Adding minion adhoc as a k8s deployment for minion deployment

[xiangfu0]

Adding k8s deployment.apps/pinot-minion-stateless for minion stateless deployment.

This deployment by default uses a local disk for temp persistence.

The new deployment looks like this:

➜  kubectl get all -n pinot
NAME                                          READY   STATUS    RESTARTS      AGE
pod/pinot-broker-0                            1/1     Running   1 (88s ago)   113s
pod/pinot-controller-0                        1/1     Running   0             113s
pod/pinot-minion-stateless-5765bcc487-jr8fn   1/1     Running   1 (72s ago)   113s
pod/pinot-server-0                            1/1     Running   1 (71s ago)   113s
pod/pinot-zookeeper-0                         1/1     Running   0             113s

NAME                                TYPE           CLUSTER-IP       EXTERNAL-IP   PORT(S)                      AGE
service/pinot-broker                ClusterIP      10.110.116.28    <none>        8099/TCP                     114s
service/pinot-broker-external       LoadBalancer   10.110.57.63     <pending>     8099:31622/TCP               114s
service/pinot-broker-headless       ClusterIP      None             <none>        8099/TCP                     114s
service/pinot-controller            ClusterIP      10.107.127.32    <none>        9000/TCP                     114s
service/pinot-controller-external   LoadBalancer   10.109.193.170   <pending>     9000:31333/TCP               114s
service/pinot-controller-headless   ClusterIP      None             <none>        9000/TCP                     114s
service/pinot-server                ClusterIP      10.100.68.224    <none>        8098/TCP,80/TCP              114s
service/pinot-server-headless       ClusterIP      None             <none>        8098/TCP,80/TCP              114s
service/pinot-zookeeper             ClusterIP      10.97.195.107    <none>        2181/TCP,2888/TCP,3888/TCP   114s
service/pinot-zookeeper-headless    ClusterIP      None             <none>        2181/TCP,2888/TCP,3888/TCP   114s

NAME                                     READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/pinot-minion-stateless   1/1     1            1           114s

NAME                                                DESIRED   CURRENT   READY   AGE
replicaset.apps/pinot-minion-stateless-5765bcc487   1         1         1       114s

NAME                                READY   AGE
statefulset.apps/pinot-broker       1/1     113s
statefulset.apps/pinot-controller   1/1     113s
statefulset.apps/pinot-server       1/1     113s
statefulset.apps/pinot-zookeeper    1/1     113s

[Jackie-Jiang]

LGTM. Should we consider naming it minion-stateless? I feel adhoc is a little bit confusing