Namespaces Solution

To check the amount of pods in a particular namespace:

kubectl get pods --namespace=<namespace>
kubectl get pods -n=<namespace>

Create a pod in a particular namespace:

kubectl run redis --image=redis -n=<namespace>

To list all of the namespaces:
```
kubectl get ns
```
Find a pod in a namespace, just type kubectl get pods --all-namespaces. The same way is to use -A with kubectl get pods -A
How to check for a DNS name:
```
kubectl get pods -n=<namespace_name>
```
Also check the service:
```
kubectl get svc -n=<namespace_name>
```
If a pod and service are in the same namespace, the pod can access it.
For a pod to access a service that is based in another namespace, it has to use the full address of the service. For example:
```
db-service.dev.svc.cluster.local
```