change to version 2

Author: linux-china

docker-compose.yml

@@ -1,13 +1,16 @@
-maven:
-    image: maven:3.3.3-jdk-8
-    volumes:
-        - '.:/usr/src/app'
-        - '~/.m2:/root/.m2'
-    working_dir: /usr/src/app
-    environment:
-        SPRING_APPLICATION_JSON: '{"spring.redis.host":"redis.host"}'
-    command:  mvn -B clean test
-    links:
-        - redis:redis.host
-redis:
-    image: redis:3.0.3
+version: '2'
+
+services:
+  maven:
+      image: maven:3.3.3-jdk-8
+      volumes:
+          - '.:/usr/src/app'
+          - '~/.m2:/root/.m2'
+      working_dir: /usr/src/app
+      environment:
+          SPRING_APPLICATION_JSON: '{"spring.redis.host":"redis.host"}'
+      command:  mvn -B clean test
+      links:
+          - redis:redis.host
+  redis:
+      image: redis:3.0.3