546cb77c2f3d61b56b74 Mon Sep 17 00:00:00 2001
From: Richard Mortier <mort@cantab.net>
Date: Fri, 22 Mar 2019 18:01:14 +0000
Subject: make: template `Dockerfile` to support different Alpine versions

Signed-off-by: Richard Mortier <mort@cantab.net>
---
 Makefile | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index b69fb42..a6f00a0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,21 @@
+TAGS := $(shell \
+	curl -s https://registry.hub.docker.com/v1/repositories/alpine/tags \
+	| jq -r '.[].name' \
+)
+
 .PHONY: build
-build:
-	DOCKER_BUILDKIT=1 docker build $(DOCKER_FLAGS) -t mor1/abuild .
+build: $(patsubst %, build-%, $(TAGS))
+
+.PHONY: build-%
+build-%:
+	sed 's/%%ALPINE_TAG%%/$*/' Dockerfile.in >| Dockerfile
+	DOCKER_BUILDKIT=1 docker build $$DOCKER_FLAGS -t mor1/abuild:$* .
+	$(RM) Dockerfile
 
 .PHONY: push
 push: build
 	docker push $(DOCKER_FLAGS) mor1/abuild
+
+.PHONY: clean
+clean:
+	$(RM) Dockerfile
-- 
cgit v1.3