stopping daemons before apt-get remove?

[Kevin Burton]

I need the opposite of notify.

Basically, I have a 'foo-off' role to turn services / daemons off for a specific host.

So if foo is the service, I want to stop foo , then apt-get remove it.

- service: name=foo state=stopped

... because the second time it's run the daemon isn't present because the package is removed.

So what I need is kind of a notify that runs BEFORE a task.

So something like

- name: apt-get remove foo

  apt: name=foo state=absent

  before:

    - stop foo

... is this possible? I guess I could stat the init script first but that adds more complexity. 

[Dan Vaida]

I'd construct a list var with the packages names and pass it to two tasks: first one would stop and disable the services and the second one would remove the packages.

Some packages are stopping the daemons as part of the uninstall/purge, some don't.

You could also do a 'dpkg-query -L <packagename>', save that in a list, do a 'apt-get remove --purge <packagename>' and then call the file module with state=absent and ignore_errors: True to ingest the previous list.

Not what you were expecting but it's simpler than stat'ing the init file :)

[Tom Bamford]

You could first check if the package is installed and register a variable to that effect.

- shell: dpkg -l foo
  changed_when: False
  failed_when: False
  register: foo_installed

- service: name=foo enabled=no state=stopped
  when: foo_installed.rc == 0

​

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