From volume to Swarm config

dockerized/first-level-nginx/swarmed/compose.yaml

@@ -24,6 +24,15 @@ services:
           window: 120s
       healthcheck:
         test: ["CMD", "service", "nginx", "status"]
-      volumes: 
-        - ../configs/node.conf:/etc/nginx/nginx.conf:ro
-        - ../content/index.html:/var/www/default/index.html
+      configs:
+        - source: nginx_conf
+          target: /etc/nginx/nginx.conf
+        - source:
+          target: nginx_static
+          target: /var/www/default/index.html
+
+configs:
+  nginx_conf:
+    file: ../configs/node.conf
+  nginx_static:
+    file: ../content/index.html