ChatRoom/Dockerfile

# 第一阶段：构建
FROM golang:1.24-alpine AS builder

WORKDIR /app
RUN apk add --no-cache gcc musl-dev  # 仅当需要 CGO 时才保留（你的代码可能不需要，但保留无害）

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

COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o server ./cmd/server/main.go

# 第二阶段：运行
FROM alpine:latest
RUN addgroup -g 1001 -S app && adduser -u 1001 -S app -G app
WORKDIR /app
COPY --from=builder /app/server .
COPY --from=builder /app/web ./web
RUN chown -R app:app /app
USER app
EXPOSE 2779
ENV PORT=2779
CMD ["./server"]