Fix host for inter-node communication

Change-Id: Ief12b11cd2802666b477e99d58b10f1b7ef77fb9
diff --git a/deploy-krawfish.yml b/deploy-krawfish.yml
index 90d2485..9325e18 100644
--- a/deploy-krawfish.yml
+++ b/deploy-krawfish.yml
@@ -36,6 +36,7 @@
         user: "{{ ansible_facts.getent_passwd[\"korap\"].1 }}"
         init: true
         detach: true
+        network_mode: "host"
         mounts:
           - type: bind
             source: "/opt/korap/krawfish/log"