feat: WAN IP Guard - dynamic DNS updater with WhatsApp notifications

Checks public WAN IP every 5 minutes via systemd timer. On change:
- Updates A-records via DirectAdmin API (login key auth)
- Sends WhatsApp notification via wwebjs-api

deploy.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+set -euo pipefail
+
+# WAN IP Guard - Deployment script
+# Configure the variables below for your setup, then run from your local machine
+
+REMOTE_USER="your-ssh-user"
+REMOTE_HOST="your-server"
+REMOTE_DIR="/home/your-ssh-user/wan-ip-guard"
+
+echo "=== WAN IP Guard Deployment ==="
+echo ""
+
+# 1. Sync files to server
+echo "[1/5] Syncing files to ${REMOTE_HOST}..."
+rsync -avz --delete \
+  --exclude 'node_modules' \
+  --exclude '.git' \
+  --exclude '*.log' \
+  --exclude '.env' \
+  ./ "${REMOTE_USER}@${REMOTE_HOST}:${REMOTE_DIR}/"
+echo "  Done."
+echo ""
+
+# 2. Install dependencies
+echo "[2/5] Installing npm dependencies..."
+ssh "${REMOTE_USER}@${REMOTE_HOST}" "cd ${REMOTE_DIR} && npm install --omit=dev"
+echo "  Done."
+echo ""
+
+# 3. Create state directory
+echo "[3/5] Creating state directory..."
+ssh "${REMOTE_USER}@${REMOTE_HOST}" "sudo mkdir -p /var/lib/wan-ip-guard && sudo chown ${REMOTE_USER}:${REMOTE_USER} /var/lib/wan-ip-guard"
+echo "  Done."
+echo ""
+
+# 4. Install systemd service + timer
+echo "[4/5] Installing systemd units..."
+ssh "${REMOTE_USER}@${REMOTE_HOST}" "
+  sudo cp ${REMOTE_DIR}/systemd/wan-ip-guard.service /etc/systemd/system/
+  sudo cp ${REMOTE_DIR}/systemd/wan-ip-guard.timer /etc/systemd/system/
+  sudo systemctl daemon-reload
+  sudo systemctl enable wan-ip-guard.timer
+  sudo systemctl start wan-ip-guard.timer
+"
+echo "  Done."
+echo ""
+
+# 5. Verify
+echo "[5/5] Verifying deployment..."
+ssh "${REMOTE_USER}@${REMOTE_HOST}" "systemctl status wan-ip-guard.timer --no-pager"
+echo ""
+
+echo "=== Deployment complete! ==="
+echo "The timer runs every 5 minutes."
+echo "Check logs: ssh ${REMOTE_USER}@${REMOTE_HOST} journalctl -u wan-ip-guard -f"
+echo "Run manually: ssh ${REMOTE_USER}@${REMOTE_HOST} cd ${REMOTE_DIR} && node index.js"