feat: add infrastructure diagnostic and monitoring scripts

scripts/check_node_vlans.py

@@ -0,0 +1,15 @@
+import paramiko
+import sys
+
+sys.stdout.reconfigure(encoding='utf-8')
+key_path = r'C:\Users\Snarf\.ssh\id_ed25519_snarfnet'
+
+for ip, name in [("140.44.4.71", "Swarm/NPM"), ("140.44.4.11", "Aerodrome ctl01"), ("140.44.4.21", "Aerodrome wrk01")]:
+    print(f"\n=== {name} ({ip}) interfaces ===")
+    c = paramiko.SSHClient()
+    c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+    c.connect(ip, username="root", key_filename=key_path, timeout=5)
+    stdin, stdout, stderr = c.exec_command("ip -br addr; echo 'VLANs:'; ip -d link show type vlan")
+    print(stdout.read().decode())
+    c.close()
+