https://www.pistack.xyz/tags/tutorial/Recent content in Tutorial on Pi StackHugoen-usSat, 11 Apr 2026 00:00:00 +0000https://www.pistack.xyz/posts/docker-compose-guide/Sat, 11 Apr 2026 00:00:00 +0000https://www.pistack.xyz/posts/docker-compose-guide/<h2 id="what-is-docker-compose">What is <a href="https://www.docker.com/">docker</a> Compose?</h2> <p>Docker Compose lets you define and run multi-container applications with a single YAML file. Instead of running multiple <code>docker run</code> commands, you define everything in <code>docker-compose.yml</code>.</p> <h2 id="basic-concepts">Basic Concepts</h2> <ul> <li><strong>Service</strong>: A container definition</li> <li><strong>Network</strong>: How services communicate</li> <li><strong>Volume</strong>: Persistent data storage</li> <li><strong>Environment</strong>: Configuration variables</li> </ul> <h2 id="your-first-docker-composeyml">Your First docker-compose.yml</h2> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span><span class="lnt">5 </span><span class="lnt">6 </span><span class="lnt">7 </span><span class="lnt">8 </span><span class="lnt">9 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-yaml" data-lang="yaml"><span class="line"><span class="cl"><span class="nt">version</span><span class="p">:</span><span class="w"> </span><span class="s1">&#39;3.8&#39;</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="nt">s[nginx](https://nginx.org/)es</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">web</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l">nginx:alpine</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">ports</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span>- <span class="s2">&#34;8080:80&#34;</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">volumes</span><span class="p">:</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span>- <span class="l">./html:/usr/share/nginx/html</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="nt">restart</span><span class="p">:</span><span class="w"> </span><span class="l">unless-stopped</span><span class="w"> </span></span></span></code></pre></td></tr></table> </div> </div><p>Run it:</p>