Creating Redis Cluster from sticks and stones: Ansible based cross-cloud deployment

First, I already had a two stopped Azure instances and ansible inventory file:

cat myazure_rm.yaml
plugin: azure_rm
include_vm_resource_groups:
- cord19demo
auth_source: cli
keyed_groups:
- prefix: tag
key: tags(base)

Two other instances I created manually by hands and corresponding inventory file:

all:hosts:children: