Handle Debian in NTP setup (refs #27160).

2.Common_services/2.NTP/0_setup.py

 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+import subprocess
 import utils
 
 
@@ -11,7 +12,17 @@ def setup(interactive=True):
             if server.strip():
                 servers += 'pool %s\n' % server.strip()
     if not servers:
-        servers = 'pool ntp.ubuntu.com\n'
+        if 'Ubuntu' in subprocess.getoutput('lsb_release -a'):
+            servers += 'pool 0.ubuntu.pool.ntp.org iburst\n'
+            servers += 'pool 1.ubuntu.pool.ntp.org iburst\n'
+            servers += 'pool 2.ubuntu.pool.ntp.org iburst\n'
+            servers += 'pool 3.ubuntu.pool.ntp.org iburst\n'
+            servers += 'pool ntp.ubuntu.com\n'
+        else:
+            servers += 'pool 0.debian.pool.ntp.org iburst\n'
+            servers += 'pool 1.debian.pool.ntp.org iburst\n'
+            servers += 'pool 2.debian.pool.ntp.org iburst\n'
+            servers += 'pool 3.debian.pool.ntp.org iburst\n'
     cmds = [
         # NTP
         'timedatectl set-ntp false',

global-conf.sh

@@ -13,7 +13,7 @@ SKYREACH_SSL_VERIFY='1'
 SKYREACH_API_KEY=
 SKYREACH_ACTIVATION_KEY=
 # NTP
-NTP_SERVER='ntp.ubuntu.com'
+NTP_SERVER=''
 # SSH
 SSH_ALLOWED_KEYS=
 SSH_MAINTENANCE_PORT=