Build an arm64 container image

Author: silverlyra

Dockerfile

@@ -1,11 +1,13 @@
-FROM golang:1.18.3 as builder
+FROM --platform=${BUILDPLATFORM} golang:1.18.3 as builder
+ARG TARGETARCH
+ARG TARGETOS
 WORKDIR /go/src/github.com/max-rocket-internet/k8s-event-logger
 COPY . .
 RUN go get
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-event-logger
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -o k8s-event-logger
 RUN adduser --disabled-login --no-create-home --disabled-password --system --uid 101 non-root
 
-FROM alpine:3.15.4
+FROM --platform=${TARGETPLATFORM} alpine:3.15.4
 RUN addgroup -S non-root && adduser -S -G non-root non-root
 USER 101
 ENV USER non-root

Makefile

@@ -0,0 +1,7 @@
+VERSION ?= 1.6.1
+IMG ?= maxrocketinternet/k8s-event-logger:$(VERSION)
+
+.PHONY: image
+
+image:
+	docker buildx build --platform linux/amd64,linux/arm64 --push -t $(IMG) .