FROM golang:1.26-alpine AS builder

WORKDIR /app

ENV GOPROXY=https://goproxy.cn,direct \
    GOSUMDB=sum.golang.google.cn

COPY go.mod go.sum ./
RUN go mod download

COPY cmd ./cmd
COPY docs ./docs
COPY internal ./internal

RUN CGO_ENABLED=0 GOOS=linux go build -o /out/authserver ./cmd/server

FROM alpine:3.22

RUN apk add --no-cache ca-certificates tzdata

WORKDIR /authserver/backend

COPY --from=builder /out/authserver /usr/local/bin/authserver

EXPOSE 8083

CMD ["authserver"]