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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1 class="postHeaderTitle">Disk Clean-Up</h1></header><article><div><span><p><br/></p>
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<p>Docker uses the disk in different ways:</p>
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<h2><a class="anchor" aria-hidden="true" id="docker-images"></a><a href="#docker-images" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Docker Images</h2>
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<p>Saving your images: images are compressed files with your built source-code that you deployed to the server. Every time you deploy a new version of your code, Docker builds a new image for the new version and keeps the old image by default. If you want to clean up all "unused" images on your server, run</p>
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<pre><code class="hljs">docker container prune <span class="hljs-comment">--force</span>
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docker image prune <span class="hljs-comment">--all</span>
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</code></pre>
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<p>Important Note: Use this approach only if you have a Docker registry set up (local or remote). This is due to an existing bug in Docker, see <a href="https://github.com/githubsaturn/captainduckduck/issues/180">here</a> for more details on the problem and also see the related <a href="https://github.com/moby/moby/issues/36295">Docker Issue</a></p>
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<h2><a class="anchor" aria-hidden="true" id="docker-volumes"></a><a href="#docker-volumes" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Docker Volumes</h2>
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<p>Volumes, aka "Persistent Directories". When you create an app with persistent data, like a database, you will assign it a persistent directory. When you change the persistent directory, or when you delete your app, you don't need the volumes anymore. Cleaning up orphaned volumes are tricky. If you have a useful volume for an app that is "currently" crashing and not-running, that volume is considered as "orphaned" by Docker :( So, to safely clean up orphaned volumes, first, check to see if all your services are running by:</p>
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<pre><code class="hljs">docker<span class="hljs-built_in"> service </span>ls
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</code></pre>
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<p>Under REPLICAS, you should see <code>1/1</code>, <code>2/2</code> and etc. If you see a service that is not running, then do not proceed! Otherwise, go head and clean-up orphaned volumes by:</p>
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<pre><code class="hljs">docker <span class="hljs-keyword">volume</span><span class="bash"> prune
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</span></code></pre>
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<p>Alternatively, you can first list all volumes, and delete only the ones that you don't want:</p>
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<pre><code class="hljs">docker <span class="hljs-keyword">volume</span><span class="bash"> ls <span class="hljs-comment"># lists all volumes</span>
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</span>docker <span class="hljs-keyword">volume</span><span class="bash"> rm volume-name-goes-here <span class="hljs-comment"># removes a specific volume</span>
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</span></code></pre>
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</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/server-purchase.html"><span class="arrow-prev">← </span><span>Server Purchase</span></a><a class="docs-next button" href="/docs/firewall.html"><span>Firewall & Port Forwarding</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#docker-images">Docker Images</a></li><li><a href="#docker-volumes">Docker Volumes</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/captainduckduck.png" alt="CaptainDuckDuck" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/get-started.html">Getting Started</a></div><div><h5>Community</h5><a href="https://twitter.com/search?vertical=default&q=captainduckduck&src=typd" target="_blank" rel="noreferrer noopener">Twitter</a><a href="https://join.slack.com/t/captainduckduck/shared_invite/enQtNDEwMjc3MjcxNjUzLWQ4YjljN2JiMGU5Nzk5NjcwMDEzNDNiMTNkOTVhNTA4YTYwOThkNDkyMTlkMDFhMzAzOTA5YjcwY2E4NWRkYzk" target="_blank" rel="noreferrer noopener">Slack Group</a></div><div><h5>More</h5><a href="https://github.com/githubsaturn/captainduckduck" target="_blank">GitHub</a><a class="github-button" href="https://github.com/githubsaturn/captainduckduck" data-icon="octicon-star" data-count-href="/githubsaturn/captainduckduck/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2019 githubsaturn</section><script async="" src="https://www.googletagmanager.com/gtag/js?id=UA-121064489-1"></script><script>
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