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cross-posted from: https://lemmy.ml/post/4593804

Originally discussed on Matrix.

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TLDR; Ansible handlers are added to the global namespace.

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Suppose you've got a role which defines a handler MyHandler:

 undefined

    
- name: MyHandler
  ...
  listen: "some-topic"

  

Each time you import/include your role, a new reference to MyHandler is added to the global namespace.

As a result, when you notify your handler via the topics it listens to (ie notify: "some-topic"), all the references to MyHandler will be executed by Ansible.

If that's not what you want, you should notify the handler by name (ie notify: MyHandler) in which case Ansible will stop searching for other references as soon as it finds the first occurrence of MyHandler. That