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+---

+

+# it is possible to ask for variables from the user at the start

+# of a playbook run, for example, as part of a release script.

+

+- hosts: all

+  user: root

+

+# regular variables are a dictionary of keys and values

+

+  vars:

+     this_is_a_regular_var: 'moo'

+     so_is_this: 'quack'

+

+# prompted variables

+

+  vars_prompt:

+     release_version: "product release version"

+

+  tasks:

+

+# this is just a simple example to show that vars_prompt works, but

+# you might ask for a tag to use with the git module or perhaps

+# a package version to use with the yum module.

+

+  - name: imagine this did something interesting with $release_version

+    action: shell echo foo >> /tmp/$release_version

+