1. Create and run a Pod
kubectl run my-nginx --image=nginx:alpine
We can run
kubectl get all
to see what has been created:
2. Delete a Pod:
kubectl delete pod my-nginx-65959bc4b9-dfvwh
Then run:
kubectl get pods
I found a new pod get created.
my-nginx-65959bc4b9-ltvxs
3. This is because the 'deployment' is trying to keep the current state, if I have one pod, and 'deploment' trying to keep one pod alive: which means if I deleted one, 'deployment' will create a new pod. After's why you see another pod pop up.
4. But this point, we have one pod, but we cannot access it.
There is nothing in http://localhost:8080/
That's becaue we don't forward the port to external world. To do it:
kubectl port-forward my-nginx-65959bc4b9-ltvxs 8080:80
After that we can see the welcome page from nginx.
5. So actually how to delete a pod? Actually, if you want to delete a Pod, you should delete the whole 'deployment;:
kubectl delete deployment my-nginx
6. We can check again:
kubectl get pods // No resources found.