Create data directory for am and prometheus

Change-Id: Ie89009480c06cafb15bb06ded263e49ef194dfc9
diff --git a/metadata/service/server/container.yml b/metadata/service/server/container.yml
index 2269896..38facc3 100644
--- a/metadata/service/server/container.yml
+++ b/metadata/service/server/container.yml
@@ -6,6 +6,9 @@
   prometheus:
     server:
       enabled: true
+      dir:
+        config: /srv/volumes/prometheus/server
+        data: /srv/volumes/local/prometheus/server
       bind:
         port: 9090
         address: 0.0.0.0