Generate static ansible inventory

[Hugh Saunders]

The dynamic inventory script reads a set of environment files and generates json for ansible to interpret. This JSON not very human readable.

I propose that we add an option to the dyanmic inventory script for generating a static ansible inventory from our environment files. This way people can read the generated inventory, check that it is correct and then use it as a standard static inventory.

[Bjoern (bjoern-t)]

I think this is covered by using the inventory-manager:

/opt/os-ansible-deployment/scripts# ./inventory-manage.py -f /etc/rpc_deploy/rpc_inventory.json -l
+----------------+---------------+---------------------+----------------------+----------------+------------------+-----------------------------+
| container_name | is_metal | component | physical_host | tunnel_address | ansible_ssh_host | container_types |
+----------------+---------------+---------------------+----------------------+----------------+------------------+-----------------------------+
| infra01 | True | None | infra01 | None | 172.29.236.51 | infra01_containers |
| infra02 | True | None | infra02 | None | 172.29.236.52 | infra02_containers |

[Jesse Pretorius (jesse-pretorius)]

The group names are now output on demand, making it a little more readable: https://review.openstack.org/224977

[Jesse Pretorius (jesse-pretorius)]

For the purpose of generating a static inventory in a form that's understood by someone used to normal inventories in Ansible, I think that this is useful.