Dockerfile

# Stage 1: Build the application
FROM rust:1.88-bullseye AS builder

WORKDIR /app

# Copy the source code into the builder
COPY . .

# Build the application in release mode.
# Use BuildKit cache mounts to persist cargo registry and build artifacts
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/usr/local/cargo/git \
    --mount=type=cache,target=/app/target \
    cargo build --release && \
    cp /app/target/release/killbot-rust /app/killbot-rust

# Stage 2: Create the final, minimal image
FROM debian:bullseye

WORKDIR /app

# Copy the compiled binary from the builder stage
COPY --from=builder /app/killbot-rust .

# The config directory will be mounted as a volume by docker-compose.
# No need to copy it here.

# Set the command to run the application
CMD ["./killbot-rust"]