docker support

APP_PROFILER/Dockerfile

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+FROM python:3.12-alpine
+
+# Install OpenVPN, OpenRC and other system deps
+RUN apk add --no-cache openvpn openrc iproute2 bash
+
+WORKDIR /app
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy source code and entrypoint
+COPY . .
+RUN chmod +x entrypoint.sh
+
+# Expose API port
+EXPOSE 8000
+# Expose OpenVPN port (default 1194 UDP)
+EXPOSE 1194/udp
+
+ENTRYPOINT ["./entrypoint.sh"]

APP_PROFILER/entrypoint.sh

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+#!/bin/sh
+
+# EnsureTUN device exists
+if [ ! -c /dev/net/tun ]; then
+    mkdir -p /dev/net
+    mknod /dev/net/tun c 10 200
+    chmod 600 /dev/net/tun
+fi
+
+# Enable IP forwarding
+sysctl -w net.ipv4.ip_forward=1
+
+# Start OpenRC (needed for rc-service if we use it, but better to start openvpn directly or via rc)
+# Since we are in Alpine, we can try to start the service if configured, 
+# but Container 4 main.py might expect rc-service to work.
+openrc default
+
+# Start the APP_PROFILER API
+# We use 0.0.0.0 to be reachable from other containers
+python main.py

APP_PROFILER/requirements.txt

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+fastapi
+uvicorn
+sqlalchemy
+psutil
+python-multipart
+jinja2