ec1e11a2a7
A new prog is added to install the node_exporter on VmHosts.
A flag is also added to make sure the application will serve the
metrics on localhost instead of all network interfaces.
For the VmHosts which are already setup and do not have the app
installed we can create this strand:
Strand.create(prog: "SetupNodeExporter", label: "start",
stack: [{subject_id: vm_host.id}])
50 lines
1.2 KiB
Ruby
Executable File
50 lines
1.2 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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# frozen_string_literal: true
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require_relative "../../common/lib/util"
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require_relative "../../common/lib/arch"
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require "fileutils"
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unless (version = ARGV.shift)
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fail "No version provided"
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end
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file_name = "node_exporter-#{version}.linux-#{Arch.render(x64: "amd64", arm64: "arm64")}"
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url = "https://github.com/prometheus/node_exporter/releases/download/v#{version}/#{file_name}.tar.gz"
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r "wget -q \"#{url}\""
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r "tar xvfz #{file_name}.tar.gz"
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r "sudo mv #{file_name}/node_exporter /usr/local/bin/"
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r "sudo rm -rf #{file_name}*"
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safe_write_to_file("/etc/systemd/system/node_exporter.service", <<NODEEXPORTERCONFIG)
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[Unit]
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Description=Prometheus Node Exporter
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Wants=network-online.target
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After=network-online.target
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[Service]
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NoNewPrivileges=yes
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PrivateTmp=yes
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ProtectSystem=strict
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ProtectHome=read-only
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ProtectKernelModules=yes
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ProtectKernelTunables=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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MemoryDenyWriteExecute=yes
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LockPersonality=yes
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Type=simple
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ExecStart=/usr/local/bin/node_exporter --web.listen-address=127.0.0.1:9100
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Restart=always
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User=nobody
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Group=nogroup
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[Install]
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WantedBy=multi-user.target
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NODEEXPORTERCONFIG
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r "sudo systemctl daemon-reload"
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r "sudo systemctl enable node_exporter"
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r "sudo systemctl start node_exporter"
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