merge docker files

.travis.yml

@@ -4,10 +4,10 @@ services:
   - docker
 
 before_install:
-  - docker build -t amber-spec -f spec/Dockerfile .
+  - docker build -t amber-spec .
 
 script:
-  - docker-compose -f spec/docker-compose.yml run spec
+  - docker-compose run spec
 
 notifications:
   webhooks:

Dockerfile

@@ -7,4 +7,3 @@ ADD . /app/user
 RUN crystal deps
 
 CMD ["crystal", "spec"]
-

docker-compose.yml

@@ -2,6 +2,14 @@ version: '2'
 services:
   spec:
     build: .
-    command: 'bash -c "cd /app/user && crystal spec"'
+    image: amber-spec
     working_dir: /app/user
-    tmpfs: /app/testing
+    environment:
+      REDIS_URL: 'redis://redis:6379'
+      AMBER_ENV: test 
+    depends_on:
+      - redis
+
+  redis:
+    image: redis:3.2-alpine
+    command: redis-server