FROM golang:1.25-alpine AS builder
WORKDIR /app
# Dependencies are vendored — build fully offline (proxy.golang.org is geo-blocked from some regions)
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -mod=vendor -ldflags="-s -w" -o notification-svc ./cmd/server

FROM alpine:3.20
RUN apk add --no-cache ca-certificates tzdata
WORKDIR /app
COPY --from=builder /app/notification-svc .
EXPOSE 8080
CMD ["./notification-svc"]