Merge pull request #12 from volodymyr-babak/master

removed redundant links

@@ -28,4 +28,4 @@ echo "building images.."
 $command build
 
 echo "starting cassandra, zookeeper, thingsboard-db-schema images..."
-$command up -d cassandra zookeeper thingsboard-db-schema
+$command up -d db zk thingsboard-db-schema

@@ -17,10 +17,10 @@
 version: '2'
 
 services:
-  cassandra:
+  db:
     ports:
       - "9042"
       - "9160"
-  zookeeper:
+  zk:
     ports:
       - "2181"

@@ -17,10 +17,10 @@
 version: '2'
 
 services:
-  cassandra:
+  db:
     ports:
       - "9042:9042"
       - "9160:9160"
-  zookeeper:
+  zk:
     ports:
       - "2181:2181"

@@ -23,24 +23,18 @@ services:
       - "8080:8080"
       - "1883:1883"
       - "5683:5683"
-    links:
-      - cassandra:db
-      - zookeeper:zk
-      - thingsboard-db-schema:thingsboard-db-schema
     env_file:
       - thingsboard.env
     entrypoint: ./run_thingsboard.sh
   thingsboard-db-schema:
     image: "thingsboard/thingsboard-db-schema:1.0"
-    links:
-      - cassandra:db
     env_file:
       - thingsboard-db-schema.env
     entrypoint: ./install_schema.sh
-  cassandra:
+  db:
     image: "cassandra:3.9"
     volumes:
       - "${CASSANDRA_DATA_DIR}:/var/lib/cassandra"
-  zookeeper:
+  zk:
     image: "zookeeper:3.4.9"
     restart: always