Before:
```sh
kubectl get po -l run=nginx-app
No resources found in default namespace.
```
Because:
```sh
kubectl get po --show-labels
NAME READY STATUS RESTARTS AGE LABELS
nginx-app-58cfd4c468-jx6qp 1/1 Running 0 17m app=nginx-app,pod-template-hash=58cfd4c468
```
After:
```sh
kubectl get po -l app=nginx-app
NAME READY STATUS RESTARTS AGE
nginx-app-58cfd4c468-jx6qp 1/1 Running 0 18m
```
joostas
2c3ece825f