🚧 WIP

Dockerfile

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+# WAGO 750-362 Modbus TCP simulator — service container
+#
+# Build:  docker build -t wago-sim .
+# Run:    docker run -d --name wago-sim -p 502:502 \
+#           -v ./config:/app/config:ro -v ./scenarios:/app/scenarios:ro \
+#           -e WAGO_SIM_NODE=config/pump_node.yaml \
+#           -e WAGO_SIM_PORT=502 wago-sim
+#
+# Or with compose: docker compose up -d
+
+FROM python:3.12-slim AS base
+
+# Don't buffer stdout/stderr — service logs must stream immediately
+# WAGO_SIM_VERBOSE=1 enables plain-text Modbus request tracing.
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    WAGO_SIM_NODE=config/pump_node.yaml \
+    WAGO_SIM_HOST=0.0.0.0 \
+    WAGO_SIM_PORT=502
+
+WORKDIR /app
+
+# Install the package first (layer caching: dependencies rarely change)
+COPY pyproject.toml README.md ./
+COPY src ./src
+RUN pip install --no-cache-dir .
+
+# Node configurations and scenarios are mounted at runtime;
+# the example files are baked in for out-of-the-box startup.
+COPY config ./config
+COPY scenarios ./scenarios
+COPY plugins ./plugins
+
+# Non-root user: the Modbus port (502) is configured via WAGO_SIM_PORT,
+# so no privileged ports are needed inside the container.
+RUN useradd --system --no-create-home wago-sim \
+    && chown -R wago-sim:wago-sim /app
+USER wago-sim
+
+# Built-in health check: attempt a TCP connect to the Modbus port.
+# A full MBAP request/response would be better, but keep the image slim
+# (no curl/wget) — the TCP probe is sufficient for compose/Swarm/K8s
+# restart decisions.
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
+    CMD python -c "import socket, os; s=socket.create_connection(('127.0.0.1', int(os.environ['WAGO_SIM_PORT'])), timeout=3); s.close()"
+
+# EXPOSE is documentation only; compose maps the actual port.
+# Use 5020 on the host if 502 requires privileges on your machine.
+EXPOSE 502
+
+# The console script runs the server until SIGTERM (docker stop).
+CMD ["wago-sim", "serve"]