kubernetes tutorial | Kubernetes Namespace | Demo
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kubernetes tutorial | Kubernetes Namespace | Demo
Description
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In this video, you are going to learn the concepts of kubernetes namespaces.
we are also going to see a demo on the namespaces as well.
Kubernetes Namespace
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1. What is a Kubernetes Namespace ?
2. Why & When to use Kubernetes Namespace ?
3. Not all the objects are in the namespace !
4. Default Namespaces
5. How can pods communicate across Kubernetes namespaces?
6. DEMO
7. Thank you
For suggestions/feedback/doubts contact
email: [email protected]
Happy Learning !!!
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USEFUL LINKS
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API References:
https://kubernetes.io/docs/reference/...
Kubectl Command Reference:
https://kubernetes.io/docs/reference/...
Kubernetes Namespaces
https://kubernetes.io/docs/concepts/o...
https://kubernetes.io/docs/tasks/admi...
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#vsparkz #kubernetes #k8s #containers
DEMO STEPS
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Step 1: Access & Inspect the Kubernetes Cluster
$ kubectl cluster-info
$ kubectl get nodes
$ kubectl get pods -n kube-system
Step 2: Inspect the default namespaces
$ kubectl get namespace
Step 3: Create Namespaces - development, production
$ kubectl create namespace development
$ kubectl create namespace production
Step 4: Deploy and Inspect pods in development namespace
$ kubectl run nginx --image=nginx --namespace=development
$ kubectl get pods --namespace=development
Step 5: Deploy and Inspect pods in "production" namespace
$ kubectl run nginx --image=nginx --namespace=production --dry-run=client -o yaml
Copy the content and create a file: pod_ns_prod.yaml
$ vim pod_ns_prod.yaml
_========================================
apiVersion: v1
kind: Pod
metadata:
labels:
run: nginx
name: nginx
namespace: production
spec:
containers:
image: nginx
name: nginx
========================================_
$ kubectl apply -f pod_ns_prod.yaml
THE END