play_hosts

[sturban]

Hi,

I am a n00b and I am trying to create a CA playbook that first locally creates certs, keys etc (using easy-rsa's pkitool) and then deploys these to the different play_hosts. -I might be going about this the wrong way, but is there a way to register the play_hosts in a list that can then be used when I change play_hosts to be just localhost, and then when I do the deploy go back to the original play_hosts?  

---
- hosts: all
  sudo: yes
  tasks:
  - name: register current play_hosts for later
    ping:
    register: play_hosts_all    # this doesn't work obviously
 
- hosts: localhost
  connection: local
  sudo: yes
  tasks:
  - name: create keys/certs
    command : pkitool {{ item }}
    with_items: {{ play_hosts_all }}

- hosts: {{ play_hosts_all }}
  sudo: yes
  tasks:
  - name: deploy key/cert/...
    copy: src= ...  dest= ...

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[Brian Coca]

you already have a play_hosts variable with the 'current active hosts' in the play​, but it will be reset every play.

In this case I would just rewrite the play to use:

  with_items: groups['all']

[sturban]

​-The problem with 'with_items: groups['all']' is that it takes that directly from /etc/ansible/hosts rather than using whatever hosts-pattern that was supplied on the command-line - i.e. '--limit ​somehosts'

# somehosts.yml
---

- hosts: all

 sudo: yes

 vars:

   allhosts: "{{ hostvars.keys() }}"

 tasks:

 - name: all the current hosts

   debug: var=allhosts

- hosts: localhost

 connection: local

 sudo: yes

 tasks:

 - name: allhosts is reset/empty because this is a new play

  debug: var=allhosts

 - name: hosts in all-group

   debug: var="{{ item }}"

   with_items: groups['all']

$ ansible-playbook somehosts.yml --limit not-all-group

-The above playbook is apparently TWO plays and the var allhosts doesn't survive between them even though it was set in the same yml-file. -Is there a way of saving ""{{ hostvars.keys() }}""  between plays? (Other than saving it to a file). -Ideally I would like the reverse of failed_hosts as it is after first play above. 

 

[sturban]

What should current_host be replaced with so that the below only runs for the host localhost? 

---

- hosts: all

 sudo: yes

 tasks:

 - name:play_hosts

  debug: var=play_hosts
   when: current_host == "localhost"

[Brian Coca]

when: inventory_hostname == 'localhost'​

[Michael DeHaan]

"  with_items: groups['all']"

I wouldn't.   I'd use the host loop since it's already there.

- hosts: all

  tasks: 

    - local_action: ...

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