Add rudimentary vhost poweroff playbook

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>

playbooks/vhost_poweroff.yml

@@ -0,0 +1,63 @@
+#
+# This playbook lets you safely reboot a virthost and all it's guests.
+#
+# requires --extra-vars="target=somevhost fqdn"
+
+#General overview:
+# talk to the vhost
+# get back list of instances
+# add each of their hostnames to an addhoc group
+# halt each of them in a second play
+# wait for them to die
+# third play, reboot the vhost
+#     wait for vhost to come back
+
+# TODO: Figure out how to compare virt info pre and post boot.
+
+- name: find instances
+  hosts: "{{ target }}"
+  gather_facts: False
+  user: root
+
+  tasks:
+  - name: get list of guests
+    virt: command=list_vms
+    register: vmlist
+
+#  - name: get info on guests (prereboot)
+#    virt: command=info
+#    register: vminfo_pre
+
+  - name: add them to myvms_new group
+    local_action: add_host hostname={{ item }} groupname=myvms_new
+    with_items: "{{ vmlist.list_vms }}"
+
+- name: halt instances
+  hosts: myvms_new
+  user: root
+  gather_facts: False
+  serial: 1
+
+  tasks:
+  - name: halt the vm instances - to poweroff
+    command: /sbin/shutdown -h 1
+    ignore_errors: true
+    # if one of them is down we don't care
+
+- name: wait for the whole set to die.
+  hosts: myvms_new
+  gather_facts: False
+  user: root
+
+  tasks:
+  - name: wait for them to die
+    local_action: wait_for port=22 delay=30 timeout=300 state=stopped host={{ inventory_hostname }}
+
+- name: reboot vhost
+  hosts: "{{ target }}"
+  gather_facts: False
+  user: root
+
+  tasks:
+  - name: halt the virthost
+    command: /sbin/shutdown -h 1