Create the resources in a specific namespace

[chaen]

It is bad practice to put our resources in the default namespace

[aldbr]

The documentation states:

Namespaces are intended for use in environments with many users spread across multiple teams, or projects. For clusters with a few to tens of users, you should not need to create or think about namespaces at all. Start using namespaces when you need the features they provide.

For the demo, it is likely fine to have resources in the default namespace, isn't it?

Of course, for production use, one would need to create a specific namespace, as clearly explains here:

For a production cluster, consider not using the default namespace. Instead, make other namespaces and use those.

What are you expecting exactly here?