86 lines
2.0 KiB
Ruby
86 lines
2.0 KiB
Ruby
#
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# Cookbook:: kosmos_prometheus
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# Recipe:: node_exporter
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#
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include_recipe "firewall"
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version = node["prometheus"]["node_exporter"]["version"]
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checksum = node["prometheus"]["node_exporter"]["checksum"]
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tarball = "#{Chef::Config[:file_cache_path]}/node_exporter-#{version}.linux-amd64.tar.gz"
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binary_url = "https://github.com/prometheus/node_exporter/releases/download/v#{version}/node_exporter-#{version}.linux-amd64.tar.gz"
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group "node_exporter"
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user "node_exporter" do
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gid "node_exporter"
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system true
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shell "/bin/false"
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home "/nonexistent"
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end
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directory "/var/lib/node_exporter/textfile" do
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owner "node_exporter"
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group "node_exporter"
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mode "0755"
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recursive true
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end
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package %w(tar bzip2)
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remote_file tarball do
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source binary_url
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checksum checksum
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action :create
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notifies :run, "execute[install_node_exporter]", :immediately
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end
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execute "install_node_exporter" do
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command "tar -xzf #{tarball} -C /usr/local/bin --strip-components=1 node_exporter-#{version}.linux-amd64/node_exporter"
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action :nothing
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notifies :restart, "service[node_exporter]", :delayed
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end
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file "/usr/local/bin/node_exporter" do
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owner "root"
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group "root"
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mode "0755"
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notifies :restart, "service[node_exporter]", :delayed
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end
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systemd_unit "node_exporter.service" do
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content({
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Unit: {
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Description: "Prometheus node exporter",
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Documentation: ["https://github.com/prometheus/node_exporter"],
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},
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Service: {
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Type: "simple",
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User: "node_exporter",
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Group: "node_exporter",
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ExecStart: "/usr/local/bin/node_exporter --web.listen-address=:9100 --collector.textfile.directory=/var/lib/node_exporter/textfile",
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Restart: "on-failure",
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RestartSec: "5",
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NoNewPrivileges: "yes",
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ProtectSystem: "full",
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ProtectHome: "yes",
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},
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Install: {
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WantedBy: "multi-user.target",
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},
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})
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triggers_reload true
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action :create
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end
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service "node_exporter" do
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action [:enable, :start]
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end
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firewall_rule "node_exporter" do
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port 9100
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source "10.1.1.0/24"
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protocol :tcp
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command :allow
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end
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