Merge "Support time synchronization on hosts"

diff --cc docs/InstallGuide.rst
index 26b096a,fb292fb..6ed9c32
--- 1/docs/InstallGuide.rst
--- 2/docs/InstallGuide.rst
+++ b/docs/InstallGuide.rst
@@@ -267,25 -291,13 +291,31 @@@ Final configuration can resemble the fo
      resources_filename: offline-onap-3.0.1-resources.tar
      app_data_path: /opt/onap
      app_name: onap
+     timesync:
+       servers:
+         - 192.168.0.1
+         - 192.168.0.2
+       slewclock: true
+       timezone: UTC
  
 +.. _oooi_installguide_config_appconfig_overrides:
 +
 +Helm chart value overrides
 +^^^^^^^^^^^^^^^^^^^^^^^^^^
 +
 +If there is a need to change onap settings such as managed openstack credentials, service ports, or even docker image versions used, you can do this by putting settings under the ``overrides`` key in ``application_configuration.yml``.
 +These settings will override helm values originally stored in ``values.yaml`` files in helm chart directories.
 +
 +For example, the following lines could be appended to ``application_configuration.yml`` to set up managed openstack credentials for onap's so component::
 +
 +    overrides:
 +      so:
 +        config:
 +          openStackUserName: "os_user"
 +          openStackRegion: "region_name"
 +          openStackKeyStoneUrl: "keystone_url"
 +          openStackEncryptedPasswordHere: "encrypted_password"
 +
  .. _oooi_installguide_config_ssh:
  
  SSH authentication