2 # Cookbook:: prometheus
3 # Resource:: prometheus_exporter
5 # Copyright:: 2020, OpenStreetMap Foundation
7 # Licensed under the Apache License, Version 2.0 (the "License");
8 # you may not use this file except in compliance with the License.
9 # You may obtain a copy of the License at
11 # https://www.apache.org/licenses/LICENSE-2.0
13 # Unless required by applicable law or agreed to in writing, software
14 # distributed under the License is distributed on an "AS IS" BASIS,
15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 # See the License for the specific language governing permissions and
17 # limitations under the License.
20 default_action :create
22 property :exporter, :kind_of => String, :name_property => true
23 property :address, :kind_of => String
24 property :port, :kind_of => Integer, :required => [:create]
25 property :listen_switch, :kind_of => String, :default => "web.listen-address"
26 property :listen_type, :kind_of => String, :default => "address"
27 property :user, :kind_of => String, :default => "root"
28 property :command, :kind_of => String
29 property :options, :kind_of => [String, Array]
30 property :environment, :kind_of => Hash, :default => {}
31 property :service, :kind_of => String
32 property :metric_relabel, :kind_of => Array
33 property :register_target, :kind_of => [TrueClass, FalseClass], :default => true
36 systemd_service service_name do
37 description "Prometheus #{new_resource.exporter} exporter"
39 user new_resource.user
40 environment new_resource.environment
41 exec_start "#{executable_path} #{new_resource.command} #{executable_options}"
43 protect_system "strict"
45 no_new_privileges true
48 service service_name do
49 action [:enable, :start]
50 subscribes :restart, "systemd_service[#{service_name}]"
53 firewall_rule "accept-prometheus-#{new_resource.exporter}" do
58 dest_ports new_resource.port
59 only_if { node[:prometheus][:mode] == "external" }
62 if new_resource.register_target
63 node.default[:prometheus][:exporters][new_resource.port] = {
64 :name => new_resource.exporter,
65 :address => listen_address,
66 :metric_relabel => new_resource.metric_relabel
72 service service_name do
73 action [:disable, :stop]
76 systemd_service service_name do
82 service service_name do
89 if new_resource.service
90 "prometheus-#{new_resource.service}-exporter"
92 "prometheus-#{new_resource.exporter}-exporter"
97 "/opt/prometheus/exporters/#{new_resource.exporter}/#{new_resource.exporter}_exporter"
100 def executable_options
101 "--#{new_resource.listen_switch}=#{listen_argument} #{Array(new_resource.options).join(' ')}"
105 case new_resource.listen_type
106 when "address" then listen_address
107 when "url" then "http://#{listen_address}/metrics"
112 if new_resource.address
113 "#{new_resource.address}:#{new_resource.port}"
114 elsif node[:prometheus][:mode] == "wireguard"
115 "[#{node[:prometheus][:address]}]:#{new_resource.port}"
117 "#{node[:prometheus][:address]}:#{new_resource.port}"
123 subscribes :restart, "git[/opt/prometheus]"