update alpine base image

dockerbuild/Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM alpine:3.11.3
+FROM alpine:3.12.0
 
 ARG go_pkg_url
 

dockerbuild/Makefile

@@ -52,13 +52,13 @@ debian-stretch:
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-386.tar.gz" --platform linux/386 -f Dockerfile.debian-stretch . -t ztbuild/debian-stretch-i386 --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-ppc64le.tar.gz" --platform linux/ppc64le -f Dockerfile.debian-stretch . -t ztbuild/debian-stretch-ppc64le --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-s390x.tar.gz" --platform linux/s390x -f Dockerfile.debian-stretch . -t ztbuild/debian-stretch-s390x --load
-	docker buildx build --platform linux/mips64le -f Dockerfile.debian-sid . -t ztbuild/debian-sid-mips64le --load
+	docker buildx build --platform linux/mips64le -f Dockerfile.debian-stretch . -t ztbuild/debian-stretch-mips64le --load
 
 debian-bullseye:
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz" --platform linux/amd64 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-amd64 --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-arm64.tar.gz" --platform linux/arm64 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-arm64 --load
-	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-armv6l.tar.gz" --platform linux/arm/v6 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-armel --load
-	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-armv6l.tar.gz" --platform linux/arm/v7 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-armhf --load
+	# docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-armv6l.tar.gz" --platform linux/arm/v6 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-armel --load
+	# docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-armv6l.tar.gz" --platform linux/arm/v7 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-armhf --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-386.tar.gz" --platform linux/386 -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-i386 --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-ppc64le.tar.gz" --platform linux/ppc64le -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-ppc64le --load
 	docker buildx build --build-arg go_pkg_url="https://dl.google.com/go/go${GO_VERSION}.linux-s390x.tar.gz" --platform linux/s390x -f Dockerfile.debian-bullseye . -t ztbuild/debian-bullseye-s390x --load