Better handling for missing NetDev.Device

- Closes: #1777

Overlays:
- ifcfg
- NetworkManager

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

overlays/NetworkManager/internal/networkmanager_test.go

@@ -50,7 +50,7 @@ Filename: warewulf-unmanaged.conf
 plugins=keyfile
 
 [keyfile]
-unmanaged-devices=except:mac:e6:92:39:49:7b:03,except:interface-name:wwnet0,except:mac:9a:77:29:73:14:f1,except:interface-name:wwnet1,
+unmanaged-devices=except:mac:e6:92:39:49:7b:03,except:interface-name:wwnet0,except:mac:9a:77:29:73:14:f1,except:interface-name:wwnet1
 `,
 		},
 		"NetworkManager:ww4-managed.ww": {
@@ -119,6 +119,74 @@ gateway=192.168.3.1
 dns=8.8.8.8;8.8.4.4;
 dns-search=example.com;example.net;
 
+[ipv6]
+addr-gen-mode=stable-privacy
+method=ignore
+never-default=true
+`,
+		},
+		"NetworkManager:ww4-managed.ww without device": {
+			nodes_conf: `
+nodes:
+  node1:
+    network devices:
+      default:
+        onboot: true
+        hwaddr: e6:92:39:49:7b:03
+        ipaddr: 192.168.3.21
+        netmask: 255.255.255.0
+        gateway: 192.168.3.1
+      secondary:
+        onboot: true
+        hwaddr: 9a:77:29:73:14:f1
+        ipaddr: 192.168.3.22
+        netmask: 255.255.255.0
+        gateway: 192.168.3.1
+        tags:
+          DNS1: 8.8.8.8
+          DNS2: 8.8.4.4
+          DNSSEARCH: "example.com;example.net;"
+`,
+			args: []string{"--render", "node1", "NetworkManager", "etc/NetworkManager/system-connections/ww4-managed.ww"},
+			log: `backupFile: true
+writeFile: true
+Filename: warewulf-default.conf
+
+# This file is autogenerated by warewulf
+
+[connection]
+id=default
+type=ethernet
+autoconnect=true
+[ethernet]
+mac-address=e6:92:39:49:7b:03
+[ipv4]
+method=manual
+address=192.168.3.21/24
+gateway=192.168.3.1
+
+[ipv6]
+addr-gen-mode=stable-privacy
+method=ignore
+never-default=true
+backupFile: true
+writeFile: true
+Filename: warewulf-secondary.conf
+# This file is autogenerated by warewulf
+
+[connection]
+id=secondary
+type=ethernet
+autoconnect=true
+[ethernet]
+mac-address=9a:77:29:73:14:f1
+[ipv4]
+method=manual
+address=192.168.3.22/24
+gateway=192.168.3.1
+dns=8.8.8.8;8.8.4.4;
+dns-search=example.com;example.net;
+
 [ipv6]
 addr-gen-mode=stable-privacy
 method=ignore
@@ -158,7 +226,7 @@ Filename: warewulf-unmanaged.conf
 plugins=keyfile
 
 [keyfile]
-unmanaged-devices=except:interface-name:wwnet0,except:mac:9a:77:29:73:14:f1,except:interface-name:wwnet1,
+unmanaged-devices=except:interface-name:wwnet0,except:mac:9a:77:29:73:14:f1,except:interface-name:wwnet1
 `,
 		},
 		"NetworkManager:ww4-managed.ww with vlan": {