79 lines
2.5 KiB
Ruby
79 lines
2.5 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/v0.18.1.tar.gz"
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sha256 "9ddf187c462f2681ab4516410ada0e6f0f03097db6986686795559ea71a07694"
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bottle do
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cellar :any_skip_relocation
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sha256 "ff7b019285ebd031d6985bb06e4300518c9e07f01536ebb5281e4970818cb8a3" => :mojave
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sha256 "1cce732622dee4be305a42090545dfb493513229bbe9dbbd203432d108b4594c" => :high_sierra
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sha256 "8dff90ccbad967c36b51e27e3c681deb8369f417fae3111765f92f847e3bc30b" => :sierra
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end
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depends_on "go" => :build
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def install
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ENV["GOPATH"] = buildpath
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(buildpath/"src/github.com/prometheus/node_exporter").install buildpath.children
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cd "src/github.com/prometheus/node_exporter" do
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system "go", "build", "-o", bin/"node_exporter", "-ldflags",
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"-X github.com/prometheus/node_exporter/vendor/github.com/prometheus/common/version.Version=#{version}",
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"github.com/prometheus/node_exporter"
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prefix.install_metafiles
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end
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end
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def caveats; <<~EOS
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When used with `brew services`, node_exporter's configuration is stored as command line flags in
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#{etc}/node_exporter.args
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Example configuration:
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echo --web.listen-address :9101 > #{etc}/node_exporter.args
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For the full list of options, execute
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node_exporter -h
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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; <<~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>sh</string>
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<string>-c</string>
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<string>#{opt_bin}/node_exporter $(< #{etc}/node_exporter.args)</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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begin
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pid = 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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ensure
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Process.kill("SIGINT", pid)
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Process.wait(pid)
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end
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end
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end
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