k8s: cli tips

# K8s tips

* Get the pods behind one service

```
kubectl get pods --show-labels | grep -F -f <(kubectl get svc --no-headers -o wide | awk '{print $7}')
```

* Patch the deployment with a dummy annotation to force the update (only works with alwayspull policies)

```
kubectl patch deployment $DEPNAME -p "{\"spec\":{\"template\":{\"metadata\":{\"annotations\":{\"date\":\"`date +'%s'`\"}}}}}"
```