Ansible Playbook
https://github.com/kelseyhightower/kubernetes-the-hard-way
Structure - http://docs.ansible.com/ansible/playbooks_best_practices.html
Execute all tasks defined in the 'localhost' and 'bastion' groups
$ ansible-playbook site.yml -i inventory.py
Vault operations
$ ansible-vault edit vault.yml --vault-password-file ../../vault_password.txt
$ ansible-vault encrypt vault.yml --vault-password-file ../../vault_password.txt
$ ansible-vault view vault.yml --vault-password-file ../../vault_password.txt
View/verify template variable are being set to correct values
$ ansible -m debug -a 'var=hostvars[inventory_hostname]' site
DNS
Host Network
0.0.0.0:5432 -> pdns_db:5432
0.0.0.0:5353 -> pdns_recursor:5353
0.0.0.0:53 -> pdns_nameserver:53
pdns_nameserver
Uses pdns_db for postgresql backend
Uses pdns_recursor when dns cache misses occur