Inventory

What’s inventory?

a list of managed nodes, or hosts, that Ansible deploys and configures

Where’s inventory?

Option in config.cfg

Set file or directory name for option ‘inventory’

Environment Variable

ANSIBLE_INVENTORY

Option in command line

ansible all -m ping -i myInventory/prod.yml -i myInventory/test.yml

Target two inventory files

Inventory files must be in current directory, or use absolute path

How to build inventory?

Formats

INI

YAML

Groups

Default groups

all

ungrouped

Defined groups

Hosts in single defined group

Hosts in multiple defined groups

Parent/Children

Pattern for hosts

Add hosts as a range

numeric range

Specify a stride

alphabetic range