Specify docker-compose config file in .travis.yml

.travis.yml

@@ -24,10 +24,10 @@ before_script:
   - docker ps
 
 script:
-  - docker-compose run --rm test_web rails db:wait_for_init db:create spec
-  - docker-compose run --rm test_web yarn test
-  - docker-compose run --rm test_web rubocop
-  - docker-compose run --rm test_web yarn lint
+  - docker-compose -f docker-compose.ci.yml run --rm test_web rails db:wait_for_init db:create spec
+  - docker-compose -f docker-compose.ci.yml run --rm test_web yarn test
+  - docker-compose -f docker-compose.ci.yml run --rm test_web rubocop
+  - docker-compose -f docker-compose.ci.yml run --rm test_web yarn lint
 
 after_script:
-  - docker-compose down
+  - docker-compose -f docker-compose.ci.yml down