add docker-compose for utilities

docker-compose-mongo-cmd.yml

@@ -0,0 +1,7 @@
+version: '3'
+services:
+  mongo-dump:
+    image: "mongo:latest"
+    command: ["mongodump", "--host", "eventman-mongo", "--out", "/tmp/", "--db", "eventman"]
+    external_links:
+      - eventman_eventman-mongo_1:eventman-mongo