Imported Debian patch 4.8.10-2

ipaclient/install/timeconf.py

@@ -28,6 +28,7 @@ from ipapython import ipautil
 from ipaplatform.tasks import tasks
 from ipaplatform import services
 from ipaplatform.paths import paths
+from ipapython.ipautil import user_input
 
 logger = logging.getLogger(__name__)
 
@@ -39,6 +40,36 @@ def __backup_config(path, fstore=None):
         shutil.copy(path, "%s.ipasave" % (path))
 
 
+def get_time_source():
+    """
+    While in interactive installation user has to specify NTP server or pool
+    to be used in chrony configuration. This method asks user input on these
+    values in case that they were not specified before installation start.
+    """
+    ntp_servers = []
+    ntp_pool = ""
+
+    if ipautil.user_input("Do you want to configure chrony "
+                          "with NTP server or pool address?", False):
+        servers = user_input("Enter NTP source server addresses separated by "
+                             "comma, or press Enter to skip", allow_empty=True)
+        if servers:  # if user input is not '' (empty)
+            logger.debug("User provided NTP server(s):")
+            # cut possible multiple servers separated by comma into list
+            for server in servers.split(","):
+                # users tend to separate servers by ", " so strip() whitespaces
+                server = server.strip()
+                ntp_servers.append(server)
+                logger.debug("\t%s", server)
+
+        ntp_pool = user_input("Enter a NTP source pool address, "
+                              "or press Enter to skip", allow_empty=True)
+        if ntp_pool:  # if user input is not '' (empty)
+            logger.debug("User provided NTP pool:\t%s", ntp_pool)
+
+    return ntp_servers, ntp_pool
+
+
 def sync_chrony():
     """
     This method enables chronyd service on boot and restarts it to reload