#
# Cookbook:: prometheus
# Recipe:: default
#
# Copyright:: 2020, OpenStreetMap Foundation
#
# 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 "networking"

if node.internal_ipaddress
  node.default[:prometheus][:mode] = "internal"
  node.default[:prometheus][:address] = node.internal_ipaddress
elsif node[:networking][:wireguard][:enabled]
  node.default[:prometheus][:mode] = "wireguard"
  node.default[:prometheus][:address] = node[:networking][:wireguard][:address]

  search(:node, "roles:prometheus") do |server|
    node.default[:networking][:wireguard][:peers] << {
      :public_key => server[:networking][:wireguard][:public_key],
      :allowed_ips => server[:networking][:wireguard][:address],
      :endpoint => "#{server.name}:51820"
    }
  end
else
  node.default[:prometheus][:mode] = "external"
  node.default[:prometheus][:address] = node.external_ipaddress(:family => :inet)
end

prometheus_exporter "node" do
  port 9100
  package_options "--no-install-recommends"
  exporter_options "--collector.ntp --collector.processes --collector.interrupts"
end