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ansible

Manage groups of computers remotely over SSH. Use the /etc/ansible/hosts file to add new groups/hosts. More information: https://www.ansible.com/.

List hosts belonging to a group:

ansible {{group}} --list-hosts

Ping a group of hosts by invoking the ping module:

ansible {{group}} -m ping

Display facts about a group of hosts by invoking the setup module:

ansible {{group}} -m setup

Execute a command on a group of hosts by invoking command module with arguments:

ansible {{group}} -m command -a '{{my_command}}'

Execute a command with administrative privileges:

ansible {{group}} --become --ask-become-pass -m command -a '{{my_command}}'

Execute a command using a custom inventory file:

ansible {{group}} -i {{inventory_file}} -m command -a '{{my_command}}'

List the groups in an inventory:

ansible localhost -m debug -a '{{var=groups.keys()}}'