77 lines
2.4 KiB
Ruby
77 lines
2.4 KiB
Ruby
class NodeExporter < Formula
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desc "Prometheus exporter for machine metrics"
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homepage "https://prometheus.io/"
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url "https://github.com/prometheus/node_exporter/archive/v1.0.1.tar.gz"
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sha256 "a841bf3e236376840be9e1d8e6c4a38196be6f3957b0982d1c7970a5e416b0ad"
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head "https://github.com/prometheus/node_exporter.git"
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bottle do
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cellar :any_skip_relocation
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sha256 "7b68d39007278906d3a749370131c4ee7026f410350c48de3f65eeb4bd0c9310" => :catalina
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sha256 "1ff2d6c27e863565b9b6415ee406d8f2585366c855f7ff9d64577043dec78b7e" => :mojave
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sha256 "3d902e39d3d2be664928596a6a1af176af4a73194d3714341c6e365be3894d86" => :high_sierra
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end
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depends_on "go" => :build
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def install
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ldflags = %W[
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-X github.com/prometheus/common/version.Version=#{version}
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-X github.com/prometheus/common/version.BuildUser=Homebrew
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]
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system "go", "build", "-ldflags", ldflags.join(" "), "-trimpath",
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"-o", bin/"node_exporter"
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prefix.install_metafiles
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touch etc/"node_exporter.args"
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(bin/"node_exporter_brew_services").write <<~EOS
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#!/bin/bash
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exec #{bin}/node_exporter $(<#{etc}/node_exporter.args)
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EOS
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end
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def caveats
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<<~EOS
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When run from `brew services`, `node_exporter` is run from
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`node_exporter_brew_services` and uses the flags in:
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#{etc}/node_exporter.args
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EOS
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end
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plist_options :manual => "node_exporter"
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def plist
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<<~EOS
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>Label</key>
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<string>#{plist_name}</string>
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<key>ProgramArguments</key>
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<array>
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<string>#{opt_bin}/node_exporter_brew_services</string>
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</array>
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<key>RunAtLoad</key>
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<true/>
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<key>KeepAlive</key>
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<false/>
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<key>StandardErrorPath</key>
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<string>#{var}/log/node_exporter.err.log</string>
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<key>StandardOutPath</key>
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<string>#{var}/log/node_exporter.log</string>
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</dict>
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</plist>
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EOS
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end
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test do
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assert_match /node_exporter/, shell_output("#{bin}/node_exporter --version 2>&1")
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fork { exec bin/"node_exporter" }
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sleep 2
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assert_match "# HELP", shell_output("curl -s localhost:9100/metrics")
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end
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end
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