Kubernetes Cookbook - Second Edition

Creating a Namespace

For creating a Namespace, following are the steps:

1. After deciding on our desired name for Namespace, let's create it with a configuration file:

$ cat my-first-namespace.yamlapiVersion: v1kind: Namespacemetadata:  name: my-namespace// create the resource by subcommand "create"$ kubectl create -f my-first-namespace.yamlnamespace "my-namespace" created// list the namespaces again$ kubectl get nsNAME           STATUS    AGEdefault        Active    16dkube-public    Active    16dkube-system    Active    16dmy-namespace   Active    6s

2. You can now see that we have an additional namespace called my-namespace. Next, let's run a Kubernetes Deployment in this new Namespace:

// run a Deployment with a flag specifying Namespace$ kubectl run my-nginx --image=nginx --namespace=my-namespace ...