ARG ARCH # STEP 1 build executable binary FROM amd64/golang:1.16.3-alpine3.13@sha256:734250bcdf5b6578e9596bf1e52824306469c7f55923b2e13a29e7c03ccd411e AS builder-amd64 FROM arm32v7/golang:1.16.3-alpine3.13@sha256:c9fe18379aa3cea020dd22ce32a861232e087e1954a54a625cf95c0e5eafd74c AS builder-arm FROM arm64v8/golang:1.16.3-alpine3.13@sha256:3ac1ec8dc5ae7f05d2ac7197ed8870188fc80836d5fda118f9626dfdb76c0124 AS builder-arm64 FROM builder-${ARCH} AS builder ENV MORTY_VERSION="5489cf4f5876106b53293d4023d49de880421b27" WORKDIR $GOPATH/src/github.com/asciimoo/morty RUN apk upgrade --no-cache && \ apk add --no-cache git="2.30.2-r0" && \ git clone https://github.com/asciimoo/morty.git . && \ git checkout "${MORTY_VERSION}" RUN go get -d -v && gofmt -l ./ && go build . # STEP 2 build the image including only the binary FROM amd64/alpine:3.13.4@sha256:e103c1b4bf019dc290bcc7aca538dc2bf7a9d0fc836e186f5fa34945c5168310 AS base-amd64 FROM arm32v7/alpine:3.13.4@sha256:59b46c319f3b66dfda96faafd0c6959e9b2f409792d0236204f270dfd0235960 AS base-arm FROM arm64v8/alpine:3.13.4@sha256:071fa5de01a240dbef5be09d69f8fef2f89d68445d9175393773ee389b6f5935 AS base-arm64 FROM base-${ARCH} RUN apk upgrade --no-cache && \ apk --no-cache add ca-certificates="20191127-r5" && \ rm -f /var/cache/apk/* && \ adduser -D -h /usr/local/morty -s /bin/false morty morty COPY --from=builder /go/src/github.com/asciimoo/morty/morty /usr/local/morty/morty EXPOSE 3000 USER morty ENTRYPOINT ["/usr/local/morty/morty"]