FROM golang:1.26-alpine AS build

RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
    && apk add --no-cache git

WORKDIR /src
COPY go.mod go.sum ./
RUN go env -w GOPROXY=https://goproxy.cn,direct && go mod download

COPY . .

ARG VERSION=1.0.0
ARG BUILD_TIME

RUN CGO_ENABLED=0 GOOS=linux go build \
    -ldflags "-s -w -X 'main.Version=${VERSION}' -X 'main.BuildTime=${BUILD_TIME}'" \
    -o /out/monitor-server ./cmd/server

# ── Runtime ──
FROM alpine:3.20

RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
    && apk add --no-cache ca-certificates tzdata \
    && rm -rf /var/cache/apk/*

WORKDIR /app
COPY --from=build /out/monitor-server .
COPY server.yaml .

RUN mkdir -p data

EXPOSE 8080
VOLUME ["/app/data"]

ENTRYPOINT ["./monitor-server"]