# syntax=docker/dockerfile:1.6
# Build sgl-router binary for k8s integration E2E.
# Context root: repo root (one level above experimental/sgl-router/).

# Matches rust-toolchain.toml's pinned channel, avoiding an in-build rustup channel-sync.
FROM rust:1.92-bookworm AS builder

# Pin to the exact toolchain pre-installed in the base image so rustup
# doesn't try to sync the channel manifest when it sees rust-toolchain.toml's
# `channel = "1.92"`.
ENV RUSTUP_TOOLCHAIN=1.92.0

# libssl-dev + pkg-config ship with rust:1.92-bookworm already; protoc does not,
# and the Indexer's build script needs it to compile the KV-indexer protos.
RUN apt-get update \
    && apt-get install -y --no-install-recommends protobuf-compiler \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /build

# Copy just the sgl-router crate (context is the repo root)
COPY experimental/sgl-router /build/experimental/sgl-router

RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/usr/local/cargo/git \
    --mount=type=cache,target=/build/experimental/sgl-router/target \
    cd /build/experimental/sgl-router \
    && cargo build --locked --release --bin sgl-router \
    && cp target/release/sgl-router /usr/local/bin/sgl-router

FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y ca-certificates \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /usr/local/bin/sgl-router /usr/local/bin/sgl-router

# Tiny tokenizer fixture used by the E2E config
COPY experimental/sgl-router/tests/fixtures/tiny_tokenizer.json /etc/tokenizer/tiny.json

EXPOSE 8090

ENTRYPOINT ["sgl-router"]