Split docker-compose and build-docker-compose

.travis.yml

@@ -10,4 +10,5 @@ before_install:
   - sudo mv docker-compose /usr/local/bin
 
 script:
-  - docker-compose build
+  - docker-compose -f docker-compose.yml -f build-docker-compose.yml build
+

build-docker-compose.yml

@@ -0,0 +1,16 @@
+version: '3'
+services:
+  misp:
+    image: coolacid/misp-docker:core-latest
+    build:
+        context: server/.
+        args:
+            - MISP_TAG=${MISP_TAG}
+            - PHP_VER=${PHP_VER}
+
+  misp-modules:
+    image: coolacid/misp-docker:modules-latest
+    build:
+        context: modules/.
+        args:
+            - MODULES_TAG=${MODULES_TAG}

docker-compose.yml

@@ -20,11 +20,6 @@ services:
 
   misp:
     image: coolacid/misp-docker:core-latest
-    build:
-        context: server/.
-        args:
-            - MISP_TAG=${MISP_TAG}
-            - PHP_VER=${PHP_VER}
     depends_on:
       - redis
       - db
@@ -46,10 +41,6 @@ services:
 
   misp-modules:
     image: coolacid/misp-docker:modules-latest
-    build:
-        context: modules/.
-        args:
-            - MODULES_TAG=${MODULES_TAG}
     environment:
       - "REDIS_BACKEND=redis"
     depends_on: