# Multi-stage build for MrixsCraft backend.
# Final image: ~20 MB, non-root, no toolchain.

FROM golang:1.25-alpine AS builder
WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /mc-backend ./cmd/server

FROM alpine:3.19
RUN apk --no-cache add ca-certificates
RUN adduser -D -g '' appuser
WORKDIR /app
COPY --from=builder /mc-backend .
COPY ./migrations /migrations
USER root
EXPOSE 8080
ENTRYPOINT ["/bin/sh", "-c", "chown -R appuser:appuser /var/www/cdn/skins && exec /app/mc-backend"]