docs(SRV): update

Author: SamyOubouaziz

pages/serverless-containers/concepts.mdx

@@ -150,13 +150,6 @@ The container can then process the message and perform any required actions, suc
 
 The port of a containerized application refers to the network port that the application inside the container listens on for incoming requests.
 
-When you deploy a container, you must map this internal port to a port on the host machine by specifying its value at [container creation](/serverless-containers/how-to/deploy-container/) via the **Port** parameter. The value defined in this parameter will then be passed to your container during the deployment inside the `PORT` environment variable.
-
-<Message type="note">
-- Only one port can be exposed per Serverless Container.
-- Your container is accessible from the internet via ports 80 and 443, regardless of the specified port. The value you set determines how the Scaleway infrastructure accesses your container.
-</Message>
-
 Refer to the [dedicated documentation](/serverless-containers/reference-content/port-variable/) for more information and examples on the **Port** parameter of Serverless Containers. 
 
 ## Privacy policy

pages/serverless-containers/reference-content/port-variable.mdx

@@ -1,10 +1,10 @@
 ---
 meta:
-  title: Understanding the PORT variable
-  description: Learn about the PORT environment variable in Scaleway Serverless Containers.
+  title: Understanding the Port parameter
+  description: Learn about the Port parameter and the PORT environment variable in Scaleway Serverless Containers.
 content:
-  h1: Understanding the PORT variable
-  paragraph: Learn about the PORT environment variable in Scaleway Serverless Containers and how to use it effectively.
+  h1: Understanding the Port parameter
+  paragraph: Learn about the Port parameter and the PORT environment variable in Scaleway Serverless Containers.
 tags: port variable environment containers serverless
 dates:
   validation: 2025-04-02
@@ -14,3 +14,25 @@ categories:
   - containers
   - environment-variables
 ---
+
+## Port parameter
+
+The port of a containerized application refers to the network port that the application inside the container listens on for incoming requests.
+
+When you deploy a container, you must map this internal port to a port on the host machine by specifying its value at [container creation](/serverless-containers/how-to/deploy-container/) via the **Port** parameter. The value defined in this parameter will then be passed to your container during the deployment inside the `PORT` environment variable.
+
+<Message type="note">
+- Only one port can be exposed per Serverless Container.
+- Your container is accessible from the internet via ports 80 and 443, regardless of the specified port. The value you set determines how the Scaleway infrastructure accesses your container.
+</Message>
+
+## PORT environment variable
+
+To allow you application to be reachable, the port declared as a parameter when [creating your Container](/serverless-containers/how-to/deploy-container/) must be the same as the port exposed by your containerized application.
+
+We therefore recommend you use the `$PORT` variable in your application, as it will contain the port parameter value, as shown in the examples below:
+
+
+
+
+##