How namespaces impact your resources and services

In this section, we will learn how to create, update, and delete namespaces, as well as the impacts that namespaces have on services and Pods.

We will also learn how to create resources by specifying a custom namespace so that we don’t rely on the default one.

Listing namespaces inside your cluster

We saw this in the previous section, Understanding default namespaces, but in this section, we will learn how to list and explore the namespaces that have been created in your Kubernetes cluster:

$ kubectl get namespaces
NAME              STATUS   AGE
default           Active   8d
kube-node-lease   Active   8d
kube-public       Active   8d
kube-system       Active   8d

Keep in mind that all the commands that make use of the namespaces resource kind can also use the ns alias to benefit from a shorter format.

Retrieving the data of a specific namespace

Retrieving the data of a specific namespace can be achieved...