# Slim runtime image for kez-chat-server, used by the "deploy fast" path.
#
# This Dockerfile expects two prebuilt artifacts in the build context:
#
#   ./prebuilt/kez-chat-server   — the Rust binary, linux/amd64
#   ./prebuilt/web/              — the Svelte SPA dist directory
#
# Both are produced LOCALLY by `deploy-fast.local.sh` via
# `docker buildx build --target=export` on the developer's fast
# machine, then rsynced to the remote. The remote build does no Rust
# or npm work — it just stitches together a tiny runtime image, which
# takes <5 seconds instead of the 8–12 minutes a full Rust rebuild
# takes on the (slower) production box.
#
# Build context = kez-chat/deploy/ (the directory holding this file
# and the prebuilt/ subdirectory). Pinned by docker-compose.fast.yml.

FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y --no-install-recommends \
        ca-certificates \
    && rm -rf /var/lib/apt/lists/* \
    && useradd -r -u 10001 -m kez

# Rust binary — must already be built for linux/amd64.
COPY prebuilt/kez-chat-server /usr/local/bin/kez-chat-server
RUN chmod +x /usr/local/bin/kez-chat-server

# SPA static files.
COPY prebuilt/web/ /app/web/

USER kez
WORKDIR /data

ENV KEZ_CHAT_BIND=0.0.0.0:6969 \
    KEZ_CHAT_DB=/data/kez-chat.db \
    KEZ_CHAT_SERVER=kez.lat \
    KEZ_CHAT_SIG_SERVER_URL=http://sig-server:7878 \
    KEZ_CHAT_WEB_DIR=/app/web \
    RUST_LOG=info

EXPOSE 6969
ENTRYPOINT ["/usr/local/bin/kez-chat-server"]