Remove all iptables rules that are set in base image

Change-Id: If92e0e7a6ae667b70eb7d0df5d6534a943032c42

diskimage-create/diskimage-create.sh

@@ -117,8 +117,8 @@ if [ -z "$PLUGIN" -o "$PLUGIN" = "vanilla" ]; then
   export HIVE_VERSION=${HIVE_VERSION:-"0.11.0"}
 
   ubuntu_elements_sequence="base vm ubuntu hadoop swift_hadoop oozie mysql hive"
-  fedora_elements_sequence="base vm fedora hadoop swift_hadoop oozie mysql hive"
-  centos_elements_sequence="vm rhel hadoop swift_hadoop oozie mysql hive redhat-lsb"
+  fedora_elements_sequence="base vm fedora hadoop swift_hadoop oozie mysql hive disable-firewall"
+  centos_elements_sequence="vm rhel hadoop swift_hadoop oozie mysql hive redhat-lsb disable-firewall"
 
   # Workaround for https://bugs.launchpad.net/diskimage-builder/+bug/1204824
   # https://bugs.launchpad.net/sahara/+bug/1252684

elements/disable-firewall/post-install.d/30-disable-firewalld

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+install-packages which
+
 if which systemctl; then
    systemctl disable firewalld
 fi

elements/hadoop/post-install.d/firstboot

@@ -23,14 +23,9 @@ function firstboot_common()
              sleep 1
           done
           chown -R $user:$user /home/$user
-
-          #TODO: configure iptables (https://bugs.launchpad.net/sahara/+bug/1195744)
-          iptables -F
        ;;
        CentOS )
           chown -R cloud-user:cloud-user /home/cloud-user
-          service iptables stop
-          chkconfig iptables off
        ;;
        * )
           echo "Unknown distro: $distro. Exiting."