gistfile1.yml

---
- name: install elasticsearch prerequisties
  apt: pkg=openjdk-7-jre-headless state=installed
- name: download deb file
  get_url: url={{ elasticsearch.url }}/{{ elasticsearch.debian_package }} dest=/tmp
- name: install elasticsearch
  shell: "dpkg -i /tmp/{{ elasticsearch.debian_package }}"
- name: remove the debian package
  file: dest=/tmp/{{ elasticsearch.debian_package }}

] Is there any canonical way to make this task idempotent? https://gist.github.com/psykidellic/8247707
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[14:25:46] psykidellic: if you make the dest a file, rather than a dir, it will only download the file when it doesn't exist
[14:26:15] psykidellic: and you can then register a var there, and the the next set of tasks, you can do: when: registered_var|changed
[14:26:36] I see. This means though I have to keep the .deb file around in the location.
[14:26:37] ah, but I see you are removing the "tmp" file
[14:26:41] Yeah :)
[14:26:47] I mean its no big deal to leave it around…..
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[14:26:55] but then i fear somebody deletes the file
[14:26:58] and runs the provision again.
[14:27:01] psykidellic: your other option, is to add other checks, such as a 'stat' module call, to check for a file provided by the package
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[14:27:05] or something like that
[14:27:12] and register a var then, and only act when you need to
[14:27:17] based on some logic you define
[14:27:19] Okay.
[14:27:25] I will look into the second option.