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vpn-proxy/docker/entrypoint.sh

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#!/usr/bin/env bash
set -e
CONFIG_FILE="/app/data/client.json"
SINGBOX_PID=""
# Ensure data directory exists
mkdir -p /app/data
start_singbox() {
if [[ -f "$CONFIG_FILE" ]]; then
echo "$(date): Starting sing-box..."
sing-box run -c "$CONFIG_FILE" &
SINGBOX_PID=$!
echo "$(date): sing-box started with PID $SINGBOX_PID"
else
echo "$(date): Config file not found. Use web UI at :3456 to apply config."
SINGBOX_PID=""
fi
}
stop_singbox() {
if [[ -n "$SINGBOX_PID" ]]; then
echo "$(date): Stopping sing-box (PID $SINGBOX_PID)..."
kill "$SINGBOX_PID" 2>/dev/null || true
wait "$SINGBOX_PID" 2>/dev/null || true
SINGBOX_PID=""
fi
}
restart_singbox() {
stop_singbox
start_singbox
}
start_singbox
# Start Web UI Server
echo "$(date): Starting Web UI on port 3456..."
python3 /app/web/server.py &
WEBUI_PID=$!
# HTTP Control Server (Simple Netcat loop)
# Listens on 9090.
# Endpoint: /reload -> Restart sing-box (used by web_server.py after config change)
(
while true; do
# Read the request using nc.
REQ=$(echo -e "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n" | nc -l -p 9090 -q 1)
echo "$(date): Received request on 9090"
if echo "$REQ" | grep -q "GET /reload"; then
echo "$(date): Action: RELOAD (Restart sing-box)"
restart_singbox
else
echo "$(date): Unknown request or ping."
fi
done
) &
CONTROL_PID=$!
# Keep container alive - wait for any background process
echo "$(date): Entrypoint ready. Waiting for processes..."
# Wait indefinitely - if WebUI dies, restart container
wait $WEBUI_PID