Add xfs-check-ftype role

This patch adds the xfs-check-ftype role created from:
- validations/check-ftype.yaml

Change-Id: Iea70b76e12cf4660c90fefe3c2025c732be8d851
Implements: blueprint validation-framework
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>

playbooks/check-ftype.yaml

@@ -0,0 +1,12 @@
+---
+- hosts: undercloud, overcloud
+  vars:
+    metadata:
+      name: XFS ftype check
+      description: >
+        Check if there is at least 1 XFS volume
+        with ftype=0 in any deployed node.
+      groups:
+        - pre-upgrade
+  roles:
+    - xfs-check-ftype

roles/xfs-check-ftype/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/xfs-check-ftype/tasks/main.yml

@@ -0,0 +1,25 @@
+---
+- name: Check if there are XFS volumes with ftype=0
+  become: true
+  shell: |
+    for dev in $(df -h | grep '/dev/' | grep -v 'tmp' | cut -d' ' -f1)
+    do
+      parseftype=$(xfs_info $dev | grep ftype=0);
+      if [[ ! -z "$parseftype" ]]; then
+        ftype="ftype=0";
+        break;
+      fi
+    done
+    echo $ftype;
+  register: ftype
+  changed_when: false
+
+- name: Check ftype
+  fail:
+    msg: >
+      XFS volumes formatted using ftype=0 are incompatible
+      with the docker overlayfs driver.
+      Run xfs_info on {{ ansible_fqdn }} and fix those volumes
+      before proceeding with the upgrade.
+  when:
+    - ftype.stdout == 'ftype=0'

roles/xfs-check-ftype/vars/main.yml

@@ -0,0 +1,8 @@
+---
+metadata:
+  name: XFS ftype check
+  description: >
+    Check if there is at least 1 XFS volume
+    with ftype=0 in any deployed node.
+  groups:
+    - pre-upgrade