Heat templates for deploying OpenStack
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tripleo-heat-templates/firstboot/userdata_timesync.yaml

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heat_template_version: wallaby
parameters:
NtpServer:
default: ['0.pool.ntp.org', '1.pool.ntp.org', '2.pool.ntp.org', '3.pool.ntp.org']
description: NTP servers list. Defaulted to a set of pool.ntp.org servers
in order to have a sane default for Pacemaker deployments when
not configuring this parameter by default.
type: comma_delimited_list
NtpPool:
default: []
description: NTP pool list. Defaults to [], so only NtpServer is used by
default.
type: comma_delimited_list
NtpService:
default: chrony
description: NTP Service to use for the timesync bootstrap.
type: string
description: >
Uses cloud-init to bootstrap timesync configuration to ensure it is done
as soon as possible. We do additional and more complex configurations as
part of the deployment itself.
conditions:
use_chrony: {equals: [{get_param: NtpService}, 'chrony']}
resources:
userdata:
type: OS::Heat::MultipartMime
properties:
parts:
- config: {get_resource: timesync_chrony}
- config: {get_resource: timesync_sync}
# chrony sync needs chrony to be configured, if not chrony just exit
timesync_chrony:
type: OS::Heat::SoftwareConfig
properties:
config:
str_replace:
template: |
#!/bin/bash
if [ "$service" != "chrony" ]; then
exit 0
fi
set -x
SERVERS="$ntp_servers"
POOLS="$ntp_pools"
systemctl is-active --quiet chronyd || systemctl start chronyd
for server in $SERVERS; do
chronyc add server "${server}" iburst
done
for pool in $POOLS; do
chronyc add server "${pool}" iburst
done
chronyc sources
params:
$ntp_servers:
list_join: [' ', {get_param: NtpServer}]
$ntp_pools:
list_join: [' ', {get_param: NtpPool}]
$service: {get_param: NtpService}
# attempt a timesync on boot to ensure the time has been synced
timesync_sync:
type: OS::Heat::SoftwareConfig
properties:
config:
str_replace:
template: |
#!/bin/bash
set -xe
if [ "$service" = "chrony" ]; then
if command -v chronyc >/dev/null; then
chronyc makestep
chronyc waitsync 30
else
echo "No chronyc available, skipping sync"
fi
elif [ "$service" = "ntp" ]; then
if command -v ntpdate >/dev/null; then
ntpdate -u $ntp_servers
else
echo "No ntpdate available, skipping sync"
fi
fi
hwclock --systohc --utc
params:
$service: {get_param: NtpService}
$ntp_servers:
list_join: [' ', {get_param: NtpServer}]
outputs:
OS::stack_id:
value: {get_resource: userdata}