FROM golang:1.21-alpine3.18 as builder

RUN apk add make

WORKDIR /go/src/app

COPY go.mod go.sum ./

RUN go mod download

COPY . .

RUN make build

FROM alpine:3.18

COPY --from=builder /go/src/app/dist/guardian /usr/bin/guardian

RUN apk update

RUN apk add ca-certificates

# glibc compatibility library, since go binaries

# don't work well with musl libc that alpine uses

RUN apk add libc6-compat

EXPOSE 8080

ENTRYPOINT ["./guardian"]