#
# Cookbook:: ntp
# Recipe:: default
#
# Copyright:: 2010, OpenStreetMap Foundation.
# Copyright:: 2009, Opscode, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

include_recipe "prometheus"

package %w[
  chrony
  tzdata
]

execute "dpkg-reconfigure-tzdata" do
  action :nothing
  command "/usr/sbin/dpkg-reconfigure -f noninteractive tzdata"
  user "root"
  group "root"
end

link "/etc/localtime" do
  to "/usr/share/zoneinfo/#{node[:ntp][:tz]}"
  owner "root"
  group "root"
  notifies :run, "execute[dpkg-reconfigure-tzdata]", :immediately
end

template "/etc/chrony/chrony.conf" do
  source "chrony.conf.erb"
  owner "root"
  group "root"
  mode "644"
  notifies :restart, "service[chrony]"
end

service "systemd-timesyncd" do
  action [:stop, :disable]
end

systemd_service "chrony-restart" do
  service "chrony"
  dropin "restart"
  restart "on-failure"
  notifies :restart, "service[chrony]"
end

service "chrony" do
  action [:enable, :start]
end

prometheus_exporter "chrony" do
  port 9123
  options "--no-collector.dns-lookups"
end

# chrony occasionally marks all servers offline during a network outage.
# force online all sources during a chef run
execute "chronyc-online" do
  command "/usr/bin/chronyc online"
  user "root"
  group "root"
  ignore_failure true
  only_if "chronyc activity | grep -Eq '^0 sources online'"
end
