Intro

Before jumping into Kubernetes resources, let's take a look over a very important concept called Namespace.

Namespaces are a way to separate cluster resources.

Namespace-based scoping is applicable only for certain types of objects (e.g. Pods Deployments, Services, etc.) and not for cluster-wide objects (e.g. StorageClass, Nodes, PersistentVolumes, etc.).

Usage

🔸  Retrieve all defined namespaces.

        >> kubectl get namespace

     If none specified, the resources are created in the 'default' namespace.

🔸  Create a new namespace called 'test'.

        >> kubectl create namespace test

🔸  Create a pod in the newly created namespace.

      >> kubectl run nginx-pod –-image=nginx –n test

      We'll talk about the pod object a lot more in the later posts.

      For now, you only need to know that they are resources that can be grouped into different namespaces.

🔸  Retrieve all pods in the 'test' namespace.

     >> kubectl get pods –n test

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