first commit

docker-compose.yml

@@ -0,0 +1,12 @@
+visualizer:
+  image: dockersamples/visualizer:stable  
+  ports:   
+     - "8001:8080"  
+  stop_grace_period: 1m30s 
+  volumes:    - "/var/run/docker.sock:/var/run/docker.sock"  
+  deploy:    
+    update_config:     
+      failure_action: rollback  
+    placement:
+      constraints:      
+        - 'node.role == manager'