33 lines
1 KiB
Docker
33 lines
1 KiB
Docker
# ── Build stage ──────────────────────────────────────────────────────────────
|
|
FROM golang:1.25-alpine AS builder
|
|
|
|
WORKDIR /app
|
|
|
|
# Copy go mod files first for layer caching
|
|
COPY go.mod go.sum ./
|
|
RUN go mod download
|
|
|
|
# Copy source and build
|
|
COPY . .
|
|
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o msdl-backend main.go
|
|
|
|
# ── Runtime stage ─────────────────────────────────────────────────────────────
|
|
FROM alpine:3.19
|
|
|
|
# Security: run as non-root
|
|
RUN addgroup -S app && adduser -S app -G app
|
|
|
|
WORKDIR /app
|
|
|
|
# Copy binary
|
|
COPY --from=builder /app/msdl-backend .
|
|
|
|
RUN chown -R app:app /app
|
|
USER app
|
|
|
|
EXPOSE 3002
|
|
|
|
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
|
|
CMD wget -qO- http://localhost:3002/health || exit 1
|
|
|
|
CMD ["./msdl-backend"]
|