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 :port, :kind_of => Integer, :required => [:create]
24 property :listen_switch, :kind_of => String, :default => "web.listen-address"
25 property :listen_type, :kind_of => String, :default => "address"
26 property :user, :kind_of => String, :default => "root"
27 property :options, :kind_of => [String, Array]
28 property :environment, :kind_of => Hash, :default => {}
31 systemd_service service_name do
32 description "Prometheus #{new_resource.exporter} exporter"
34 user new_resource.user
35 environment new_resource.environment
36 exec_start "#{executable_path} #{executable_options}"
38 protect_system "strict"
40 no_new_privileges true
43 service service_name do
44 action [:enable, :start]
45 subscribes :restart, "systemd_service[#{service_name}]"
48 firewall_rule "accept-prometheus-#{new_resource.exporter}" do
53 dest_ports new_resource.port
54 only_if { node[:prometheus][:mode] == "external" }
57 node.default[:prometheus][:exporters][new_resource.exporter] = listen_address
61 service service_name do
62 action [:disable, :stop]
65 systemd_service service_name do
71 service service_name do
78 "prometheus-#{new_resource.exporter}-exporter"
82 "/opt/prometheus/exporters/#{new_resource.exporter}/#{new_resource.exporter}_exporter"
85 def executable_options
86 "--#{new_resource.listen_switch}=#{listen_argument} #{Array(new_resource.options).join(' ')}"
90 case new_resource.listen_type
91 when "address" then listen_address
92 when "url" then "http://#{listen_address}/metrics"
97 if node[:prometheus][:mode] == "wireguard"
98 "[#{node[:prometheus][:address]}]:#{new_resource.port}"
100 "#{node[:prometheus][:address]}:#{new_resource.port}"
106 subscribes :restart, "git[/opt/prometheus]"