Fix glance_nfs_client setting

glance_nfs_client adds 2 fstab entries, with then handler entry being
incorrectly ordered (src and name are the wrong way around).

This patch removes the redundant handler and moves the existing fstab
task to use the "mount" module which will add the entry to fstab and
ensure the filesystems are mounted.

Additionally this fixes a documentation bug where an incorrect variable
is referenced (glance_nfs_mounts).

Change-Id: I6e0f964d4279800d31119f380a239e2c4ae61cb5
Fixes-Bug: #1477081

playbooks/roles/os_glance/defaults/main.yml

@@ -117,9 +117,9 @@ glance_policy_dirs: policy.d
 
 ## Define nfs information for glance. When the glance_nfs_client dictionary is
 ## defined it will enable nfs shares as mounted directories. The
-## ``glance_nfs_mounts`` value is a list of dictionaries that must be filled
+## ``glance_nfs_client`` value is a list of dictionaries that must be filled
 ## out completely to enable the persistent NFS mounts.
-# glance_nfs_mounts:
+# glance_nfs_client:
 #   - server: "127.0.0.1"                   ## Hostname or IP address of NFS Server
 #     remote_path: "/images"                ## Remote path from the NFS server's export
 #     local_path: "/var/lib/glance/images"  ## Local path on machine

playbooks/roles/os_glance/handlers/main.yml

@@ -31,12 +31,3 @@
     state: "restarted"
     pattern: "{{ item }}"
   with_items: glance_service_names
-
-- name: Glance mount nfs
-  mount:
-    name: "{{ item.server }}:{{ item.remote_path }}"
-    src: "{{ item.local_path }}"
-    fstype: "{{ item.type }}"
-    opts: "{{ item.options }}"
-    state: "present"
-  with_items: glance_nfs_client

playbooks/roles/os_glance/tasks/glance_post_install.yml

@@ -94,15 +94,16 @@
     - glance-nfs
     - glance-nfs-local-path
 
-- name: Create nfs mounts
-  lineinfile:
-    dest: "/etc/fstab"
-    line: "{{ item.server }}:{{ item.remote_path }}  {{ item.local_path }}  {{ item.type }}  {{ item.options }}  0  0"
-    backup: "true"
+- name: Glance mount nfs
+  mount:
+    name: "{{ item.local_path }}"
+    src: "{{ item.server }}:{{ item.remote_path }}"
+    fstype: "{{ item.type }}"
+    opts: "{{ item.options }}"
+    state: "mounted"
   with_items: glance_nfs_client
   when: >
     glance_nfs_client is defined
-  notify: Glance mount nfs
   tags:
     - glance-nfs
-    - glance-nfs-fstab
+    - glance-nfs-local-path