adding hostname() method and updating nsupdate

Author: Dan Lavu

sssd_test_framework/utils/network.py

@@ -40,6 +40,20 @@ def ip(self, name: str | None = None) -> IPUtils:
 
         return inst
 
+    def hostname(self, name: str | None = None) -> str | None:
+        """
+        Run hostname command.
+
+        :param name: Hostname.
+        :type name: str | None = None
+        """
+        if isinstance(name, str):
+            self.__rollback.append(f"hostname {self.host.conn.run('hostname').stdout.strip()}")
+            self.host.conn.run(f"hostname {name}")
+            return None
+        else:
+            return self.host.conn.run("hostname").stdout.strip()
+
     def tcpdump(self, pcap_path: str, args: list[Any] | None = None) -> SSHKillableProcess:
         """
         Run tcpdump. The packets are captured in ``pcap_path``.
@@ -136,17 +150,22 @@ def dig(self, address: str, server: str = "", reverse: bool = False) -> dict[str
 
         return None if not records else records[0]
 
-    def nslookup(self, args: list[str]) -> ProcessResult:
+    def nslookup(self, args: list[str], max_retries: int = 1, delay: int = 0) -> ProcessResult:
         """
         Execute nslookup command with given arguments.
 
         :param args: Arguments to ``nslookup``, defaults to None
         :type args: list[str]
-        :return: SSH Process result
+        :param max_retries: Retry attempts, optional
+        :type max_retries: int = 1
+        :param delay: Delay between attempts, optional
+        :type delay: int = 0
+        :return: Process result object.
         :rtype: ProcessResult
         """
-
-        return self.host.conn.exec(["nslookup", *args], raise_on_error=False)
+        return self.host.conn.exec(
+            ["nslookup", f"-retry={str(max_retries)}", f"-timeout={str(delay)}", *args], raise_on_error=False
+        )
 
     def teardown(self):
         """