CoreNetwork: do not look up IP for CN name printing

In various places, e.g., during initialization (before deployment), we
use the name of the CN object, previously including the IP address.
However, the IP might not be available (because the CN is not deployed),
so we would get warnings at this stage. Avoid this by not looking up the
IP.

There is now one place where we have to look up the IP address
separately.

Also, the exception in initialization might be misleading if we used
{self}, because we complain about no node being present, but the {self}
would include a non-existing node name => do not use it.

ci-scripts/cls_corenetwork.py

@@ -49,7 +49,7 @@ class CoreNetwork:
 		self._host = c.get('Host').strip()
 		if self._host == "%%current_host%%":
 			if node is None:
-				raise Exception(f"core network {self} requires node, but none provided (cannot replace %%current_host%%)")
+				raise Exception(f"core network {cn_name} requires node, but none provided (cannot replace %%current_host%%)")
 			self._host = node
 		if d is not None:
 			raise Exception("directory handling not implemented")
@@ -66,7 +66,7 @@ class CoreNetwork:
 		logging.info(f'initialized core {self} from {filename}')
 
 	def __str__(self):
-		return f"{self._cn_name}@{self._host} [IP: {self.getIP()}]"
+		return f"{self._cn_name}@{self._host}"
 
 	def __repr__(self):
 		return self.__str__()

ci-scripts/cls_oaicitest.py

@@ -862,7 +862,7 @@ class OaiCiTest():
 		success, output = cn.deploy()
 		logging.info(f"deployment core network {core_name} success {success}, output:\n{output}")
 		if success:
-			msg = f"Started {cn}"
+			msg = f"Started {cn} [{cn.getIP()}]"
 			HTML.CreateHtmlTestRowQueue(core_name, 'OK', [msg])
 		else:
 			msg = f"deployment of core network {core_name} FAILED"