update dockerfile

Dockerfile

@@ -1,14 +1,34 @@
-# Use an official Rust image as the base image
-FROM rust:latest
+# Use Rust official image for the build stage
+FROM rust:latest AS build
 
-# Set the working directory
-WORKDIR /app
+# Create and set the working directory
+WORKDIR /usr/src/app
+
+# Copy the Rust project to the working directory
+COPY . .
+
+# Install necessary dependencies for building the Rust project
+RUN apt-get update && apt-get install -y libssl-dev pkg-config && \
+    # Clean up the apt cache to reduce image size
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Build the Rust project
+# If your project uses a custom profile, replace `--release` with `--profile <your-profile>`
+RUN RUSTFLAGS='-C target-cpu=native' cargo build --release
 
-# Copy the project files into the container
-COPY / /app
+# Start a new stage to create a smaller final image
+FROM debian:bookworm
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y openssl ca-certificates && \
+    # Clean up the apt cache to reduce image size
+    apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Create a directory for the application
+WORKDIR /app
 
-# Install libssl-dev
-RUN apt-get update && apt-get install -y libssl-dev
+# Copy the built binary from the build stage to the application directory
+COPY --from=build /usr/src/app/target/release/blutgang /app/blutgang
 
-# Build and run the Rust project
-CMD ["cargo", "run", "--profile", "maxperf", "--", "-c", "config.toml"]
+# Set the command to run the application
+CMD ["./blutgang", "-c", "config.toml"]