[KYUUBI #1047] Use deployment to run kyuubi server HA on k8s

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### _Why are the changes needed?_
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kyuubi-pod.yaml start a single kyuubi server, use deployment to start multiple servers.

### _How was this patch tested?_
- [X] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #1048 from hddong/add-k8s-deployment.

Closes #1047

661463b [hongdongdong] [KYUUBI#1047] Use deployment to run kyuubi server HA on k8s

Authored-by: hongdongdong <hongdongdong@cmss.chinamobile.com>
Signed-off-by: Kent Yao <yao@apache.org>

docker/kyuubi-deployment.yaml

@@ -0,0 +1,69 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Usage:
+# ConfigMap:
+#   DEMO:
+#     kubectl apply -f https://raw.githubusercontent.com/apache/incubator-kyuubi/master/docker/kyuubi-configmap.yaml
+#   LOCAL:
+#     kubectl create cm kyuubi-defaults --from-file=${KYUUBI_HOME}/conf/kyuubi-defaults.conf
+# Start:
+#   kubectl apply -f https://raw.githubusercontent.com/apache/incubator-kyuubi/master/docker/kyuubi-deployment.yaml
+# Expose port with NodePort:
+#   see usage of kyuubi-service.yaml
+# Config change:
+# 1. edit ConfigMap
+#   kubectl edit cm kyuubi-defaults
+# 2. restart deployment
+#   kubectl delete -f https://raw.githubusercontent.com/apache/incubator-kyuubi/master/docker/kyuubi-deployment.yaml
+#   kubectl apply -f https://raw.githubusercontent.com/apache/incubator-kyuubi/master/docker/kyuubi-deployment.yaml
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: kyuubi-deployment-example
+  labels:
+    app: kyuubi-server
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: kyuubi-server
+  template:
+    metadata:
+      labels:
+        app: kyuubi-server
+    spec:
+      containers:
+        - name: kyuubi-server
+          # TODO: replace this with the official repo
+          image: yaooqinn/kyuubi:1.3.0
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: KYUUBI_JAVA_OPTS
+              value: -Dkyuubi.frontend.bind.host=0.0.0.0
+          ports:
+            - name: frontend-port
+              containerPort: 10009
+              protocol: TCP
+          volumeMounts:
+            - name: kyuubi-defaults
+              mountPath: /opt/kyuubi/conf
+      volumes:
+        - name: kyuubi-defaults
+          configMap:
+            name: kyuubi-defaults