# syntax=docker/dockerfile:1
FROM golang:1.24-alpine AS builder

RUN apk add --no-cache git

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

COPY . .

# Build both binaries as static.
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /tunnel-server ./cmd/server/
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /tunnel-client ./cmd/client/

# --- Server image ---
FROM alpine:3.21 AS server

RUN apk add --no-cache ca-certificates

COPY --from=builder /tunnel-server /usr/local/bin/tunnel-server

RUN mkdir -p /keys /etc/traefik/dynamic

EXPOSE 2222
EXPOSE 10000-10100

ENTRYPOINT ["tunnel-server"]

# --- Client image ---
FROM alpine:3.21 AS client

RUN apk add --no-cache ca-certificates

COPY --from=builder /tunnel-client /usr/local/bin/tunnel-client

RUN mkdir -p /keys

ENTRYPOINT ["tunnel-client"]