Add a tutorial to deploy Keycloak in cluster mode

assets/style.css

@@ -1135,6 +1135,19 @@ div, span, html, body, ul, article, main, nav {
   min-width: 0;
 }
 
+/* Tutorials disclaimer */
+[id="tutorial_disclaimer"] {
+    background-color: var(--color-sc-gray-4);
+    border-radius: 8px;
+    margin: calc(var(--spacing) * 12)
+            0
+            calc(var(--spacing) * 18)
+            0;
+    padding: calc(var(--spacing) * 6)
+             calc(var(--spacing) * 4)
+             calc(var(--spacing) * 6)
+             calc(var(--spacing) * 8);
+}
 
 ol.deploy-timeline {
     border-left: 4px solid var(--color-primary-gray-200);

src/_includes/tutorial_disclaimer.md

@@ -0,0 +1,54 @@
+<div id="tutorial_disclaimer" markdown="1">
+## Disclaimer
+
+This tutorial provides guidance based on approaches that are generally
+considered effective and aligned with common industry practices. However, it
+reflects a generalized perspective and may not be fully suitable for every
+environment or use case.
+
+While care has been taken to follow recognized best practices, the actual
+implementation will depend on your specific infrastructure, constraints, and
+requirements. **You remain solely responsible for evaluating, adapting, and
+applying the instructions appropriately in your context**.
+
+We strive to keep this content accurate and up to date. Nevertheless,
+technologies, dependencies, and security standards evolve over time, and we
+cannot guarantee that all information remains current or error-free.
+
+All commands, configuration snippets, and examples are provided for
+illustrative purposes only. They are not intended to be used verbatim in
+production without proper review, testing, and adaptation.\\
+**Final implementation decisions and their consequences are the responsibility
+of the reader**.
+
+### Security Notice
+
+Proper security practices are essential when deploying software:
+- **Always use strong, unique passwords** for all services and accounts.
+- **Do not reuse credentials** across systems.
+- Prefer long passphrases (at least 16 characters) combining letters, numbers,
+  and symbols.
+- **Store credentials securely** (e.g., password managers, secret management
+  tools) and **never hardcode them in source code or configuration files**.
+
+Here is an example command to generate a strong password from the command line:
+```bash
+openssl rand -base64 24
+```
+
+Alternatively:
+```bash
+head -c 32 /dev/urandom | base64
+```
+
+### Feedback and Contributions
+
+If you identify an error, outdated information, or missing details,
+contributions are welcome. You may:
+
+- Get in touch with our Support Team
+- [Open an issue](https://github.com/Scalingo/documentation/issues)
+- [Submit a pull request](https://github.com/Scalingo/documenation/pulls)
+
+Your feedback helps improve the quality and reliability of this documentation.
+</div>