<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>prometheus on Astroicers Blog</title><link>https://astroicers.link/tags/prometheus.html</link><description>Recent content in prometheus on Astroicers Blog</description><generator>Hugo -- gohugo.io</generator><language>en</language><lastBuildDate>Tue, 07 Apr 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://astroicers.link/tags/prometheus/index.xml" rel="self" type="application/rss+xml"/><item><title>Prometheus 監控系統完整指南</title><link>https://astroicers.link/p/prometheus-%E7%9B%A3%E6%8E%A7%E7%B3%BB%E7%B5%B1%E5%AE%8C%E6%95%B4%E6%8C%87%E5%8D%97.html</link><pubDate>Tue, 07 Apr 2026 00:00:00 +0000</pubDate><guid>https://astroicers.link/p/prometheus-%E7%9B%A3%E6%8E%A7%E7%B3%BB%E7%B5%B1%E5%AE%8C%E6%95%B4%E6%8C%87%E5%8D%97.html</guid><description>&lt;h2 id="專案簡介">專案簡介&lt;/h2>
&lt;p>&lt;a class="link" href="https://github.com/prometheus/prometheus" target="_blank" rel="noopener"
>Prometheus&lt;/a> 是 CNCF 畢業專案，為雲原生環境設計的監控和告警系統。採用 Pull 模式收集指標，具備強大的查詢語言 PromQL。&lt;/p>
&lt;p>&lt;strong>GitHub Stars&lt;/strong>: 62K+&lt;/p>
&lt;h2 id="核心概念">核心概念&lt;/h2>
&lt;ul>
&lt;li>&lt;strong>Metrics&lt;/strong> - 時間序列資料&lt;/li>
&lt;li>&lt;strong>Labels&lt;/strong> - 維度標籤&lt;/li>
&lt;li>&lt;strong>PromQL&lt;/strong> - 查詢語言&lt;/li>
&lt;li>&lt;strong>Alertmanager&lt;/strong> - 告警管理&lt;/li>
&lt;li>&lt;strong>Service Discovery&lt;/strong> - 自動發現目標&lt;/li>
&lt;/ul>
&lt;h2 id="快速部署">快速部署&lt;/h2>
&lt;h3 id="docker">Docker&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-bash" data-lang="bash">&lt;span class="line">&lt;span class="cl">docker run -d &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> -p 9090:9090 &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> -v ./prometheus.yml:/etc/prometheus/prometheus.yml &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> --name prometheus &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> prom/prometheus
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="基本設定">基本設定&lt;/h3>
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># prometheus.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">global&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">scrape_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">15s&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">evaluation_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">15s&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">alerting&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">alertmanagers&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">static_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">targets&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">alertmanager:9093&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">rule_files&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="s2">&amp;#34;alerts/*.yml&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">scrape_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;prometheus&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">static_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">targets&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s1">&amp;#39;localhost:9090&amp;#39;&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;node&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">static_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">targets&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s1">&amp;#39;node-exporter:9100&amp;#39;&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="指標類型">指標類型&lt;/h2>
&lt;h3 id="counter計數器">Counter（計數器）&lt;/h3>
&lt;p>只會增加，用於累計值：&lt;/p>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 請求總數&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 請求率&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="gauge量表">Gauge（量表）&lt;/h3>
&lt;p>可增可減，用於當前值：&lt;/p>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 當前溫度&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">temperature_celsius&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 記憶體使用量&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">node_memory_MemAvailable_bytes&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="histogram直方圖">Histogram（直方圖）&lt;/h3>
&lt;p>用於分佈統計：&lt;/p>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># P95 延遲&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">histogram_quantile&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="mf">0.95&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_request_duration_seconds_bucket&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 平均延遲&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_request_duration_seconds_sum&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">/&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_request_duration_seconds_count&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
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&lt;/div>
&lt;/div>&lt;h3 id="summary摘要">Summary（摘要）&lt;/h3>
&lt;p>客戶端計算分位數：&lt;/p>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="nv">http_request_duration_seconds&lt;/span>&lt;span class="p">{&lt;/span>&lt;span class="nl">quantile&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="p">&amp;#34;&lt;/span>&lt;span class="s">0.95&lt;/span>&lt;span class="p">&amp;#34;}&lt;/span>&lt;span class="w">
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&lt;/div>
&lt;/div>&lt;h2 id="promql-查詢">PromQL 查詢&lt;/h2>
&lt;h3 id="基本查詢">基本查詢&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 選擇指標&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 標籤過濾&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">{&lt;/span>&lt;span class="nl">method&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="p">&amp;#34;&lt;/span>&lt;span class="s">POST&lt;/span>&lt;span class="p">&amp;#34;}&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 正則匹配&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">{&lt;/span>&lt;span class="nl">method&lt;/span>&lt;span class="o">=~&lt;/span>&lt;span class="p">&amp;#34;&lt;/span>&lt;span class="s">GET|POST&lt;/span>&lt;span class="p">&amp;#34;}&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 排除標籤&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">{&lt;/span>&lt;span class="nl">method&lt;/span>&lt;span class="o">!=&lt;/span>&lt;span class="p">&amp;#34;&lt;/span>&lt;span class="s">DELETE&lt;/span>&lt;span class="p">&amp;#34;}&lt;/span>&lt;span class="w">
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&lt;/div>
&lt;/div>&lt;h3 id="範圍查詢">範圍查詢&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 過去 5 分鐘&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="w">
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&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 偏移&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">offset&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s">1h&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="聚合函數">聚合函數&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
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&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 加總&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 按標籤加總&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">by&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">method&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 不包含標籤&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">without&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">instance&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 平均&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">avg&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">node_cpu_seconds_total&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 最大/最小&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">max&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">node_memory_MemTotal_bytes&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">min&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">node_memory_MemAvailable_bytes&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 計數&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">count&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">up&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">==&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="mi">1&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># Top K&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">topk&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="mi">5&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="常用函數">常用函數&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 變化率&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">irate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 增量&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">increase&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">1h&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 直方圖分位數&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">histogram_quantile&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="mf">0.99&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_request_duration_bucket&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">by&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">le&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 時間函數&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">time&lt;/span>&lt;span class="o">()&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">timestamp&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">up&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 數學函數&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">abs&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">changes&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">ceil&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">value&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">floor&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">value&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">round&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">value&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="mf">0.1&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="告警規則">告警規則&lt;/h2>
&lt;h3 id="告警設定">告警設定&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># alerts/node.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">groups&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">node&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">rules&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">alert&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">HighCPUUsage&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">expr&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="m">100&lt;/span>&lt;span class="w"> &lt;/span>- &lt;span class="l">(avg by(instance) (rate(node_cpu_seconds_total{mode=&amp;#34;idle&amp;#34;}[5m])) * 100) &amp;gt; 80&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">for&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">warning&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">annotations&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">summary&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s2">&amp;#34;High CPU usage on {{ $labels.instance }}&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">description&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s2">&amp;#34;CPU usage is {{ $value | printf \&amp;#34;%.2f\&amp;#34; }}%&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">alert&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">HighMemoryUsage&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">expr&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">(1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes)) * 100 &amp;gt; 85&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">for&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">warning&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">annotations&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">summary&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s2">&amp;#34;High memory usage on {{ $labels.instance }}&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">alert&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">DiskSpaceLow&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">expr&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">(node_filesystem_avail_bytes / node_filesystem_size_bytes) * 100 &amp;lt; 10&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">for&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">critical&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">annotations&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">summary&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s2">&amp;#34;Low disk space on {{ $labels.instance }}&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="alertmanager-設定">Alertmanager 設定&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># alertmanager.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">global&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">smtp_smarthost&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;smtp.example.com:587&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">smtp_from&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;alertmanager@example.com&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">route&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">receiver&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;default&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">group_by&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s1">&amp;#39;alertname&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;severity&amp;#39;&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">group_wait&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">30s&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">group_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">repeat_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">4h&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">routes&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">match&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">critical&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">receiver&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;pagerduty&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">match&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">warning&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">receiver&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;slack&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">receivers&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;default&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">email_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">to&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;team@example.com&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;slack&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">slack_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">api_url&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;https://hooks.slack.com/services/xxx&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">channel&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;#alerts&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;pagerduty&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">pagerduty_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">service_key&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;xxx&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="服務發現">服務發現&lt;/h2>
&lt;h3 id="kubernetes">Kubernetes&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
&lt;/span>&lt;span class="lnt"> 2
&lt;/span>&lt;span class="lnt"> 3
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&lt;/span>&lt;span class="lnt">11
&lt;/span>&lt;span class="lnt">12
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="nt">scrape_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;kubernetes-pods&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">kubernetes_sd_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">role&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">pod&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">relabel_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">source_labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="l">__meta_kubernetes_pod_annotation_prometheus_io_scrape]&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">action&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">keep&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">regex&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="kc">true&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">source_labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="l">__meta_kubernetes_pod_annotation_prometheus_io_path]&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">action&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">replace&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">target_label&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">__metrics_path__&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">regex&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">(.+)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="docker-1">Docker&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;span class="lnt">5
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="nt">scrape_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;docker&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">dockerswarm_sd_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">host&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">unix:///var/run/docker.sock&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">role&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">tasks&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="file-sd">File SD&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;span class="lnt">5
&lt;/span>&lt;span class="lnt">6
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="nt">scrape_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;file-sd&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">file_sd_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">files&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="s1">&amp;#39;/etc/prometheus/targets/*.json&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">refresh_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
&lt;/span>&lt;span class="lnt"> 2
&lt;/span>&lt;span class="lnt"> 3
&lt;/span>&lt;span class="lnt"> 4
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&lt;/span>&lt;span class="lnt"> 9
&lt;/span>&lt;span class="lnt">10
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-json" data-lang="json">&lt;span class="line">&lt;span class="cl">&lt;span class="c1">// targets/web.json
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="c1">&lt;/span>&lt;span class="p">[&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="p">{&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="nt">&amp;#34;targets&amp;#34;&lt;/span>&lt;span class="p">:&lt;/span> &lt;span class="p">[&lt;/span>&lt;span class="s2">&amp;#34;web1:9100&amp;#34;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="s2">&amp;#34;web2:9100&amp;#34;&lt;/span>&lt;span class="p">],&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="nt">&amp;#34;labels&amp;#34;&lt;/span>&lt;span class="p">:&lt;/span> &lt;span class="p">{&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="nt">&amp;#34;env&amp;#34;&lt;/span>&lt;span class="p">:&lt;/span> &lt;span class="s2">&amp;#34;production&amp;#34;&lt;/span>&lt;span class="p">,&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="nt">&amp;#34;team&amp;#34;&lt;/span>&lt;span class="p">:&lt;/span> &lt;span class="s2">&amp;#34;web&amp;#34;&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="p">}&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="p">}&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="p">]&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="exporter-生態">Exporter 生態&lt;/h2>
&lt;h3 id="node-exporter">Node Exporter&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;span class="lnt">5
&lt;/span>&lt;span class="lnt">6
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-bash" data-lang="bash">&lt;span class="line">&lt;span class="cl">docker run -d &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> --net&lt;span class="o">=&lt;/span>&lt;span class="s2">&amp;#34;host&amp;#34;&lt;/span> &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> --pid&lt;span class="o">=&lt;/span>&lt;span class="s2">&amp;#34;host&amp;#34;&lt;/span> &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> -v &lt;span class="s2">&amp;#34;/:/host:ro,rslave&amp;#34;&lt;/span> &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> prom/node-exporter &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> --path.rootfs&lt;span class="o">=&lt;/span>/host
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="自訂指標python">自訂指標（Python）&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-python" data-lang="python">&lt;span class="line">&lt;span class="cl">&lt;span class="kn">from&lt;/span> &lt;span class="nn">prometheus_client&lt;/span> &lt;span class="kn">import&lt;/span> &lt;span class="n">start_http_server&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="n">Counter&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="n">Gauge&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="n">Histogram&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 定義指標&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">requests_total&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="n">Counter&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="s1">&amp;#39;http_requests_total&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="s1">&amp;#39;Total HTTP requests&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="p">[&lt;/span>&lt;span class="s1">&amp;#39;method&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="s1">&amp;#39;endpoint&amp;#39;&lt;/span>&lt;span class="p">])&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">temperature&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="n">Gauge&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="s1">&amp;#39;temperature_celsius&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="s1">&amp;#39;Current temperature&amp;#39;&lt;/span>&lt;span class="p">)&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">request_duration&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="n">Histogram&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="s1">&amp;#39;http_request_duration_seconds&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="s1">&amp;#39;Request duration&amp;#39;&lt;/span>&lt;span class="p">)&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 使用指標&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">requests_total&lt;/span>&lt;span class="o">.&lt;/span>&lt;span class="n">labels&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="n">method&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;GET&amp;#39;&lt;/span>&lt;span class="p">,&lt;/span> &lt;span class="n">endpoint&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;/api&amp;#39;&lt;/span>&lt;span class="p">)&lt;/span>&lt;span class="o">.&lt;/span>&lt;span class="n">inc&lt;/span>&lt;span class="p">()&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">temperature&lt;/span>&lt;span class="o">.&lt;/span>&lt;span class="n">set&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="mf">23.5&lt;/span>&lt;span class="p">)&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">with&lt;/span> &lt;span class="n">request_duration&lt;/span>&lt;span class="o">.&lt;/span>&lt;span class="n">time&lt;/span>&lt;span class="p">():&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="c1"># 處理請求&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="k">pass&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># 啟動 HTTP 伺服器&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n">start_http_server&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="mi">8000&lt;/span>&lt;span class="p">)&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="高可用部署">高可用部署&lt;/h2>
&lt;h3 id="thanos">Thanos&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># Prometheus sidecar&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">prometheus&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">command&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- --&lt;span class="l">storage.tsdb.max-block-duration=2h&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- --&lt;span class="l">storage.tsdb.min-block-duration=2h&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">thanos-sidecar&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">image&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">quay.io/thanos/thanos:latest&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">args&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">sidecar&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- --&lt;span class="l">prometheus.url=http://prometheus:9090&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- --&lt;span class="l">objstore.config-file=/etc/thanos/bucket.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="相關連結">相關連結&lt;/h2>
&lt;ul>
&lt;li>&lt;a class="link" href="https://github.com/prometheus/prometheus" target="_blank" rel="noopener"
>GitHub Repository&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://prometheus.io/docs/" target="_blank" rel="noopener"
>官方文件&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://promlabs.com/promql-cheat-sheet/" target="_blank" rel="noopener"
>PromQL Cheat Sheet&lt;/a>&lt;/li>
&lt;/ul>
&lt;h2 id="延伸閱讀">延伸閱讀&lt;/h2>
&lt;ul>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/grafana-observability/" >Grafana 可觀測性平台&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/kubernetes-monitoring/" >Kubernetes 監控方案&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/aws-cloudwatch-logs/" >AWS CloudWatch 監控&lt;/a>&lt;/li>
&lt;/ul></description></item><item><title>Grafana 可觀測性平台完整指南</title><link>https://astroicers.link/p/grafana-%E5%8F%AF%E8%A7%80%E6%B8%AC%E6%80%A7%E5%B9%B3%E5%8F%B0%E5%AE%8C%E6%95%B4%E6%8C%87%E5%8D%97.html</link><pubDate>Fri, 03 Apr 2026 00:00:00 +0000</pubDate><guid>https://astroicers.link/p/grafana-%E5%8F%AF%E8%A7%80%E6%B8%AC%E6%80%A7%E5%B9%B3%E5%8F%B0%E5%AE%8C%E6%95%B4%E6%8C%87%E5%8D%97.html</guid><description>&lt;h2 id="專案簡介">專案簡介&lt;/h2>
&lt;p>&lt;a class="link" href="https://github.com/grafana/grafana" target="_blank" rel="noopener"
>Grafana&lt;/a> 是最受歡迎的開源可觀測性平台，提供美觀的儀表板來視覺化監控資料。支援 Prometheus、InfluxDB、Elasticsearch 等數十種資料源。&lt;/p>
&lt;p>&lt;strong>GitHub Stars&lt;/strong>: 72K+&lt;/p>
&lt;h2 id="主要功能">主要功能&lt;/h2>
&lt;ul>
&lt;li>&lt;strong>儀表板&lt;/strong> - 豐富的視覺化元件&lt;/li>
&lt;li>&lt;strong>多資料源&lt;/strong> - 整合 100+ 資料來源&lt;/li>
&lt;li>&lt;strong>告警系統&lt;/strong> - 多管道通知&lt;/li>
&lt;li>&lt;strong>日誌查詢&lt;/strong> - Loki 整合&lt;/li>
&lt;li>&lt;strong>分散式追蹤&lt;/strong> - Tempo 整合&lt;/li>
&lt;/ul>
&lt;h2 id="快速部署">快速部署&lt;/h2>
&lt;h3 id="docker">Docker&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
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&lt;/span>&lt;span class="lnt">5
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-bash" data-lang="bash">&lt;span class="line">&lt;span class="cl">docker run -d &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> -p 3000:3000 &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> --name grafana &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> -v grafana-storage:/var/lib/grafana &lt;span class="se">\
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="se">&lt;/span> grafana/grafana-oss
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="docker-compose完整堆疊">Docker Compose（完整堆疊）&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="nt">version&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;3.8&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">services&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">grafana&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">image&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">grafana/grafana-oss&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">ports&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="s2">&amp;#34;3000:3000&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">environment&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">GF_SECURITY_ADMIN_PASSWORD=admin&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">volumes&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">grafana-data:/var/lib/grafana&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">prometheus&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">image&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">prom/prometheus&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">ports&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="s2">&amp;#34;9090:9090&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">volumes&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">./prometheus.yml:/etc/prometheus/prometheus.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">loki&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">image&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">grafana/loki&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">ports&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="s2">&amp;#34;3100:3100&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">promtail&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">image&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">grafana/promtail&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">volumes&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">/var/log:/var/log&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">./promtail-config.yml:/etc/promtail/config.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">volumes&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">grafana-data&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;p>訪問 &lt;code>http://localhost:3000&lt;/code>（admin/admin）&lt;/p>
&lt;h2 id="資料源設定">資料源設定&lt;/h2>
&lt;h3 id="prometheus">Prometheus&lt;/h3>
&lt;ol>
&lt;li>Configuration → Data Sources → Add&lt;/li>
&lt;li>選擇 Prometheus&lt;/li>
&lt;li>URL: &lt;code>http://prometheus:9090&lt;/code>&lt;/li>
&lt;li>Save &amp;amp; Test&lt;/li>
&lt;/ol>
&lt;h3 id="loki日誌">Loki（日誌）&lt;/h3>
&lt;ol>
&lt;li>Configuration → Data Sources → Add&lt;/li>
&lt;li>選擇 Loki&lt;/li>
&lt;li>URL: &lt;code>http://loki:3100&lt;/code>&lt;/li>
&lt;/ol>
&lt;h3 id="mysql">MySQL&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># datasources/mysql.yaml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">apiVersion&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="m">1&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">datasources&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">MySQL&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">type&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">mysql&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">url&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">mysql:3306&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">database&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">mydb&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">user&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">grafana&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">secureJsonData&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">password&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">secret&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="建立儀表板">建立儀表板&lt;/h2>
&lt;h3 id="panel-類型">Panel 類型&lt;/h3>
&lt;table>
&lt;thead>
&lt;tr>
&lt;th>類型&lt;/th>
&lt;th>用途&lt;/th>
&lt;/tr>
&lt;/thead>
&lt;tbody>
&lt;tr>
&lt;td>Time series&lt;/td>
&lt;td>時間序列資料&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Stat&lt;/td>
&lt;td>單一數值&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Gauge&lt;/td>
&lt;td>量表顯示&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Bar chart&lt;/td>
&lt;td>長條圖&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Table&lt;/td>
&lt;td>表格資料&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Heatmap&lt;/td>
&lt;td>熱力圖&lt;/td>
&lt;/tr>
&lt;tr>
&lt;td>Logs&lt;/td>
&lt;td>日誌顯示&lt;/td>
&lt;/tr>
&lt;/tbody>
&lt;/table>
&lt;h3 id="promql-範例">PromQL 範例&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
&lt;/span>&lt;span class="lnt"> 2
&lt;/span>&lt;span class="lnt"> 3
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-promql" data-lang="promql">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># CPU 使用率&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="mi">100&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">-&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="k">avg&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">by&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">instance&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">node_cpu_seconds_total&lt;/span>&lt;span class="p">{&lt;/span>&lt;span class="nl">mode&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="p">&amp;#34;&lt;/span>&lt;span class="s">idle&lt;/span>&lt;span class="p">&amp;#34;}[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">*&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="mi">100&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># 記憶體使用率&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="mi">1&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">-&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">node_memory_MemAvailable_bytes&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">/&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="nv">node_memory_MemTotal_bytes&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">*&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="mi">100&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># HTTP 請求率&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_requests_total&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">by&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">status&lt;/span>&lt;span class="o">)&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="c1"># P95 延遲&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="kr">histogram_quantile&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="mf">0.95&lt;/span>&lt;span class="p">,&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">sum&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="kr">rate&lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">http_request_duration_seconds_bucket&lt;/span>&lt;span class="p">[&lt;/span>&lt;span class="s">5m&lt;/span>&lt;span class="p">]&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">by&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">(&lt;/span>&lt;span class="nv">le&lt;/span>&lt;span class="o">))&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="logql-範例loki">LogQL 範例（Loki）&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;span class="lnt">5
&lt;/span>&lt;span class="lnt">6
&lt;/span>&lt;span class="lnt">7
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-fallback" data-lang="fallback">&lt;span class="line">&lt;span class="cl"># 查詢特定應用日誌
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">{app=&amp;#34;nginx&amp;#34;} |= &amp;#34;error&amp;#34;
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"># JSON 解析
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">{app=&amp;#34;api&amp;#34;} | json | response_code &amp;gt;= 500
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"># 統計錯誤數
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">sum(rate({app=&amp;#34;api&amp;#34;} |= &amp;#34;error&amp;#34; [5m])) by (level)
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="告警設定">告警設定&lt;/h2>
&lt;h3 id="告警規則">告警規則&lt;/h3>
&lt;ol>
&lt;li>Alerting → Alert Rules → Create&lt;/li>
&lt;li>設定條件&lt;/li>
&lt;/ol>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># 範例：CPU 高使用率告警&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">alert&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">HighCPUUsage&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">expr&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="m">100&lt;/span>&lt;span class="w"> &lt;/span>- &lt;span class="l">(avg by(instance) (rate(node_cpu_seconds_total{mode=&amp;#34;idle&amp;#34;}[5m])) * 100) &amp;gt; 80&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">for&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">5m&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">severity&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">warning&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">annotations&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">summary&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s2">&amp;#34;High CPU usage on {{ $labels.instance }}&amp;#34;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="通知管道">通知管道&lt;/h3>
&lt;p>支援多種通知方式：&lt;/p>
&lt;ul>
&lt;li>Email&lt;/li>
&lt;li>Slack&lt;/li>
&lt;li>PagerDuty&lt;/li>
&lt;li>Webhook&lt;/li>
&lt;li>Microsoft Teams&lt;/li>
&lt;li>Discord&lt;/li>
&lt;/ul>
&lt;h3 id="slack-設定">Slack 設定&lt;/h3>
&lt;ol>
&lt;li>Alerting → Contact points → New&lt;/li>
&lt;li>選擇 Slack&lt;/li>
&lt;li>輸入 Webhook URL&lt;/li>
&lt;/ol>
&lt;h2 id="儀表板即程式碼">儀表板即程式碼&lt;/h2>
&lt;h3 id="json-匯出">JSON 匯出&lt;/h3>
&lt;p>Dashboard Settings → JSON Model → Copy&lt;/p>
&lt;h3 id="provisioning">Provisioning&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;span class="lnt">5
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&lt;/span>&lt;span class="lnt">7
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># provisioning/dashboards/default.yaml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">apiVersion&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="m">1&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">providers&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;default&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">folder&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="s1">&amp;#39;&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">type&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">file&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">options&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">path&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">/var/lib/grafana/dashboards&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="terraform">Terraform&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt"> 1
&lt;/span>&lt;span class="lnt"> 2
&lt;/span>&lt;span class="lnt"> 3
&lt;/span>&lt;span class="lnt"> 4
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-hcl" data-lang="hcl">&lt;span class="line">&lt;span class="cl">&lt;span class="k">resource&lt;/span> &lt;span class="s2">&amp;#34;grafana_dashboard&amp;#34; &amp;#34;metrics&amp;#34;&lt;/span> {
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n"> config_json&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="k">file&lt;/span>&lt;span class="p">(&lt;/span>&lt;span class="s2">&amp;#34;dashboard.json&amp;#34;&lt;/span>&lt;span class="p">)&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">}
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">resource&lt;/span> &lt;span class="s2">&amp;#34;grafana_alert_rule&amp;#34; &amp;#34;cpu&amp;#34;&lt;/span> {
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n"> name&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s2">&amp;#34;High CPU&amp;#34;&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n"> folder_id&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="k">grafana_folder&lt;/span>&lt;span class="p">.&lt;/span>&lt;span class="k">alerts&lt;/span>&lt;span class="p">.&lt;/span>&lt;span class="k">id&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> &lt;span class="k">rule_group&lt;/span> {
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n"> name&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s2">&amp;#34;cpu_alerts&amp;#34;&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="n"> interval&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s2">&amp;#34;1m&amp;#34;&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"> }
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">}
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="grafana-loki">Grafana Loki&lt;/h2>
&lt;h3 id="promtail-設定">Promtail 設定&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># promtail-config.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">server&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">http_listen_port&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="m">9080&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">positions&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">filename&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">/tmp/positions.yaml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">clients&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">url&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">http://loki:3100/loki/api/v1/push&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">scrape_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">job_name&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">containers&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">static_configs&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">targets&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="l">localhost&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">labels&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">job&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">containerlogs&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">__path__&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">/var/lib/docker/containers/*/*.log&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">pipeline_stages&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>- &lt;span class="nt">json&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">expressions&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">log&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">log&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">stream&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">stream&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">time&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">time&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="查詢日誌">查詢日誌&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
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&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-fallback" data-lang="fallback">&lt;span class="line">&lt;span class="cl"># 最近錯誤
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">{job=&amp;#34;containerlogs&amp;#34;} |= &amp;#34;error&amp;#34; | limit 100
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl"># 按級別統計
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">sum by (level) (count_over_time({app=&amp;#34;api&amp;#34;}[1h]))
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="效能優化">效能優化&lt;/h2>
&lt;h3 id="資料保留">資料保留&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
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&lt;pre tabindex="0" class="chroma">&lt;code class="language-yaml" data-lang="yaml">&lt;span class="line">&lt;span class="cl">&lt;span class="c"># prometheus.yml&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">global&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">scrape_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">15s&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">evaluation_interval&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">15s&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w">&lt;/span>&lt;span class="nt">storage&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">tsdb&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">retention.time&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">15d&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="w"> &lt;/span>&lt;span class="nt">retention.size&lt;/span>&lt;span class="p">:&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="l">50GB&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="快取設定">快取設定&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
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&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-ini" data-lang="ini">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># grafana.ini&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">[caching]&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">enabled&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">true&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">ttl&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">300&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="安全設定">安全設定&lt;/h2>
&lt;h3 id="認證">認證&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
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&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-ini" data-lang="ini">&lt;span class="line">&lt;span class="cl">&lt;span class="c1"># grafana.ini&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">[auth]&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">disable_login_form&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">false&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">[auth.ldap]&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">enabled&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">true&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">config_file&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">/etc/grafana/ldap.toml&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="k">[auth.generic_oauth]&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">enabled&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">true&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">name&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">Keycloak&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">client_id&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">grafana&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">client_secret&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">secret&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">auth_url&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">https://keycloak/auth&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">token_url&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">https://keycloak/token&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">api_url&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">https://keycloak/userinfo&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h3 id="https">HTTPS&lt;/h3>
&lt;div class="highlight">&lt;div class="chroma">
&lt;table class="lntable">&lt;tr>&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code>&lt;span class="lnt">1
&lt;/span>&lt;span class="lnt">2
&lt;/span>&lt;span class="lnt">3
&lt;/span>&lt;span class="lnt">4
&lt;/span>&lt;/code>&lt;/pre>&lt;/td>
&lt;td class="lntd">
&lt;pre tabindex="0" class="chroma">&lt;code class="language-ini" data-lang="ini">&lt;span class="line">&lt;span class="cl">&lt;span class="k">[server]&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">protocol&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">https&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">cert_file&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">/etc/grafana/cert.pem&lt;/span>
&lt;/span>&lt;/span>&lt;span class="line">&lt;span class="cl">&lt;span class="na">cert_key&lt;/span> &lt;span class="o">=&lt;/span> &lt;span class="s">/etc/grafana/key.pem&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/td>&lt;/tr>&lt;/table>
&lt;/div>
&lt;/div>&lt;h2 id="相關連結">相關連結&lt;/h2>
&lt;ul>
&lt;li>&lt;a class="link" href="https://github.com/grafana/grafana" target="_blank" rel="noopener"
>GitHub Repository&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://grafana.com/docs/" target="_blank" rel="noopener"
>官方文件&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://grafana.com/grafana/dashboards/" target="_blank" rel="noopener"
>儀表板市集&lt;/a>&lt;/li>
&lt;/ul>
&lt;h2 id="延伸閱讀">延伸閱讀&lt;/h2>
&lt;ul>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/prometheus-monitoring/" >Prometheus 監控系統&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/kubernetes-monitoring/" >Kubernetes 監控方案&lt;/a>&lt;/li>
&lt;li>&lt;a class="link" href="https://astroicers.link/p/aws-cloudwatch-logs/" >AWS CloudWatch 日誌&lt;/a>&lt;/li>
&lt;/ul></description></item></channel></rss>