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Including/Importing an Ansible role w/ handlers more than once
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:
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> > - name: MyHandler > ... > listen: "some-topic" >
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> Each time you import/include your role, a new reference to MyHandler is added to the global namespace.
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> 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.
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> 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 means MyHandler will be executed only once.