Removed cassandra custom image

-#
-# Copyright © 2016-2017 The Thingsboard Authors
-#
-# Licensed 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.
-#
-
-FROM cassandra:3.9
-
-COPY ready-probe.sh /
-
-CMD ["cassandra", "-f"]
\ No newline at end of file

-VERSION=k8stest
-PROJECT=thingsboard
-APP=cassandra
-
-build:
-	docker build --pull -t ${PROJECT}/${APP}:${VERSION} .
-
-push: build
-	docker push ${PROJECT}/${APP}:${VERSION}
\ No newline at end of file

@@ -54,7 +54,7 @@ spec:
               topologyKey: "kubernetes.io/hostname"
       containers:
       - name: cassandra
-        image: thingsboard/cassandra:k8stest
+        image: cassandra:3.9
         imagePullPolicy: Always
         ports:
         - containerPort: 7000

-#!/bin/bash
-#
-# Copyright © 2016-2017 The Thingsboard Authors
-#
-# Licensed 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.
-#
-
-if [[ $(nodetool status | grep $POD_IP) == *"UN"* ]]; then
-  if [[ $DEBUG ]]; then
-    echo "UN";
-  fi
-  exit 0;
-else
-  if [[ $DEBUG ]]; then
-    echo "Not Up";
-  fi
-  exit 1;
-fi
\ No newline at end of file

-#
-# Copyright © 2016-2017 The Thingsboard Authors
-#
-# Licensed 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.
-#
-
-version: '2'
-
-services:
-  cassandra:
-    ports:
-      - "9042"
-      - "9160"
-  zk:
-    ports:
-      - "2181"

@@ -35,9 +35,14 @@ services:
       - CASSANDRA_URL=${CASSANDRA_URL}
     entrypoint: ./install-schema.sh
   cassandra:
-    image: "thingsboard/cassandra:k8stest"
+    image: "cassandra:3.9"
+    ports:
+      - "9042"
+      - "9160"
     volumes:
       - "${CASSANDRA_DATA_DIR}:/var/lib/cassandra"
   zk:
-    image: "thingsboard/zk:k8stest"
+    image: "zookeeper:3.4.9"
+    ports:
+      - "2181"
     restart: always