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<p>Consider emulating Docker CLI with Podman to migrate transparently to Podman.</p>
<ul>
<li>Continue using familiar Docker commands.</li>
<li>Take advantage of the benefits of Podman on macOS.</li>
<li>Your tools, such as <a href="https://maven.apache.org/" target="_blank" rel="noopener noreferrer">Maven</a> or <a href="https://www.testcontainers.org/" target="_blank" rel="noopener noreferrer">Testcontainers</a>, communicate with Podman without reconfiguration.</li>
</ul>
<h4 class="anchor anchorWithStickyNavbar_JmGV" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h4>
<ul>
<li>Podman</li>
</ul>
<h4 class="anchor anchorWithStickyNavbar_JmGV" id="procedure">Procedure<a href="#procedure" class="hash-link" aria-label="Direct link to Procedure" title="Direct link to Procedure"></a></h4>
<ol>
<li>
<p>Create a <code>/usr/local/bin/docker</code> script:</p>
<div class="language-shell codeBlockContainer_mQmQ theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_D5yF"><pre tabindex="0" class="prism-code language-shell codeBlock_RMoD thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_AclH"><span class="token-line" style="color:#F8F8F2"><span class="token shebang important">#!/usr/bin/sh</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">[</span><span class="token plain"> </span><span class="token parameter variable" style="color:rgb(189, 147, 249);font-style:italic">-e</span><span class="token plain"> /etc/containers/nodocker </span><span class="token punctuation" style="color:rgb(248, 248, 242)">]</span><span class="token plain"> </span><span class="token operator">||</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">\</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">echo</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&quot;Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.&quot;</span><span class="token plain"> </span><span class="token operator">&gt;</span><span class="token file-descriptor important">&amp;2</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token builtin class-name" style="color:rgb(189, 147, 249)">exec</span><span class="token plain"> </span><span class="token function" style="color:rgb(80, 250, 123)">podman</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">&quot;</span><span class="token string variable" style="color:rgb(189, 147, 249);font-style:italic">$@</span><span class="token string" style="color:rgb(255, 121, 198)">&quot;</span><br></span></code></pre><div class="buttonGroup_aaMX"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_z5j7" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_FoOz"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_L0B6"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
</li>
<li>
<p>(Optional) Create an empty <code>/etc/containers/nodocker</code> file to avoid the <code>Emulate Docker CLI using podman.</code> message when running the script.</p>
<div class="language-shell-session codeBlockContainer_mQmQ theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_D5yF"><pre tabindex="0" class="prism-code language-shell-session codeBlock_RMoD thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_AclH"><span class="token-line" style="color:#F8F8F2"><span class="token command shell-symbol important">#</span><span class="token command"> </span><span class="token command bash language-bash">touch /etc/containers/nodocker</span><br></span></code></pre><div class="buttonGroup_aaMX"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_z5j7" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_FoOz"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_L0B6"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
</li>
<li>
<p>Make the script executable:</p>
<div class="language-shell-session codeBlockContainer_mQmQ theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_D5yF"><pre tabindex="0" class="prism-code language-shell-session codeBlock_RMoD thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_AclH"><span class="token-line" style="color:#F8F8F2"><span class="token command shell-symbol important">#</span><span class="token command"> </span><span class="token command bash language-bash">chmod +x /usr/local/bin/docker</span><br></span></code></pre><div class="buttonGroup_aaMX"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_z5j7" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_FoOz"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_L0B6"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
</li>
</ol>
<h4 class="anchor anchorWithStickyNavbar_JmGV" id="verification">Verification<a href="#verification" class="hash-link" aria-label="Direct link to Verification" title="Direct link to Verification"></a></h4>
<ul>
<li>
<p>Use the <code>docker</code> script to run commands.
Example:</p>
<div class="language-shell-session codeBlockContainer_mQmQ theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_D5yF"><pre tabindex="0" class="prism-code language-shell-session codeBlock_RMoD thin-scrollbar" style="color:#F8F8F2;background-color:#282A36"><code class="codeBlockLines_AclH"><span class="token-line" style="color:#F8F8F2"><span class="token command shell-symbol important">$</span><span class="token command"> </span><span class="token command bash language-bash">docker run -it docker.io/hello-world</span><br></span></code></pre><div class="buttonGroup_aaMX"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_z5j7" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_FoOz"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_L0B6"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div>
</li>
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