mosys0815 opened a new issue, #10996:
URL: https://github.com/apache/cloudstack/issues/10996

   I am currently preparing a cluster and installed a new (the 1st) management 
server.
   That server's network is a fully routed L3-network.
   Starting the cloudstack-management service does not create the server 
certificate from root-ca with the following error:
   
   ```
   2025-06-10 08:28:57,082 DEBUG [o.a.c.f.c.i.ConfigDepotImpl] (main:[]) 
(logid:) Retrieving keys from RootCAProvider
   2025-06-10 08:28:58,589 DEBUG [o.a.c.s.l.r.ExtensionRegistry] (main:[]) 
(logid:) Registering extension [RootCAProvider] in [Ca Providers Registry]
   2025-06-10 08:28:58,589 DEBUG [o.a.c.s.l.r.RegistryLifecycle] (main:[]) 
(logid:) Registered org.apache.cloudstack.ca.provider.RootCAProvider@611f82a8
   2025-06-10 08:28:58,589 INFO  [o.a.c.s.l.CloudStackExtendedLifeCycle] 
(main:[]) (logid:) Configuring CloudStack Components
   2025-06-10 08:28:58,589 INFO  [o.a.c.s.l.CloudStackExtendedLifeCycle] 
(main:[]) (logid:) configuring bean RootCAProvider.
   2025-06-10 08:28:59,037 DEBUG [c.c.u.s.Script] (main:[]) (logid:) Executing 
command [/bin/bash -c ip route show default 0.0.0.0/0 | head -1 | awk '{print 
$5}' ].
   2025-06-10 08:28:59,043 DEBUG [c.c.u.s.Script] (main:[]) (logid:) 
Successfully executed process [105870] for command [/bin/bash -c ip route show 
default 0.0.0.0/0 | head -1 | awk '{print $5}' ].
   2025-06-10 08:28:59,127 ERROR [o.a.c.s.l.CloudStackExtendedLifeCycle] 
(main:[]) (logid:) Error on configuring bean RootCAProvider - Cannot invoke 
"java.net.NetworkInterface.getInterfaceAddresses()" because "nic" is null 
java.lang.NullPointerException: Cannot invoke 
"java.net.NetworkInterface.getInterfaceAddresses()" because "nic" is null
   ```
   
   * these are the active network-interfaces, "hostip" is the bgp-announced ip 
on a virtual interface for networking, eth1* are the ethernet interfaces
   ```
   ~# ip -4 -br a | egrep '(eth1|hostip)'
   eth1a            UP             10.72.44.198/30
   eth1b            UP             10.72.45.198/30
   hostip           UNKNOWN        10.72.44.3/32
   ```
   
   * CS did retrieve the correct ip from hostip interface
   ```
   ~# ip route show default 0.0.0.0/0 | head -1 | awk '{print $5}'
   10.72.44.3
   ```
   
   * certificate check
   ```
   ~# openssl s_client -connect 10.72.44.3:9090 </dev/null 2>/dev/null | 
openssl x509 -noout -ext subjectAltNam
   Could not read certificate from <stdin>
   4087895B58700000:error:1608010C:STORE 
routines:ossl_store_handle_load_result:unsupported:../crypto/store/store_result.c:151:
   Unable to load certificate
   ```
   
   For testing i installed 2 virtual machines with cloudstack-management and a 
new mysql-database on one of these. Both instances are connected on a layer 2 
network.
   Here the management servers (one after another) came once with fully 
functional certificates, both servers see each other as peers in the cs-ui 
management server overview.
   
   * certificates SAN on one of the test-instances:
   ```
   ~# openssl s_client -connect 10.65.254.48:9090 </dev/null 2>/dev/null | 
openssl x509 -noout -ext subjectAltName
   X509v3 Subject Alternative Name:
       IP Address:FE80:0:0:0:1C00:B1FF:FE00:164, IP Address:10.65.254.48, 
DNS:<redacted> DNS:cloudstack.internal
   ```
   
   I then connected the former server with a fresh installation  to the 
database of my test-setup.
   I got the same error as mentioned above.
   
   I suspect some issue with the L3-network and retrieving some 
networking-stuff by cloudstack-management-server.
   
   Any idea how to proceed here?
   


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