FROM golang:1.18-alpine AS build_base
WORKDIR /app

RUN apk add git
RUN apk add build-base

COPY go.mod .
COPY go.sum .
RUN go mod download
COPY . .
RUN CGO_ENABLED=1 GOOS=linux go build -o gw ./cmd/gw

FROM alpine:3.9 
COPY --from=build_base /app/gw  /app/gw

CMD ["/app/gw"]