infra: use dedicated variables for balancer status

The balancer status is registered during the cephadm-adopt, rolling_update
and swith2container playbooks. But it is also used in the ceph-handler role
which is included in those playbooks too.
Even if the ceph-handler tasks are skipped for rolling_update and
switch2container, the balancer_status variable is erased with the skip task
result.

play1:
  register: balancer_status
play2:
  register: balancer_status <-- skipped
play3:
  when: (balancer_status.stdout | from_json)['active'] | bool

This leads to issue like:

The conditional check '(balancer_status.stdout | from_json)['active'] | bool'
failed. The error was: Unexpected templating type error occurred on
({% if (balancer_status.stdout | from_json)['active'] | bool %} True
{% else %} False {% endif %}): expected string or buffer.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1982054

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 3866616)

infrastructure-playbooks/rolling_update.yml

@@ -419,7 +419,7 @@
 
     - name: get balancer module status
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer status -f json"
-      register: balancer_status
+      register: balancer_status_update
       changed_when: false
       check_mode: false
 
@@ -431,7 +431,7 @@
     - name: disable balancer
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer off"
       changed_when: false
-      when: (balancer_status.stdout | from_json)['active'] | bool
+      when: (balancer_status_update.stdout | from_json)['active'] | bool
 
     - name: disable pg autoscale on pools
       command: "{{ ceph_cmd }} --cluster {{ cluster }} osd pool set {{ item.name }} pg_autoscale_mode off"
@@ -569,7 +569,7 @@
     - name: re-enable balancer
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer on"
       changed_when: false
-      when: (balancer_status.stdout | from_json)['active'] | bool
+      when: (balancer_status_update.stdout | from_json)['active'] | bool
 
     - name: set_fact container_exec_cmd_osd
       set_fact:

infrastructure-playbooks/switch-from-non-containerized-to-containerized-ceph-daemons.yml

@@ -222,7 +222,7 @@
 
     - name: get balancer module status
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer status -f json"
-      register: balancer_status
+      register: balancer_status_switch
       changed_when: false
       check_mode: false
 
@@ -234,7 +234,7 @@
     - name: disable balancer
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer off"
       changed_when: false
-      when: (balancer_status.stdout | from_json)['active'] | bool
+      when: (balancer_status_switch.stdout | from_json)['active'] | bool
 
     - name: disable pg autoscale on pools
       command: "{{ ceph_cmd }} --cluster {{ cluster }} osd pool set {{ item.name }} pg_autoscale_mode off"
@@ -423,7 +423,7 @@
     - name: re-enable balancer
       command: "{{ ceph_cmd }} --cluster {{ cluster }} balancer on"
       changed_when: false
-      when: (balancer_status.stdout | from_json)['active'] | bool
+      when: (balancer_status_switch.stdout | from_json)['active'] | bool
 
 
 - name: switching from non-containerized to containerized ceph mds