Build image in multiple flavors

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.gitignore

@@ -0,0 +1,2 @@
+Dockerfile.build
+korvike

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:stretch
+FROM node:{{ .ver }}
 
 LABEL maintainer Knut Ahlers <knut@ahlers.me>
 

Makefile

@@ -0,0 +1,21 @@
+KORVIKE_VERSION:=v0.7.1
+
+jenkins: build_latest
+jenkins: build_14
+jenkins: build_12
+jenkins: build_10
+
+build_%: korvike
+	./korvike \
+		-i Dockerfile \
+		-o Dockerfile.build \
+		-v ver=$*
+	docker build \
+		-t reporunner/debian-node:$* \
+		-f Dockerfile.build .
+	docker push \
+		reporunner/debian-node:$*
+
+korvike:
+	curl -sSfL "https://github.com/Luzifer/korvike/releases/download/$(KORVIKE_VERSION)/korvike_linux_amd64.tar.gz" | tar -xz
+	mv korvike_linux_amd64 korvike