Ansible "task logic" with multiple hosts?

Question

I am using ansible to do the following:

---
# 1. Target localhost to spin up a cloud server
- name: Spinup droplet
  hosts: local
  connection: local
  tasks:
    - name: Include spinup tasks from computation droplet role
      include_tasks: ../roles/computation_droplet/tasks/spinup.yml

#2. Target the cloud server to run a script
- name: Run computation script
? hosts: computation_host
? remote_user: root
  tasks:
    - name: Include computation script tasks
  ? ? include_tasks: ../roles/script/tasks/compute.yml

#3. Target a second cloud server to move the script result onto it
- name: Move result onto file server
? hosts: file_server
? remote_user: root
? tasks:
? ? - copy:
? ? ? ? src: /tmp/fetched/computation_droplet/root/computation/output/out.csv
? ? ? ? dest: /root/out.csv

#4. Target localhost to destroy the cloud server
- name: Spindown droplet
  hosts: local
  connection: local
  tasks:
    - name: Include spindown tasks from computation droplet role
      include_tasks: ../roles/computation_droplet/tasks/spindown.yml

This all works fine, but I want to have step 4 run even if there is a failure in steps 2 or 3, and none of the solutions seem to work.

I can't seem to fit this into a block (to use always:) because a block requires a task list. And I have to have all these steps in separate plays because they target different hosts. I can't run tasks within a single block targeting different hosts, correct?

The same seems to apply to doing force_handlers: true -- that can only be used as part of the tasks: logic, which I can't seem to use because of the different target hosts.

Is it possible to always run a play as a cleanup step even in the event of failure in a prior play? Or is it possible to have different tasks in a single task list target different hosts? Either one would get me what I'm trying to do, but I can't seem to find any examples of either.

Thanks a lot for any tips.

Answer 1

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