Dockerfile - Golang com base Alpine

Dockerfile

FROM golang:alpine AS builder

RUN apk update && apk add --no-cache git ca-certificates tzdata && update-ca-certificates

RUN adduser -D -g '' appuser

ENV GO111MODULE=on

WORKDIR /app

COPY go.mod .
COPY go.sum .

RUN go mod download

COPY . .

RUN go get -d -v

RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-w -s" -a -installsuffix cgo -o /app/hello .

FROM scratch

COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /etc/passwd /etc/passwd
COPY --from=builder /go/hello /app/

USER appuser

EXPOSE 8080

ENTRYPOINT ["/app/hello"]