Remove sapk/gitea-base and use directly new official alpine multi-arch

Author: sapk

Dockerfile

@@ -1,4 +1,4 @@
-FROM sapk/gitea-base
+FROM alpine:3.6
 LABEL maintainer="The Gitea Authors"
 
 EXPOSE 22 3000

docker/Makefile

@@ -9,13 +9,3 @@ DOCKER_REF := $(DOCKER_IMAGE):$(DOCKER_TAG)
 docker:
 	docker run -ti --rm -v $(CURDIR):/srv/app/src/code.gitea.io/gitea -w /srv/app/src/code.gitea.io/gitea -e TAGS="bindata $(TAGS)" webhippie/golang:edge make clean generate build
 	docker build -t $(DOCKER_REF) .
-
-.PHONY: docker-multi-arch-push-manifest
-docker-multi-arch-push-manifest: DOCKER_MANIFEST ?= docker/manifest/base.yml
-docker-multi-arch-push-manifest:
-	@hash manifest-tool > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
-		go get -u github.com/estesp/manifest-tool; \
-	fi
-	$(SED_INPLACE) "s;gitea/gitea;$(DOCKER_IMAGE);g" $(DOCKER_MANIFEST)
-	@manifest-tool push from-spec $(DOCKER_MANIFEST)
-	$(SED_INPLACE) "s;$(DOCKER_IMAGE);gitea/gitea;g" $(DOCKER_MANIFEST)