feat(pillar-3): tune longhorn settings for power resilience on aerodrome and spaceport

scripts/tune_longhorn_settings.py

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+import sys
+import paramiko
+
+sys.stdout.reconfigure(encoding='utf-8')
+
+def main():
+    clusters = [
+        ("aerodrome", "140.44.4.11"),
+        ("spaceport", "140.44.4.41")
+    ]
+    for name, host in clusters:
+        print(f"=== Configuring Longhorn settings on {name} ({host}) ===")
+        ssh = paramiko.SSHClient()
+        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        ssh.connect(host, username='root', key_filename=r'C:\Users\Snarf\.ssh\id_ed25519_snarfnet', timeout=10)
+
+        # 1. replica-replenishment-wait-interval -> 300
+        cmd1 = "kubectl patch setting.longhorn.io replica-replenishment-wait-interval -n longhorn-system --type=merge -p '{\"value\":\"300\"}'"
+        stdin, stdout, stderr = ssh.exec_command(cmd1)
+        print("replica-replenishment-wait-interval:", stdout.read().decode().strip(), stderr.read().decode().strip())
+
+        # 2. node-down-pod-deletion-policy -> delete-deployment-pod
+        cmd2 = "kubectl patch setting.longhorn.io node-down-pod-deletion-policy -n longhorn-system --type=merge -p '{\"value\":\"delete-deployment-pod\"}'"
+        stdin, stdout, stderr = ssh.exec_command(cmd2)
+        print("node-down-pod-deletion-policy:", stdout.read().decode().strip(), stderr.read().decode().strip())
+
+        # Verify
+        stdin, stdout, stderr = ssh.exec_command("kubectl get setting.longhorn.io replica-replenishment-wait-interval node-down-pod-deletion-policy -n longhorn-system -o custom-columns=NAME:.metadata.name,VALUE:.value")
+        print("VERIFIED:\n", stdout.read().decode().strip())
+        ssh.close()
+
+if __name__ == '__main__':
+    main()