feat: integrate Statime PTP daemon into Dockerfile and docker-compose

Co-authored-by: aider (openai/gpt-5) <aider@aider.chat>

Dockerfile

@@ -22,6 +22,10 @@ RUN rm -rf src
 COPY . .
 RUN cargo build --release --bin ntp_timeturner --bin ptp_probe
 
+# Build and install the Statime PTP daemon (from crates.io)
+# This installs the 'statime' binary into /usr/local/cargo/bin/statime in the builder image.
+RUN cargo install --locked statime-linux --version 0.4.0
+
 # Runtime image
 FROM debian:bookworm-slim AS runtime
 
@@ -35,6 +39,7 @@ WORKDIR /app
 
 COPY --from=builder /app/target/release/ntp_timeturner /usr/local/bin/ntp_timeturner
 COPY --from=builder /app/target/release/ptp_probe /usr/local/bin/ptp_probe
+COPY --from=builder /usr/local/cargo/bin/statime /usr/local/bin/statime
 COPY static ./static
 
 ENV RUST_LOG=info

docker-compose.yml

@@ -26,3 +26,23 @@ services:
     devices:
       - "/dev/ptp0:/dev/ptp0"
     restart: "no"
+
+  # PTP daemon using Statime (software PTP inside the container)
+  # Note: On macOS with Docker Desktop, low-level PTP networking features are limited.
+  # This service is most effective on a Linux host. Still useful for dev/testing.
+  statime:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: ntp_timeturner:latest
+    container_name: statime
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+      - SYS_TIME
+    command: ["statime", "-i", "eth0"]
+    # Expose standard PTP ports (udp/319, udp/320)
+    ports:
+      - "319:319/udp"
+      - "320:320/udp"
+    restart: unless-stopped