updated transmission to version 4

transmission/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:edge
 
 RUN addgroup \
         --gid 10001 \

transmission/Makefile

@@ -1,19 +1,18 @@
-IMG_NAME=transmission
-REGISTRY=registry.monotremata.xyz
-IMG=$(REGISTRY)/$(IMG_NAME)
-PLATFORMS=linux/amd64,linux/arm64
+IMG_NAME  =transmission
+REGISTRY = registry.monotremata.xyz
+IMG = $(REGISTRY)/$(IMG_NAME)
+PLATFORM = linux/amd64,linux/arm64
+JOBS = 1
 
-.PHONY: build push buildx
+.PHONY: push
 
-build: Dockerfile
-	docker build -t $(IMG) .
+out/image-name: Dockerfile
+	mkdir -p $(@D)
+	buildah build \
+		--jobs=$(JOBS) \
+		--platform=$(PLATFORM) \
+		--manifest=$(IMG) .
+	@echo $(IMG) > $(@)
 
-push: build
-	docker image push $(IMG)
-
-buildx: Dockerfile
-	docker buildx build \
-		--platform $(PLATFORMS) \
-		--tag $(IMG) \
-		--push \
-		.
+push: out/image-name
+	podman manifest push --all $(IMG) docker://$(IMG)