# Build stage
FROM rust:1.83-slim-bookworm AS builder
WORKDIR /app
# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
pkg-config \
&& rm -rf /var/lib/apt/lists/*
# Copy manifests
COPY Cargo.toml Cargo.lock ./
# Create dummy source files for dependency caching
RUN mkdir -p src/cli src/openai \
&& echo "pub fn dummy() {}" > src/lib.rs \
&& echo "fn main() {}" > src/main.rs \
&& echo "pub mod config; pub mod handlers; pub mod state; pub use config::{Config, ConfigError}; pub use state::AppState; pub async fn run_server(_config: Config) -> Result<(), Box<dyn std::error::Error>> { Ok(()) }" > src/cli/mod.rs \
&& echo "pub struct Config; pub enum ConfigError {}" > src/cli/config.rs \
&& echo "" > src/cli/handlers.rs \
&& echo "pub struct AppState;" > src/cli/state.rs \
&& echo "" > src/openai/mod.rs
# Build dependencies (this layer is cached)
RUN cargo build --release
# Remove dummy source files
RUN rm -rf src
# Copy actual source code
COPY src ./src
# Build the actual application
RUN touch src/lib.rs src/main.rs \
&& cargo build --release
# Runtime stage
FROM debian:bookworm-slim
WORKDIR /app
# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates \
&& rm -rf /var/lib/apt/lists/*
# Copy the binary
COPY --from=builder /app/target/release/llmsim /usr/local/bin/
# Create non-root user
RUN useradd -m -s /bin/bash llmsim
USER llmsim
# Default configuration
ENV LLMSIM_HOST=0.0.0.0
ENV LLMSIM_PORT=8080
EXPOSE 8080
ENTRYPOINT ["llmsim", "serve"]