Bootstrap FreeKB - Ansible - Defining your inventory
Ansible - Defining your inventory

Updated:   |  Ansible articles

Tasks are run against target servers. Some Ansible documentation refers to the target servers as "hosts".

 

 

After a clean install of Ansible, the default hosts file is /etc/ansible/hosts. The default hosts file is completely commented out. If you were to issue command ansible all -m ping, the following would be displayed.

[WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'

 

Ansible uses inventory plugins to parse inventory. For example, ansible.cfg may have the following.

[inventory]
enable_plugins = host_list, yaml, ini

 

For example, the yaml inventory_plugin allows you to define target servers in a YAML default hosts file or your own inventory file. For example, let's say you have an default hosts file or your own inventory file named inventory.yml that contains target systems, perhaps something like this.

all:
  hosts:
    server1.example.com:
    server2.example.com:
    server3.example.com:
    server4.example.com:

 

Here is how you can run the example.yml playbook using the target systems specified in inventory.yml.

ansible-playbook example.yml --inventory /path/to/inventory.yml

 

There are multiple ways to define your inventory:

 




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