MNAIO: Use images subdirectory for VM images

Instead of putting the images in the root of the disk,
we use a subdirectory. This prevents silly mistakes
from happening.

Change-Id: I19d22b7e72de88736db410a771ec22664c641c94

multi-node-aio/playbooks/deploy-vms.yml

@@ -58,7 +58,7 @@
 
     - name: Delete VM Disk Image
       file:
-        path: "{{ _virt_pools.pools.default.path | default('/data') }}/{{ hostvars[item]['server_hostname'] }}.img"
+        path: "{{ _virt_pools.pools.default.path | default('/data/images') }}/{{ hostvars[item]['server_hostname'] }}.img"
         state: absent
       when:
         - hostvars[item]['server_vm'] | default(false) | bool
@@ -89,7 +89,7 @@
       block:
         - name: Find existing base image files
           find:
-            paths: "{{ _virt_pools.pools.default.path | default('/data') }}"
+            paths: "{{ _virt_pools.pools.default.path | default('/data/images') }}"
             patterns: '*-base.img'
           register: _base_images
 
@@ -112,9 +112,9 @@
             qemu-img create
             -f qcow2
             {% if vm_use_snapshot | bool %}
-            -b {{ _virt_pools.pools.default.path | default('/data') }}/{{ hostvars[item]['server_hostname'] }}-base.img
+            -b {{ _virt_pools.pools.default.path | default('/data/images') }}/{{ hostvars[item]['server_hostname'] }}-base.img
             {% endif %}
-            {{ _virt_pools.pools.default.path | default('/data') }}/{{ hostvars[item]['server_hostname'] }}.img
+            {{ _virt_pools.pools.default.path | default('/data/images') }}/{{ hostvars[item]['server_hostname'] }}.img
             {{ default_vm_storage }}m
           when:
             - hostvars[item]['server_vm'] | default(false) | bool
@@ -133,7 +133,7 @@
         command: define
         xml: >-
           {%- if (vm_use_snapshot | default(False)) | bool %}
-          {{ lookup('file', _virt_pools.pools.default.path | default('/data') ~ '/' ~ hostvars[item]['server_hostname'] ~ '.xml') }}
+          {{ lookup('file', _virt_pools.pools.default.path | default('/data/images') ~ '/' ~ hostvars[item]['server_hostname'] ~ '.xml') }}
           {%- else %}
           {{ lookup('template', 'kvm/kvm-vm.xml.j2') }}
           {%- endif %}

multi-node-aio/playbooks/kvm/kvm-vm.xml.j2

@@ -41,7 +41,7 @@
 {% elif default_vm_disk_mode == "file" %}
     <disk type='file' device='disk'>
       <driver name='qemu' type='qcow2' cache='none' io='native'/>
-      <source file='{{ _virt_pools.pools.default.path | default('/data') }}/{{ hostvars[item]["server_hostname"] }}.img'/>
+      <source file='{{ _virt_pools.pools.default.path | default('/data/images') }}/{{ hostvars[item]["server_hostname"] }}.img'/>
 {% endif %}
       <target dev='vda' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>

multi-node-aio/playbooks/save-vms.yml

@@ -58,7 +58,7 @@
         fi
       args:
         executable: /bin/bash
-        chdir: "{{ _virt_pools.pools.default.path | default('/data') }}"
+        chdir: "{{ _virt_pools.pools.default.path | default('/data/images') }}"
       when:
         - hostvars[item]['server_vm'] | default(false) | bool
       with_items: "{{ groups['pxe_servers'] }}"
@@ -69,7 +69,7 @@
     - name: Save VM definition
       copy:
         src: "/etc/libvirt/qemu/{{ hostvars[item]['server_hostname'] }}.xml"
-        dest: "{{ _virt_pools.pools.default.path | default('/data') }}/"
+        dest: "{{ _virt_pools.pools.default.path | default('/data/images') }}/"
         remote_src: yes
       when:
         - hostvars[item]['server_vm'] | default(false) | bool
@@ -86,12 +86,12 @@
       shell: "pip --disable-pip-version-check freeze > pip-requirements.txt"
       args:
         executable: /bin/bash
-        chdir: "{{ _virt_pools.pools.default.path | default('/data') }}"
+        chdir: "{{ _virt_pools.pools.default.path | default('/data/images') }}"
       changed_when: false
 
     - name: Find all the files for the manifest
       find:
-        paths: "{{ _virt_pools.pools.default.path | default('/data') }}"
+        paths: "{{ _virt_pools.pools.default.path | default('/data/images') }}"
         patterns:
           - "*-base.img"
           - "*.xml"
@@ -107,4 +107,4 @@
     - name: Write out the manifest file
       copy:
         content: "{{ _manifest_content | to_nice_json }}"
-        dest: "{{ _virt_pools.pools.default.path | default('/data') }}/manifest.json"
+        dest: "{{ _virt_pools.pools.default.path | default('/data/images') }}/manifest.json"

multi-node-aio/playbooks/setup-host.yml

@@ -363,6 +363,14 @@
             state: mounted
             fstype: ext4
 
+        - name: Create the images directory
+          file:
+            path: /data/images
+            owner: root
+            group: root
+            mode: "0755"
+            state: directory
+
         - name: Define the default virt storage pool
           virt_pool:
             name: default
@@ -371,7 +379,7 @@
               <pool type='dir'>
                 <name>default</name>
                 <target>
-                  <path>/data</path>
+                  <path>/data/images</path>
                   <permissions>
                     <mode>0755</mode>
                     <owner>0</owner>