ansibled : aurora : inventory (cluster), group vars for Aurora clusters, host vars for example cluster, playbook

ansibled:aurora:aurora.yml

# aurora.yml
# ---
# playbook that builds Aurora clusters and Aurora DB instances

# first run a play for any cluster hosts to create them
- hosts: aurora.cluster
  environment:
    AWS_ACCESS_KEY_ID: "{{ aws_access_key }}"
    AWS_SECRET_ACCESS_KEY: "{{ aws_secret_key }}"
    AWS_REGION: "{{ aws_region }}"
  tasks:

    - import_tasks: tasks/vpc/facts.yml
    - import_tasks: tasks/aurora/setup.subnet-group.yml
    - import_tasks: tasks/aurora/setup.parameter-groups.yml
    - import_tasks: tasks/aurora/setup.cluster.yml

ansibled:aurora:group_vars:aurora.cluster.yml

# group_vars/aurora.cluster.yml
# ---
# default variables for hosts in the group for Aurora clusters

aurora_cluster_port: 3306

aurora_cluster_security_group_ids:
  - "{{ vpc_security_group_ids['vpc'] }}"

aurora_cluster_availability_zones:
  - "{{ aws_region }}a"
  - "{{ aws_region }}b"
  - "{{ aws_region }}c"
  
aurora_cluster_subnet_ids:
  - "{{ vpc_subnet_ids['private-a'] }}"
  - "{{ vpc_subnet_ids['private-b'] }}"
  - "{{ vpc_subnet_ids['private-c'] }}"

ansibled:aurora:host_vars:cluster.aurora.ansibled

# host_vars/cluster.aurora.ansibled.yml
# ---
# specific variables for the "auroradb.ansibled" host

aurora_cluster_name: ansibled-aurora-cluster
aurora_cluster_dns: auroradb.{{ vpc_dns_zone }}

# credentials for the master user of our db cluster -- password (ansibled-db-password) encrypted with Ansible Vault
aurora_cluster_username: ansibled_db_user
aurora_cluster_password: !vault |
          $ANSIBLE_VAULT;1.1;AES256
          63313164666335343165616234663938376539393163336233336535623831383135393731393938
          6561346464306536303161303261363334303566616663390a336636623566333737363830316335
          30636161396231646130353939373236353833313164353462646535646432623939343937346438
          3635303438343963660a323534613431643465316630353735663437333430393232316636313364
          36383330363532363963666432313262623134366465333532623865356139376161

ansibled:aurora:hosts.inventory

# hosts.inventory
# ---
# the host and group list for this example "Ansibled" project

[elasticsearch]
big.elasticsearch.ansibled
small.elasticsearch.ansibled

[aurora.cluster]
cluster.aurora.ansibled

[vpc]
vpc.ansibled

[project.ansibled:children]
vpc
aurora.cluster
elasticsearch