Set up repos on VIRTHOST and INSTACK VM

sudo yum -y install yum-plugin-priorities
sudo curl -o /etc/yum.repos.d/delorean-newton.repo  \
http://buildlogs.centos.org/centos/7/cloud/x86_64/rdo-trunk-newton-tested/delorean.repo
sudo curl -o /etc/yum.repos.d/delorean-deps-newton.repo \
https://trunk.rdoproject.org/centos7-newton/delorean-deps.repo

Register 4 nodes

$ openstack baremetal import instackenv.json

OK

$ openstack baremetal configure boot

OK

$ openstack baremetal introspection bulk start

HANGS

Attempt to  introspecting a Single Node

for each entry entry in `ironic node-list`  finally get
introspection status "Finished - True" and move to available
via 'ironic node-set-provision-state UUID provide`
Procedure works for deployment

#!/bin/bash -x
source /home/stack/stackrc   
openstack overcloud deploy  \
 --control-scale 3 --compute-scale 1 \
 --libvirt-type qemu \
 --ntp-server pool.ntp.org  \
 --templates  /usr/share/openstack-tripleo-heat-templates 

Then drop all VMs and start from scratch same procedure
Attempt to deploy :-
Interface vlan10 added  && network_env.yaml created in ~stack/ folder

#!/bin/bash -x
source /home/stack/stackrc   
openstack overcloud deploy  \
 --control-scale 3 --compute-scale 1 \
 --libvirt-type qemu \
 --ntp-server pool.ntp.org  \
 --templates  /usr/share/openstack-tripleo-heat-templates \
 -e  /usr/share/openstack-tripleo-heat-templates/environments/puppet-pacemaker.yaml \
 -e  /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml \
 -e  /usr/share/openstack-tripleo-heat-templates/environments/net-single-nic-with-vlans.yaml \
 -e  $HOME/network_env.yaml

Only 2 VMst boot  the other 2 VMs fail to boot  . Console reports   IPXE failure .
Heat session reports "not enough nodes available" error 500 . Deployment fails.

Previous Newton trunk "current-passed-ci" ( around 10/11/16 ) worked fine.
$ openstack baremetal introspection bulk start
Completed OK , no further issues. Redeployment  still works fine  after reboot
to another CentOS 7.2 instance . ( several CentOS 7.2 instances multibooting )

Thanks.
Boris.