make sure nf_conntrack is loaded early on

roles/exit-ipv4/tasks/main.yml

@@ -9,6 +9,9 @@
 - name: Load nf_conntrack module
   modprobe: name=nf_conntrack
 
+- name: Enable nf_conntrack during boot
+  lineinfile: dest=/etc/modules line=nf_conntrack
+
 - name: Increas conntrack limit
   sysctl: name=net.netfilter.nf_conntrack_max value={{ conntrack_max }} state=present