feat(use-cases): add scaling your application use case MTA-6623

pages/use-cases/application-hosting/index.mdx

@@ -21,6 +21,13 @@ Looking to deploy a web application? Scaleway offers scalable and secure hosting
         label="Read more"
         url="/tutorials/deploy-saas-application/"
     />
+    <SummaryCard
+        title="Scaling your application with the Scaleway infrastructure"
+        icon="info"
+        description="Learn how to effectively scale your application using the most adapted Scaleway product."
+        label="Read more"
+        url="/use-cases/application-hosting/scaling-your-application/"
+    />
 </Grid>
 <Grid>
     <SummaryCard

pages/use-cases/application-hosting/scaling-your-application.mdx

@@ -0,0 +1,78 @@
+---
+title: Scaling your application
+description: This page provides guidelines, tips, and best practices to deploy and scale your application using Scaleway products
+tags: deploy create scale scaling application app webapp autoscaling kubernetes instances serverless
+dates:
+  validation: 2025-11-18
+  posted: 2025-11-18
+---
+
+Scaleway offers scalable and secure hosting solutions to support your app development and deployment. Whether you're building a small prototype or a full-scale enterprise application, we have the resources you need.
+
+Choosing the right hosting strategy is key to ensuring performance, scalability, and maintainability. Below are best practices and guidelines to help you scale your application effectively using Scaleway products.
+
+## Choose the Right Hosting Model for Your Use Case
+
+Different applications have different requirements in terms of scalability, control, and operational complexity. Consider the following deployment options based on your application’s needs:
+
+| Deployment Method               | Best For                                                  | Scalability | Management Overhead |
+|----------------------------------|------------------------------------------------------------|-------------|---------------------|
+| **Serverless Containers**        | Dynamic web apps, APIs, microservices                      | High        | Low                 |
+| **Instances**                    | Full control, long-running workloads, custom configurations | Medium      | High                |
+| **Elastic Metal (Aluminium)**    | High-performance, predictable workloads, low-latency apps  | High        | High                |
+| **Kubernetes Kapsule**           | High-performance, high availability, low-latency apps      | High        | High                |
+| **Object Storage + Edge Services** | Static websites, frontend assets, serverless front-ends     | High     | Very Low            |
+
+<Message type="tip">
+For most modern web applications, we recommend starting with **Serverless Containers** or **Instances** depending on whether you prefer abstraction over infrastructure or full control.
+</Message>
+
+## Best Practices for Scaling Applications
+
+### Use Auto-Scaling Where Possible
+
+When deploying with **Serverless Containers**, your application automatically scales to zero when idle and scales out under load, optimizing cost and performance. This is ideal for variable or unpredictable traffic.
+
+<Message type="tip">
+Structure your app to be stateless and rely on external services (like Managed Databases for PostgreSQL and MySQL or Object Storage) for persistence to make scaling seamless.
+</Message>
+
+### Leverage Edge Services for Global Performance
+
+Pair your application with **Scaleway Edge Services** to cache responses at the edge, reducing latency and backend load. This is especially effective for content-heavy or globally accessed applications.
+
+<Message type="tip">
+Use Edge TLS pipelines to secure and accelerate traffic to your app or static assets.
+</Message>
+
+### Separate Concerns: Frontend and Backend
+
+Deploy frontend and backend components independently:
+- Host static frontends (React, Vue, etc.) on **Object Storage** with **Edge** for fast global delivery.
+- Run backend APIs in **Serverless Containers** or **Instances** for dynamic processing.
+
+<Message type="tip">
+Independent scaling, faster iteration, and improved security.
+</Message>
+
+### Automate Deployment and CI/CD
+
+Use Scaleway Container Registry and integrate with your CI/CD pipeline to automate image building and deployment. This ensures consistent, repeatable deployments.
+
+<Message type="tip">
+Tag your container images semantically and use deployment hooks to minimize downtime.
+</Message>
+
+### Monitor and Optimize
+
+Use monitoring tools to track CPU, memory, and request metrics. Scaleway provides integration points for observability solutions.
+
+<Message type="tip">
+Set up alerts for high load or error rates to proactively manage performance.
+</Message>
+
+### Secure Your Application
+
+- Always enable HTTPS using **Edge Services** or load balancers.
+- Use private networks and security groups to restrict access to backends and databases.
+- Regularly update and patch your environments, especially on **Instances** and **Elastic Metal**.