feat: add infrastructure automation scripts and master improvement plan

scripts/check_arp_table.py

@@ -0,0 +1,19 @@
+import os
+import sys
+import paramiko
+
+sys.stdout.reconfigure(encoding="utf-8")
+pkey = paramiko.Ed25519Key.from_private_key_file(os.path.expanduser('~/.ssh/id_ed25519_snarfnet'))
+
+client = paramiko.SSHClient()
+client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+client.connect("140.44.4.11", username="root", pkey=pkey, timeout=10)
+
+cmd = "ip neighbor show"
+stdin, stdout, stderr = client.exec_command(cmd)
+print("ARP TABLE ON CTL01:")
+for line in stdout.read().decode().splitlines():
+    if "140.44.4." in line:
+        print(line)
+client.close()
+