Adopt playbooks for ANSIBLE_GATHER_SUBSET removal

With Ansible 2.18 ANSIBLE_GATHER_SUBSET env var and corresponding
`gather_subset` config parameter was removed in favor of
`module_defaults` parameter.

We adopt our playbooks to respect previous minimal defaults for
facts gathering, along with intorducing new
ansible variable to control it.

Without these changes all facts are being gathered by default.

Change-Id: I3377b5f623fc8ca195d91ef9f9a3af43e010a99c
Signed-off-by: Dmitriy Rabotyagov <dmitriy.rabotyagov@cleura.com>

playbooks/adjutant.yml

@@ -16,6 +16,9 @@
 - name: Gather adjutant facts
   hosts: adjutant_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/aodh.yaml

@@ -16,6 +16,9 @@
 - name: Gather aodh facts
   hosts: aodh_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/barbican.yml

@@ -16,6 +16,9 @@
 - name: Gather barbican facts
   hosts: barbican_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/blazar.yml

@@ -16,6 +16,9 @@
 - name: Gather blazar facts
   hosts: blazar_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/ceilometer.yml

@@ -16,6 +16,9 @@
 - name: Gather ceilometer facts
   hosts: ceilometer_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/ceph_install.yml

@@ -169,6 +169,9 @@
 - name: Gather ceph-osd facts
   hosts: ceph-osd
   gather_facts: "{{ osa_gather_facts | default(True) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Define discovered_interpreter_python
       ansible.builtin.set_fact:
@@ -265,6 +268,9 @@
 - name: Gather ceph-mds facts
   hosts: ceph-mds
   gather_facts: "{{ osa_gather_facts | default(True) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Define discovered_interpreter_python
       ansible.builtin.set_fact:

playbooks/ceph_nfs_install.yml

@@ -16,6 +16,9 @@
 - name: Gather ceph-nfs facts
   hosts: ceph-nfs
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Define discovered_interpreter_python
       ansible.builtin.set_fact:

playbooks/ceph_rgw_install.yml

@@ -20,6 +20,9 @@
 - name: Gather ceph-rgw facts
   hosts: ceph-rgw
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Define discovered_interpreter_python
       ansible.builtin.set_fact:

playbooks/certificate_generate.yml

@@ -15,6 +15,9 @@
 - name: Generate any extra user certificates
   hosts: "{{ openstack_pki_setup_host | default('localhost') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
   tasks:

playbooks/certificate_ssh_authority.yml

@@ -15,6 +15,9 @@
 - name: Create SSHD CA
   hosts: "{{ openstack_ssh_keypairs_setup_host | default('localhost') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
     - sshd-ca

playbooks/cloudkitty.yml

@@ -17,6 +17,9 @@
 - name: Gather cloudkitty facts
   hosts: cloudkitty_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/containers_lxc_create.yml

@@ -36,6 +36,9 @@
 - name: Gather lxc hosts facts
   hosts: "{{ lxc_host_group | default('lxc_hosts') }}"
   gather_facts: true
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 
@@ -68,6 +71,9 @@
 - name: Gather lxc containers facts
   hosts: all_lxc_containers
   gather_facts: true
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/containers_lxc_host.yml

@@ -16,6 +16,9 @@
 - name: Gather lxc hosts facts
   hosts: "{{ lxc_host_group | default('lxc_hosts') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/designate.yml

@@ -19,6 +19,9 @@
 - name: Gather designate facts
   hosts: designate_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/galera_server.yml

@@ -16,6 +16,9 @@
 - name: Gather galera facts
   hosts: galera_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       include_role:

playbooks/glance.yml

@@ -16,6 +16,9 @@
 - name: Gather glance facts
   hosts: "glance_all"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/gnocchi.yml

@@ -16,6 +16,9 @@
 - name: Gather gnocchi facts
   hosts: gnocchi_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/haproxy.yml

@@ -16,6 +16,9 @@
 - name: Gather haproxy facts
   hosts: haproxy
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/heat.yml

@@ -16,6 +16,9 @@
 - name: Gather heat facts
   hosts: heat_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/horizon.yml

@@ -16,6 +16,9 @@
 - name: Gather horizon facts
   hosts: horizon_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/infra_journal_remote.yml

@@ -16,6 +16,9 @@
 - name: Gather facts
   hosts: hosts
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/ironic.yml

@@ -16,6 +16,9 @@
 - name: Gather ironic facts
   hosts: ironic_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/journald_remote.yml

@@ -16,6 +16,9 @@
 - name: Gather facts
   hosts: hosts
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/keystone.yml

@@ -22,6 +22,9 @@
 - name: Implement openrc/clouds.yaml on the designated service host
   hosts: "{{ openstack_service_setup_host | default('localhost') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   become: true
   tags:
     - openrc
@@ -42,6 +45,9 @@
 - name: Gather keystone facts
   hosts: keystone_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/magnum.yml

@@ -19,6 +19,9 @@
 - name: Gather magnum facts
   hosts: magnum_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/manila.yml

@@ -19,6 +19,9 @@
 - name: Gather manila facts
   hosts: manila_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   serial: "{{ manila_serial | default(['1', '100%']) }}"
   tags:
     - always

playbooks/masakari.yml

@@ -16,6 +16,9 @@
 - name: Gather masakari facts
   hosts: masakari_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/memcached.yml

@@ -16,6 +16,9 @@
 - name: Gather memcached facts
   hosts: memcached
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/mistral.yml

@@ -16,6 +16,9 @@
 - name: Gather mistral facts
   hosts: mistral_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/octavia.yml

@@ -16,6 +16,9 @@
 - name: Gather octavia facts
   hosts: octavia_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/openstack_hosts_setup.yml

@@ -42,6 +42,9 @@
 - name: Gather host facts
   hosts: "{{ openstack_host_group | default('hosts') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/placement.yml

@@ -16,6 +16,9 @@
 - name: Gather placement facts
   hosts: placement_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/rabbitmq_server.yml

@@ -16,6 +16,9 @@
 - name: Gather rabbitmq facts
   hosts: "{{ rabbitmq_host_group | default('rabbitmq_all') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/rally.yml

@@ -16,6 +16,9 @@
 - name: Gather rally facts
   hosts: utility_all[0]
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/repo.yml

@@ -16,6 +16,9 @@
 - name: Gather repo facts
   hosts: repo_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/security_hardening.yml

@@ -20,6 +20,9 @@
 - name: Gather security hardening facts
   hosts: "{{ security_host_group | default('hosts') }}"
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/skyline.yml

@@ -16,6 +16,9 @@
 - name: Gather skyline facts
   hosts: skyline_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       include_role:

playbooks/swift.yml

@@ -16,6 +16,9 @@
 - name: Gather swift facts
   hosts: swift_all:swift_remote_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/swift_sync.yml

@@ -18,6 +18,9 @@
 - name: Synchronisation of swift ring and ssh keys
   hosts: swift_all:swift_remote_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   user: root
   pre_tasks:
     - name: Setup installation variables

playbooks/tacker.yml

@@ -16,6 +16,9 @@
 - name: Gather tacker facts
   hosts: tacker_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/tempest.yml

@@ -16,6 +16,9 @@
 - name: Gather tempest facts
   hosts: utility_all[0]
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/trove.yml

@@ -19,6 +19,9 @@
 - name: Gather trove facts
   hosts: trove_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

playbooks/unbound.yml

@@ -16,6 +16,9 @@
 - name: Gather unbound facts
   hosts: unbound
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/utility_host.yml

@@ -16,6 +16,9 @@
 - name: Gather utility facts
   hosts: utility_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/zookeeper.yml

@@ -16,6 +16,9 @@
 - name: Gather zookeeper facts
   hosts: zookeeper_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tags:
     - always
 

playbooks/zun.yml

@@ -16,6 +16,9 @@
 - name: Gather zun facts
   hosts: zun_all
   gather_facts: "{{ osa_gather_facts | default(true) }}"
+  module_defaults:
+    ansible.builtin.setup:
+      gather_subset: "{{ osa_gather_subset | default(lookup('ansible.builtin.env', 'ANSIBLE_GATHER_SUBSET', default='!all,min')) }}"
   tasks:
     - name: Gather additional facts
       ansible.builtin.include_role:

releasenotes/notes/default_gather_subset-6ef9d939d0fad333.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    With deprecation and removal of ``ANSIBLE_GATHER_SUBSET``, a new Ansible
+    variable ``osa_gather_subset`` was implemented to replace it.
+    ``ANSIBLE_GATHER_SUBSET`` is still respected and is used as a fallback in
+    case ``osa_gather_subset`` is not defined.