# Build stage
FROM golang:1.25-alpine AS builder

WORKDIR /src

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

COPY . .

ARG VERSION=dev
RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w -X main.version=${VERSION}" -o /out/exploredns ./cmd/exploredns

# Final stage
FROM alpine:3.21

RUN apk --no-cache add ca-certificates

COPY --from=builder /out/exploredns /usr/local/bin/exploredns

ENTRYPOINT ["exploredns"]