Have confignet pause until connectivity restored

If we are reconfiguring network for a diskless node, wait for
things to settle back in before continuing.

confluent_osdeploy/common/profile/scripts/confignet

@@ -460,6 +460,9 @@ class NetworkManager(object):
 
 
 if __name__ == '__main__':
+    checktarg = None
+    if '-c' in sys.argv:
+        checktarg = sys.argv[sys.argv.index('-c') + 1]
     havefirewall = subprocess.call(['systemctl', 'status', 'firewalld'])
     havefirewall = havefirewall == 0
     if havefirewall:
@@ -576,4 +579,18 @@ if __name__ == '__main__':
         except Exception:
             maxwait -= 1
             time.sleep(1)
+    maxwait = 10
+    if checktarg:
+        while maxwait:
+            try:
+                addrinf = socket.getaddrinfo(checktarg, 443)[0]
+                psock = socket.socket(addrinf[0], socket.SOCK_STREAM)
+                psock.settimeout(10)
+                psock.connect(addrinf[4])
+                psock.close()
+                break
+            except Exception:
+                maxwait -= 1
+                time.sleep(1)
+
 

confluent_osdeploy/el8-diskless/profiles/default/scripts/onboot.sh

@@ -59,7 +59,7 @@ rpm --import /etc/pki/rpm-gpg/*
 
 run_remote_python add_local_repositories
 run_remote_python syncfileclient
-run_remote_python confignet
+run_remote_python confignet -c $confluent_mgr
 
 run_remote onboot.custom
 # onboot scripts may be placed into onboot.d, e.g. onboot.d/01-firstaction.sh, onboot.d/02-secondaction.sh

confluent_osdeploy/el9-diskless/profiles/default/scripts/onboot.sh

@@ -53,7 +53,7 @@ rpm --import /etc/pki/rpm-gpg/*
 
 run_remote_python add_local_repositories
 run_remote_python syncfileclient
-run_remote_python confignet
+run_remote_python confignet -c $confluent_mgr
 
 run_remote onboot.custom
 # onboot scripts may be placed into onboot.d, e.g. onboot.d/01-firstaction.sh, onboot.d/02-secondaction.sh