# We're deploying a Django App (written in Python) ...
# Services are - Django web app run by Gunicorn HTTP server, nginx web server, Celery task queue for long-running jobs
#              - RabbitMQ message queue is backend for Celery, Postgres database 
# We have three server environment groups ... production (real), staging (testing), vagrant (local testing) and we have two functional groupings ... web server, task queue (for long running jobs)
# Production deployment - run web app on several hosts for good performance, run task queues on several hosts for good performance
#                       - put Gunicorn, Celery, RabbitMQ, Postgres on separate servers, two Postgres hosts are primary one and replica

[production]
delaware.example.com
georgia.example.com
maryland.example.com
newhampshire.example.com
newjersey.example.com
newyork.example.com
northcarolina.example.com
pennsylvania.example.com
rhodeisland.example.com
virginia.example.com

[staging]
ontario.example.com
quebec.example.com

[vagrant]
vagrant1 ansible_ssh_host=127.0.0.1 ansible_ssh_port=2201 
vagrant2 ansible_ssh_host=127.0.0.1 ansible_ssh_port=2202 
vagrant3 ansible_ssh_host=127.0.0.1 ansible_ssh_port=2203 

[lb]
delaware.example.com

[web]
georgia.example.com
newhampshire.example.com
newjersey.example.com
ontario.example.com
vagrant1

[task]
newyork.example.com
northcarolina.example.com
maryland.example.com
ontario.example.com
vagrant2

[rabbitmq]
pennsylvania.example.com
quebec.example.com
vagrant3

[db]
rhodeisland.example.com
virginia.example.com
quebec.example.com
vagrant3

# Variables

[all:vars]
ntp_server=ntp.ubuntu.com

[production:vars]
db_primary_host={{ db.primary.host }}
db_primary_port={{ db.primary.port }}
db_replica_host={{ db.replica.host }}
db_name={{ db.name }}
db_user={{ db.user }}
db_password={{ db.password }}
rabbitmq_host={{ rabbitmq.host }}
rabbitmq_port={{ rabbitmq.port }}

[staging:vars]
db_primary_host=quebec.example.com
db_name=widget_staging
db_user=widgetuser
db_password=hbfgdgfgfdhgfdj
rabbitmq_host=quebec.example.com
rabbitmq_port=5672

[vagrant:vars]
db_primary_host=vagrant3
db_primary_port=5432
db_replica_host=virginia.example.com
db_name=widget_vagrant
db_user=widgetuser
db_password=password
rabbitmq_host=vagrant3
rabbitmq_port=5672