fs2bs: use match filter in selectattr()

0990ae4 changed the filter in
selectattr() from 'match' to 'equalto' but due to an incompatibility with
the Jinja2 version for python 2.7 on el7 we must stick to using 'match'
filter.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit d6745e9)

infrastructure-playbooks/filestore-to-bluestore.yml

@@ -48,7 +48,7 @@
       set_fact:
         osd_ids: "{{ osd_ids | default([]) | union(item) }}"
       with_items:
-        - "{{ ((osd_tree.stdout | default('{}') | trim | from_json).nodes | selectattr('name', 'equalto', inventory_hostname) | map(attribute='children') | list) }}"
+        - "{{ ((osd_tree.stdout | default('{}') | trim | from_json).nodes | selectattr('name', 'match', '^' + inventory_hostname + '$') | map(attribute='children') | list) }}"
 
     - name: get osd metadata
       command: "{{ ceph_cmd }} --cluster {{ cluster }} osd metadata osd.{{ item }} -f json"
@@ -355,7 +355,7 @@
           set_fact:
             osd_ids: "{{ osd_ids | default([]) + [item] }}"
           with_items:
-            - "{{ ((osd_tree.stdout | default('{}') | from_json).nodes | selectattr('name', 'equalto', inventory_hostname) | map(attribute='children') | list) }}"
+            - "{{ ((osd_tree.stdout | default('{}') | from_json).nodes | selectattr('name', 'match', '^' + inventory_hostname + '$') | map(attribute='children') | list) }}"
 
         - name: purge osd(s) from the cluster
           ceph_osd: