Difference between revisions of "Ansible-inventory"

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{{lowercase}}
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<code>[[ansible-inventory --list]]</code>
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== Basic operations with your inventory ==
 
== Basic operations with your inventory ==
 
* List managed hosts:
 
* List managed hosts:
:: <code> ansible all --list-hosts</code>
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:: <code>[[ansible all --list-hosts]]</code>
 
:: <code> ansible YOUR_GROUP --list-hosts</code>
 
:: <code> ansible YOUR_GROUP --list-hosts</code>
 
:: <code> [[ansible-inventory --graph]]</code>  
 
:: <code> [[ansible-inventory --graph]]</code>  
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::<code>ansible localhost -m debug -a 'var=groups.keys()'</code>
 
::<code>ansible localhost -m debug -a 'var=groups.keys()'</code>
 
::<code>ansible localhost -m debug -a 'var=groups'</code>
 
::<code>ansible localhost -m debug -a 'var=groups'</code>
 
  
 
== Inventory of managed nodes ==
 
== Inventory of managed nodes ==
Line 48: Line 50:
  
 
== Help ==
 
== Help ==
<pre>
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* <code>[[ansible-inventory --help]]</code>
ansible-inventory
 
usage: ansible-inventory [-h] [--version] [-v] [-i INVENTORY] [--vault-id VAULT_IDS]
 
                        [--ask-vault-pass | --vault-password-file VAULT_PASSWORD_FILES] [--playbook-dir BASEDIR] [--list]
 
                        [--host HOST] [--graph] [-y] [--toml] [--vars] [--export] [--output OUTPUT_FILE]
 
                        [host|group]
 
 
 
positional arguments:
 
  host|group
 
 
 
optional arguments:
 
  --ask-vault-pass      ask for vault password
 
  --export              When doing an --list, represent in a way that is optimized for export,not as an accurate representation
 
                        of how Ansible has processed it
 
  --output OUTPUT_FILE  When doing --list, send the inventory to a file instead of to the screen
 
  --playbook-dir BASEDIR
 
                        Since this tool does not use playbooks, use this as a substitute playbook directory.This sets the
 
                        relative path for many features including roles/ group_vars/ etc.
 
  --toml                Use TOML format instead of default JSON, ignored for --graph
 
  --vars                Add vars to graph display, ignored unless used with --graph
 
  --vault-id VAULT_IDS  the vault identity to use
 
  --vault-password-file VAULT_PASSWORD_FILES
 
                        vault password file
 
  --version            show program's version number, config file location, configured module search path, module location,
 
                        executable location and exit
 
  -h, --help            show this help message and exit
 
  -i INVENTORY, --inventory INVENTORY, --inventory-file INVENTORY
 
                        specify inventory host path or comma separated host list. --inventory-file is deprecated
 
  -v, --verbose        verbose mode (-vvv for more, -vvvv to enable connection debugging)
 
  -y, --yaml            Use YAML format instead of default JSON, ignored for --graph
 
 
 
Actions:
 
  One of following must be used on invocation, ONLY ONE!
 
 
 
  --graph              create inventory graph, if supplying pattern it must be a valid group name
 
  --host HOST          Output specific host info, works as inventory script
 
  --list                Output all hosts info, works as inventory script
 
  
Show Ansible inventory information, by default it uses the inventory script JSON format
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== Related ==
ERROR! No action selected, at least one of --host, --graph or --list needs to be specified.
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* <code>[[/etc/ansible/hosts]]</code>
</pre>
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* <code>[[ansible-playbook -i]]</code>
  
 
== See also ==
 
== See also ==
 +
* {{ansible-inventory}}
 
* {{ansible}}
 
* {{ansible}}
  
  
 
[[Category:Ansible]]
 
[[Category:Ansible]]

Latest revision as of 08:58, 19 August 2022

ansible-inventory --list

Basic operations with your inventory[edit]

  • List managed hosts:
ansible all --list-hosts
ansible YOUR_GROUP --list-hosts
ansible-inventory --graph
ansible-inventory --list
To filter just one group of host: ansible-inventory --list | jq '.["YOUR_GROUP_NAME"]'
  • List defined groups
ansible localhost -m debug -a 'var=groups.keys()'
ansible localhost -m debug -a 'var=groups'

Inventory of managed nodes[edit]

https://www.digitalocean.com/community/tutorials/how-to-manage-multistage-environments-with-ansible Inventory is defined in /etc/ansible/hosts file. It allows you to define your managed hosts by hostname or IP address, and group them, such as "my_webservers_group" in our example in INI format.

Groups of groups, hierarchies, is also supported using (:children) keyword: [YOUR_NEW_GROUP_OF_GROUPS:children] [1]

#This is a example of a host configuration file. You can use # to include your comments on hosts file

foo_server.example.com
192.168.6.1
bar_server.example.com

[my_webservers_group]
foo5.example.com
bar6.example.com

[my_dbservers_group]
onedb1.example.com
twodb.example.com

#Example of a server alias on standard Ansible port
my_local_defined_hostname ansible_host=192.0.2.50

#Example of a server alias on a non standard Ansible port

my_jumper_server_alias ansible_host=192.0.2.50 ansible_port=5555 

You can also read Ansible best practices[2]

Activities[edit]

Help[edit]

Related[edit]

See also[edit]

  • https://www.digitalocean.com/community/tutorials/how-to-manage-multistage-environments-with-ansible
  • http://docs.ansible.com/ansible/latest/user_guide/playbooks_best_practices.html
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