From 0bfd4a7d53b3cad7aaa3f3403b585ac5c5867e14 Mon Sep 17 00:00:00 2001
From: Kazuhiro MUSASHI <simoom634@yahoo.co.jp>
Date: Sun, 5 Feb 2023 19:05:42 +0900
Subject: [PATCH] Deploy `systemd` config for `node_exporter`.

---
 .../files/etc/default/node_exporter                  |  1 +
 .../files/etc/systemd/system/node_exporter.service   | 11 +++++++++++
 .../prometheus-exporters/node_exporter_setup.rb      | 12 ++++++++++--
 3 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 cookbooks/prometheus-exporters/files/etc/default/node_exporter
 create mode 100644 cookbooks/prometheus-exporters/files/etc/systemd/system/node_exporter.service

diff --git a/cookbooks/prometheus-exporters/files/etc/default/node_exporter b/cookbooks/prometheus-exporters/files/etc/default/node_exporter
new file mode 100644
index 0000000..abb1a6b
--- /dev/null
+++ b/cookbooks/prometheus-exporters/files/etc/default/node_exporter
@@ -0,0 +1 @@
+OPTIONS=' --web.listen-address="127.0.0.1:9100" --collector.systemd'
diff --git a/cookbooks/prometheus-exporters/files/etc/systemd/system/node_exporter.service b/cookbooks/prometheus-exporters/files/etc/systemd/system/node_exporter.service
new file mode 100644
index 0000000..f3b7aa6
--- /dev/null
+++ b/cookbooks/prometheus-exporters/files/etc/systemd/system/node_exporter.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Node Exporter
+
+[Service]
+User=root
+Group=root
+EnvironmentFile=-/etc/default/node_exporter
+ExecStart=/usr/local/bin/node_exporter $OPTIONS
+
+[Install]
+WantedBy=multi-user.target
diff --git a/cookbooks/prometheus-exporters/node_exporter_setup.rb b/cookbooks/prometheus-exporters/node_exporter_setup.rb
index c907a3f..7bac76a 100644
--- a/cookbooks/prometheus-exporters/node_exporter_setup.rb
+++ b/cookbooks/prometheus-exporters/node_exporter_setup.rb
@@ -1,10 +1,18 @@
 # Deploy the `supervisord` configuration:
-remote_file '/etc/supervisor/conf.d/node_exporter.conf' do
+remote_file '/etc/systemd/system/node_exporter.service' do
   owner 'root'
   group 'root'
   mode '644'
+end
 
-  notifies :restart, 'service[supervisor]'
+remote_file '/etc/default/node_exporter' do
+  owner 'root'
+  group 'root'
+  mode '644'
+end
+
+service 'node_exporter' do
+  action [ :enable, :start]
 end
 
 # Deploy `consul` config for `node_exporter`: