local_action when unreachable.

[William McKenzie]

Seems like this should be pretty simple, but I can't seem to find a way to do it. Is there some way to perform a local_action whenever a target is unreachable? I just want to post to a slack channel if ping fails.

~Bill

[Nick Kakouros]

You could probably do this with sth like this:

(in a playbook)

- host: unreachable_host

  gather_facts: false

  pre_tasks:

  - block:

      - name: Gathering facts

        setup:

    rescue:

      - name: local task

        debug:

          msg: .....

[William McKenzie]

Don't think so. If a host unreachable, rescue never happens.

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[William McKenzie]

OK, this works: you store the results, clear errors on hosts and look for problem children.

---

- hosts: all

 gather_facts: no

 tasks:

   - block:

      - setup:        

       register: result    

     

    - name: clearing host errors

     meta: clear_host_errors

   

   - block:

     - local_action:

         module: slack

         token: "redacted"

         msg: "Ping failed on host {{inventory_hostname}}"

     when: result.unreachable is defined

[Kai Stian Olstad]

On 04. aug. 2017 17:45, William McKenzie wrote:
> OK, this works: you store the results, clear errors on hosts and look for
> problem children.
>
>
> ---
> - hosts: all
> gather_facts: no
> tasks:
> - block:
> - setup:
> register: result
>
> - name: clearing host errors
> meta: clear_host_errors
>
> - block:
> - local_action:
> module: slack
> token: "redacted"
> msg: "Ping failed on host {{inventory_hostname}}"
> when: result.unreachable is defined

It will only work if at least one host is reachable, but that's probably
good enough.

By the way, you don't need your two block: since they only have one task
each.

--
Kai Stian Olstad

[William McKenzie]

Thanks. Yes, I had the blocks there because I had been playing with the rescue approach earlier.