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Summary

  • Ansible variables help you reuse values across files in an Ansible project.

  • You can take advantage of inventory groups and the group_vars/ and host_vars/ directories to improve project maintainability.

  • Connection variables, such as ansible_connection and ansible_network_os, control how Ansible connects to a managed node.

  • The register keyword captures the output of a task in a variable.

  • Ansible facts are information about managed nodes that are stored in variables.

  • If the gather_facts keyword is set to true, then Ansible tries to automatically detect the network platform for each managed node and gather a minimal set of facts. You can use *_facts resource modules to gather facts for your managed network nodes. For example, use the cisco.ios.ios_facts module for Cisco IOS or IOS XE managed nodes, or the junipernetworks.junos.junos_facts module for Juniper Junos managed nodes.

  • Job template surveys help users to launch jobs with custom variable settings.

  • You can use filters in Jinja2 expressions and templates to format, transform, and parse data. You can apply multiple filters sequentially in the same expression.

  • The ansible.utils.ipaddr filter can process network address data into various output formats.

Revision: do457-2.3-7cfa22a