Add node-disks role

This patch adds this new role created from:
- validations/node-disks.yaml

Change-Id: I0ea59d02fd28d651fa29d81583fa13253576a0cb
Implements: blueprint validation-framework
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>

playbooks/node-disks.yaml

@@ -0,0 +1,12 @@
+---
+- hosts: undercloud
+  vars:
+    metadata:
+      name: Check node disk configuration
+      description: >
+        Check node disk numbers and sizes and whether root device hints are set.
+      groups:
+        - pre-deployment
+    ironic_conf_file: "/var/lib/config-data/puppet-generated/ironic/etc/ironic/ironic.conf"
+  roles:
+    - node-disks

roles/node-disks/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+ironic_conf_file: "/var/lib/config-data/puppet-generated/ironic/etc/ironic/ironic.conf"

roles/node-disks/meta/main.yml

@@ -0,0 +1,27 @@
+galaxy_info:
+  author: TripleO Validations Team
+  company: Red Hat
+  license: Apache
+  min_ansible_version: 2.4
+
+  platforms:
+  - name: CentOS
+    versions:
+    - 7
+  - name: RHEL
+    versions:
+    - 7
+
+  categories:
+    - cloud
+    - baremetal
+    - system
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is a keyword that describes
+    # and categorizes the role. Users find roles by searching for tags. Be sure to
+    # remove the '[]' above, if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+    #       Maximum 20 tags per role.
+
+dependencies: []

roles/node-disks/tasks/main.yml

@@ -0,0 +1,24 @@
+---
+- name: Get Ironic Inspector swift auth_url
+  become: true
+  ini:
+    path: "{{ ironic_conf_file }}"
+    section: inspector
+    key: auth_url
+  register: ironic_auth_url
+
+- name: Get Ironic Inspector swift password
+  become: true
+  ini:
+    path: "{{ ironic_conf_file }}"
+    section: inspector
+    key: password
+  register: ironic_password
+
+- name: Check node disks
+  node_disks:
+    nodes: "{{ lookup('ironic_nodes', wantlist=True) }}"
+    flavors: "{{ lookup('nova_flavors', wantlist=True) }}"
+    introspection_data: "{{ lookup('introspection_data',
+                            auth_url=ironic_auth_url.value,
+                            password=ironic_password.value) }}"

roles/node-disks/vars/main.yml

@@ -0,0 +1,7 @@
+---
+metadata:
+  name: Check node disk configuration
+  description: >
+    Check node disk numbers and sizes and whether root device hints are set.
+  groups:
+    - pre-deployment