openstack-manuals/doc/install-guide/source/environment-ntp-other.rst

Other nodes

Install and configure components

Install the packages:

ubuntu or debian

# apt-get install chrony

rdo

# yum install chrony

obs

On openSUSE:

# zypper addrepo -f obs://network:time/openSUSE_13.2 network_time
# zypper refresh
# zypper install chrony

On SLES:

# zypper addrepo -f obs://network:time/SLE_12 network_time
# zypper refresh
# zypper install chrony

Note

The packages are signed by GPG key 17280DDF. You should verify the fingerprint of the imported GPG key before using it.

Key Name:         network OBS Project <network@build.opensuse.org>
Key Fingerprint:  0080689B E757A876 CB7DC269 62EB1A09 17280DDF
Key Created:      Tue 24 Sep 2013 04:04:12 PM UTC
Key Expires:      Thu 03 Dec 2015 04:04:12 PM UTC

Configure the network and compute nodes to reference the controller node.

ubuntu or debian

1. Edit the /etc/chrony/chrony.conf file and comment out or remove all but one server key. Change it to reference the controller node:

   server controller iburst

2. Restart the NTP service:

   # service chrony restart

rdo or obs

1. Edit the /etc/chrony.conf file and comment out or remove all but one server key. Change it to reference the controller node:

   server controller iburst

2. Start the NTP service and configure it to start when the system boots:

   # systemctl enable chronyd.service
   # systemctl start chronyd.service