Dockerfile

# Stage 1: Build the web server binary
FROM rust:1.85-bookworm AS builder

WORKDIR /app

# Copy workspace manifests first for dependency caching
COPY Cargo.toml Cargo.lock ./
COPY crates/git-kanban-core/Cargo.toml crates/git-kanban-core/Cargo.toml
COPY crates/git-kanban-web/Cargo.toml crates/git-kanban-web/Cargo.toml
COPY crates/git-kanban-tui/Cargo.toml crates/git-kanban-tui/Cargo.toml

# Create dummy source files so cargo can resolve the workspace and cache deps
RUN mkdir -p crates/git-kanban-core/src && echo "pub fn _dummy() {}" > crates/git-kanban-core/src/lib.rs \
    && mkdir -p crates/git-kanban-web/src && echo "fn main() {}" > crates/git-kanban-web/src/main.rs \
    && mkdir -p crates/git-kanban-tui/src && echo "fn main() {}" > crates/git-kanban-tui/src/main.rs

# Build dependencies only (cached unless Cargo.toml changes)
RUN cargo build --release -p git-kanban-web 2>/dev/null || true

# Copy real source code and migrations
COPY crates/git-kanban-core/src crates/git-kanban-core/src
COPY crates/git-kanban-web/src crates/git-kanban-web/src
COPY crates/git-kanban-tui/src crates/git-kanban-tui/src
COPY migrations migrations

# Touch source files to invalidate cached compilation (not the deps)
RUN touch crates/git-kanban-core/src/lib.rs crates/git-kanban-web/src/main.rs

# Build the web server
RUN cargo build --release -p git-kanban-web

# Stage 2: Build the Yew WASM frontend
FROM rust:1.85-bookworm AS frontend

RUN rustup target add wasm32-unknown-unknown \
    && cargo install trunk

WORKDIR /app/crates/git-kanban-frontend

COPY crates/git-kanban-frontend/ .

RUN trunk build --release

# Stage 3: Minimal runtime image
FROM debian:bookworm-slim AS runtime

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

RUN useradd --create-home --shell /bin/bash kanban
USER kanban
WORKDIR /home/kanban

# Copy the compiled binary
COPY --from=builder /app/target/release/git-kanban-web .

# Copy the frontend dist
COPY --from=frontend /app/crates/git-kanban-frontend/dist crates/git-kanban-frontend/dist

# Copy migrations (embedded by sqlx, but include for reference)
COPY --from=builder /app/migrations migrations

ENV GITHUB_TOKEN=""
ENV DATABASE_URL="sqlite:git-kanban.db?mode=rwc"
ENV GIT_KANBAN_HOST="0.0.0.0"
ENV GIT_KANBAN_PORT="3000"
ENV RUST_LOG="git_kanban_web=info,git_kanban_core=info"

EXPOSE 3000

CMD ["./git-kanban-web"]