6-Namespace

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 Namespace
command to create a namespace - kubectl create namespace <namespace name>
command to see the current namespaces in cluser - kubectl get namespaces
 or kubectl get ns or kubectl get ns --no-headers 
to see the pods running in another namespace - kubectl get pods --namespace=<namespace name>
or kubectl -n <namespacename> get pods
to create a pod in another namespace - kubectl get pods --namespace=<namespace name>
we can alsoe mention namespace in yaml file under metadata - 

example - 

metadata:
   name:nginx-app(this is name of pod)
   namespace: namespace-name
      labels:

c
		 
example yaml file to create a namespace (cat > namespace-defintion.yaml) - 

apiVersion: v1
kind: Namespace
metadata:
   name: dev
		 
 kubectl create -f namespace-defintion.yaml
 
command to change the namespace from default to dev(ur own namespace name) - kubectl config set-context $(kubectl config current-context) --namespace=dev

to view pods in all namespaces - kubectl get pods --all-namespaces 

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