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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25z"/></svg>
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<h1>Metrics</h1>
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<blockquote>
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<p><strong>⚠️ Experimental feature</strong></p>
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<p>This feature was added in v1.0.4 and is still considered experimental.
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If you notice any strange behavior, please raise a ticket in the repository issues.</p>
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</blockquote>
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<p>Metrics can be used to track how Watchtower behaves over time.</p>
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<p>To use this feature, you have to set an <a href="../arguments/#http-api-token">API token</a> and <a href="../arguments/#http-api-metrics">enable the metrics API</a>,
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as well as creating a port mapping for your container for port <code>8080</code>.</p>
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<h2 id="available_metrics">Available Metrics<a class="headerlink" href="#available_metrics" title="Permanent link">¶</a></h2>
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<table>
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<thead>
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<tr>
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<th>Name</th>
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<th>Type</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>watchtower_containers_scanned</code></td>
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<td>Gauge</td>
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<td>Number of containers scanned for changes by watchtower during the last scan</td>
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</tr>
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<tr>
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<td><code>watchtower_containers_updated</code></td>
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<td>Gauge</td>
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<td>Number of containers updated by watchtower during the last scan</td>
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</tr>
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<tr>
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<td><code>watchtower_containers_failed</code></td>
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<td>Gauge</td>
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<td>Number of containers where update failed during the last scan</td>
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</tr>
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<tr>
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<td><code>watchtower_scans_total</code></td>
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<td>Counter</td>
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<td>Number of scans since the watchtower started</td>
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</tr>
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<tr>
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<td><code>watchtower_scans_skipped</code></td>
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<td>Counter</td>
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<td>Number of skipped scans since watchtower started</td>
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</tr>
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</tbody>
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</table>
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<h2 id="demo">Demo<a class="headerlink" href="#demo" title="Permanent link">¶</a></h2>
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<p>The repository contains a demo with prometheus and grafana, available through <code>docker-compose.yml</code>. This demo
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