Multiarch

Dockerfile

@@ -1,21 +1,20 @@
-#FROM registry.access.redhat.com/ubi8/ubi-minimal
-FROM golang:1.17.8-alpine AS build-env
+FROM --platform=$BUILDPLATFORM golang:1.17.8-alpine AS build-env
+
+ARG TARGETOS
+ARG TARGETARCH
+
+ENV GOOS=${TARGETOS} \
+    GOARCH=${TARGETARCH} \
+    GOARM=${TARGETVARIANT}
+
 RUN mkdir /build
 WORKDIR /build
 COPY *.go .
 COPY go.mod .
 COPY go.sum .
 RUN go mod download
 RUN go mod tidy
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -v -a -installsuffix cgo -o app
-#RUN go build -o /app
-# dev
-#WORKDIR /go/src/github.com/weshayutin/todolist-mariadb-go
-#
-#COPY ./ .
-#
-#RUN chmod -R 777 ./
-#RUN go mod download
+RUN CGO_ENABLED=0 go build -v -a -installsuffix cgo -o app 
 
 FROM scratch
 COPY --from=build-env /build/app /app

Makefile

@@ -0,0 +1,41 @@
+REGISTRY ?= quay.io/mferrato
+REPO ?= todolist-mariadb-go
+IMAGE ?= $(REGISTRY)/$(REPO)
+
+DOCKERFILE ?= Dockerfile
+
+VERSION ?= v1
+
+TAG_LATEST ?= false
+
+ifeq ($(TAG_LATEST), true)
+	IMAGE_TAGS ?= $(IMAGE):$(VERSION) $(IMAGE):latest
+else
+	IMAGE_TAGS ?= $(IMAGE):$(VERSION)
+endif
+
+ifeq ($(shell docker buildx inspect 2>/dev/null | awk '/Status/ { print $$2 }'), running)
+	BUILDX_ENABLED ?= true
+else
+	BUILDX_ENABLED ?= false
+endif
+
+define BUILDX_ERROR
+buildx not enabled, refusing to run this recipe
+endef
+
+PLATFORMS ?= linux-amd64,linux-arm64,linux-ppc64le,linux-s390x
+BUILDX_PLATFORMS := $(shell echo '$(PLATFORMS)' | sed -e "s/-/\//g" )
+BUILDX_OUTPUT_TYPE ?= registry
+
+containers:
+ifneq ($(BUILDX_ENABLED), true)
+	$(error $(BUILDX_ERROR))
+endif
+	@echo "Buildx plaforms: $(BUILDX_PLATFORMS)" 
+	@docker buildx build  \
+	--output=type=$(BUILDX_OUTPUT_TYPE) \
+	--platform $(BUILDX_PLATFORMS) \
+	$(addprefix -t , $(IMAGE_TAGS)) \
+	-f $(DOCKERFILE) .
+	@echo "manifest: $(IMAGE_TAGS)"