# Build stage
FROM rust:1.75-slim-bookworm AS builder
WORKDIR /app
# Install build dependencies
RUN apt-get update && apt-get install -y \
pkg-config \
libdbus-1-dev \
&& rm -rf /var/lib/apt/lists/*
# Copy manifests
COPY Cargo.toml Cargo.lock ./
# Create dummy src to cache dependencies
RUN mkdir src && \
echo "fn main() {}" > src/main.rs && \
echo "pub fn dummy() {}" > src/lib.rs
# Build dependencies only (this layer is cached)
RUN cargo build --release && rm -rf src
# Copy actual source code
COPY src ./src
# Build the actual application
RUN touch src/main.rs src/lib.rs && cargo build --release
# Runtime stage
FROM debian:bookworm-slim
# Install runtime dependencies for notifications (optional)
RUN apt-get update && apt-get install -y \
libdbus-1-3 \
&& rm -rf /var/lib/apt/lists/*
# Create non-root user for security
RUN useradd -m -u 1000 logwatcher
# Copy binary from builder
COPY --from=builder /app/target/release/logwatcher /usr/local/bin/logwatcher
# Set ownership
RUN chown logwatcher:logwatcher /usr/local/bin/logwatcher
USER logwatcher
ENTRYPOINT ["logwatcher"]
CMD ["--help"]