Test accessory_hosts with roles and without filtering

test/fixtures/deploy_with_accessories.yml

@@ -16,7 +16,7 @@ builder:
 accessories:
   mysql:
     image: mysql:5.7
-    host: 1.1.1.3
+    host: 1.1.1.5
     port: 3306
     env:
       clear:

test/fixtures/deploy_with_single_accessory.yml

@@ -0,0 +1,29 @@
+service: app
+image: dhh/app
+servers:
+  web:
+    - "1.1.1.1"
+    - "1.1.1.2"
+  workers:
+    - "1.1.1.3"
+    - "1.1.1.4"
+registry:
+  username: user
+  password: pw
+builder:
+  arch: amd64
+
+accessories:
+  mysql:
+    image: mysql:5.7
+    host: 1.1.1.5
+    port: 3306
+    env:
+      clear:
+        MYSQL_ROOT_HOST: '%'
+      secret:
+        - MYSQL_ROOT_PASSWORD
+    files:
+      - test/fixtures/files/my.cnf:/etc/mysql/my.cnf
+    directories:
+      - data:/var/lib/mysql