Sync Puppet section slides from master

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

index.html

@@ -270,6 +270,71 @@ output "public_ip" {
     </p>
   </section>
 
+  <!-- ─── SLIDE 25 : Puppet intro ──────────────────────────────────── -->
+  <section>
+    <h2>🐾 <span class="puppet-col">Puppet</span></h2>
+    <p>Your servers are configured. Now keep them that way.</p>
+  </section>
+
+  <!-- ─── SLIDE 26 : Puppet concepts ──────────────────────────────── -->
+  <section>
+    <h2>Pull, not push. Agents, not SSH.</h2>
+    <p>Every 30 minutes, each puppet-agent polls the Puppet Server, compiles a catalog, and enforces it.<br>
+    <em>Drift is corrected automatically — without anyone lifting a finger.</em></p>
+  </section>
+
+  <!-- ─── SLIDE 27 : Puppet code ───────────────────────────────────── -->
+  <section>
+    <p class="filename"># manifests/webserver.pp</p>
+    <pre><code class="language-puppet" data-trim>
+class webserver {
+  package { 'nginx':
+    ensure => installed,
+  }
+
+  file { '/etc/nginx/nginx.conf':
+    ensure  => file,
+    content => template('webserver/nginx.conf.erb'),
+    notify  => Service['nginx'],
+  }
+
+  service { 'nginx':
+    ensure => running,
+    enable => true,
+  }
+}
+    </code></pre>
+  </section>
+
+  <!-- ─── SLIDE 28 : Puppet drift detection ───────────────────────── -->
+  <section>
+    <h2>Someone SSH'd in and changed something.</h2>
+    <p>Puppet noticed. Puppet fixed it.<br>
+    <em>Continuous compliance — not just at deploy time. Every. 30. Minutes.</em><br>
+    No more gardening your servers by hand.</p>
+    <img src="https://media.giphy.com/media/l3q2K5jinAlChoCLS/giphy.gif"
+         alt="Automated maintenance"
+         style="height:180px; margin-top:0.5em; border-radius:6px;">
+  </section>
+
+  <!-- ─── SLIDE 29 : Puppet platforms ─────────────────────────────── -->
+  <section>
+    <h2>Puppet Enterprise, CD4PE, Foreman.</h2>
+    <p>
+      <strong>Puppet Enterprise</strong> — RBAC, reporting, and node management at scale<br>
+      <strong>CD4PE</strong> — CI/CD pipelines for Puppet code (Continuous Delivery for PE)<br>
+      <strong>Foreman</strong> — open-source lifecycle management, integrates with Puppet<br>
+    </p>
+  </section>
+
+  <!-- ─── SLIDE 30 : Puppet community ─────────────────────────────── -->
+  <section>
+    <h2>The ecosystem outlives the company.</h2>
+    <p><strong>Vox Pupuli</strong> — 100+ open-source Puppet modules, community-maintained.<br>
+    <strong>OpenVox</strong> — an emerging open-source fork of the Puppet core.<br>
+    <em>The community is strong, with or without Puppet Inc.</em></p>
+  </section>
+
 
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