/tags/s3/Recent content in S3 on CVETech — Tech NotesHugofr-frSat, 26 Sep 2026 09:00:00 +0200/terraform-state-s3-lockfile/Sat, 26 Sep 2026 09:00:00 +0200/terraform-state-s3-lockfile/<p>Pendant des années, verrouiller un état Terraform sur S3 imposait une table DynamoDB à côté du bucket. Depuis Terraform 1.11, le backend S3 sait poser son verrou directement dans le bucket, grâce aux écritures conditionnelles d’S3.</p> <h2 id="la-configuration">La configuration</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-hcl" data-lang="hcl"><span class="line"><span class="cl"><span class="k">terraform</span> { </span></span><span class="line"><span class="cl"><span class="n"> required_version</span> <span class="o">=</span><span class="n"> &#34;&gt;</span><span class="o">=</span> <span class="m">1</span><span class="p">.</span><span class="m">11</span><span class="p">.</span><span class="m">0</span><span class="err">&#34;</span> </span></span><span class="line"><span class="cl"> <span class="k">backend</span> <span class="s2">&#34;s3&#34;</span> { </span></span><span class="line"><span class="cl"><span class="n"> bucket</span> <span class="o">=</span> <span class="s2">&#34;acme-tfstate-123456789012&#34;</span> </span></span><span class="line"><span class="cl"><span class="n"> key</span> <span class="o">=</span> <span class="s2">&#34;production-main-blog.tfstate&#34;</span> </span></span><span class="line"><span class="cl"><span class="n"> region</span> <span class="o">=</span> <span class="s2">&#34;eu-west-3&#34;</span> </span></span><span class="line"><span class="cl"><span class="n"> encrypt</span> <span class="o">=</span> <span class="kt">true</span> </span></span><span class="line"><span class="cl"><span class="n"> use_lockfile</span> <span class="o">=</span> <span class="kt">true</span> </span></span><span class="line"><span class="cl"> } </span></span><span class="line"><span class="cl">} </span></span></code></pre></div><p>Pendant une opération, Terraform crée un objet <code>&lt;key&gt;.tflock</code> à côté de l’état et le supprime à la fin.</p>