# 阶段1: 构建
FROM golang:1.25-alpine AS builder

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

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

ENV GO111MODULE=on
ENV GOPROXY=https://goproxy.cn,direct
ENV CGO_ENABLED=0
ENV GOTOOLCHAIN=auto

WORKDIR /build

COPY go.mod go.sum ./
COPY common ./common

RUN go mod download

COPY main.go ./
COPY config.yml ./

RUN go build -ldflags="-s -w" -o main ./main.go

# 阶段2: 运行
FROM alpine:3.19

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

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

WORKDIR /app

COPY --from=builder /build/main .
COPY --from=builder /build/config.yml ./

RUN mkdir -p /app/resource/log/run \
             /app/resource/log/server \
    && adduser -D -u 1000 appuser \
    && chown -R appuser:appuser /app

USER appuser

EXPOSE 8000

CMD ["./main"]