FLOATING_IP_POOL is null.

null no longer works,
the inherited value of public is not being inherited.
rather it is being explicitly set to null.
floating_ip_pool=$(get_cfg "$cfg_file" FLOATING_IP_POOL "null")
This leads me to belive that
get_minion_options function will set the floating_ip
when set explicitly in the minion configs.

Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
Change-Id: I422ce8f170894329ff8efd54970309cd619e2427
diff --git a/jenkins-config/clouds/openstack/cattle/centos7-docker-2c-8g.cfg b/jenkins-config/clouds/openstack/cattle/centos7-docker-2c-8g.cfg
index 288bad5..a428fdd 100644
--- a/jenkins-config/clouds/openstack/cattle/centos7-docker-2c-8g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/centos7-docker-2c-8g.cfg
@@ -1,2 +1,4 @@
 IMAGE_NAME=ZZCI - CentOS 7 - docker - x86_64 - 20200123-164248.786
 HARDWARE_ID=v2-standard-2
+FLOATING_IP_POOL=public
+VOLUME_SIZE=20