have juju-setup use the new bridge, fix errors
diff --git a/roles/juju-setup/tasks/main.yml b/roles/juju-setup/tasks/main.yml
index ae82be7..58c553d 100644
--- a/roles/juju-setup/tasks/main.yml
+++ b/roles/juju-setup/tasks/main.yml
@@ -7,13 +7,20 @@
     release={{ ansible_distribution_release }} arch=amd64
 
 - name: create Virtual Machines with uvt-kvm
-  shell: uvt-kvm create {{ item.name }} --cpu={{ item.cpu }} --memory={{ item.memMB }} --disk={{ item.diskGB }} ; \
-    uvt-kvm wait --insecure {{ item.name }}
+  shell: uvt-kvm create {{ item.name }} --cpu={{ item.cpu }} --memory={{ item.memMB }} --disk={{ item.diskGB }} --bridge="mgmtbr"
     creates=/var/lib/uvtool/libvirt/images/{{ item.name }}.qcow
   with_items: "{{ head_vm_list }}"
 
 - name: Have VMs autostart on reboot
-  command: virsh autostart {{ item.name }}
+  virt:
+    name={{ item.name }}
+    command=autostart
+  with_items: "{{ head_vm_list }}"
+
+- name: wait for VM's to come up
+  wait_for:
+    host={{ item.name }}
+    port=22
   with_items: "{{ head_vm_list }}"
 
 - name: Create /etc/ansible/hosts file
@@ -63,13 +70,12 @@
   juju_facts:
 
 # For setwise operations on desired vs Juju state:
-# list of VM names in head_vm_list dict: head_vm_list | map(attribute='name') | list
 # list of active juju_machines names: juju_machines.keys()
 # list of active juju_services names: juju_services.keys()
 
 - name: Add machines to Juju
   command: "juju add-machine ssh:{{ item }}"
-  with_items: "{{ head_vm_list | map(attribute='service') | list | difference( juju_machines.keys() ) }}"
+  with_items: "{{ head_vm_list | map(attribute='service') | list | reject('undefined') | difference( juju_machines.keys() ) }}"
 
 # run this again, so machines will be in the juju_machines list
 - name: Obtain Juju Facts after machine creation