I'm trying to write a rolling-update.yml playbook that calls other 
playbooks and makes use of the serial: attribute.

It goes something like this:

rolling-update.yml:

- hosts: nonprod-app-servers
>   serial: "30%"
>   pre_tasks:
>   - name: disable node in the F5 Pool
> - include: peoplesoft.yml
>   post_tasks:
>   - name: enable node in the F5 Pool



peoplesoft.yml  playbook calls multiple roles with different host targets

- hosts: peoplesoft-nonprod-servers
>   roles:
>   - ps-common
> - hosts: nonprod-app-servers:nonprod-unixprcs-servers
>   roles:
>   - ps-tuxedo
> - hosts: nonprod-app-servers
>   roles:
>   - ps-app-domains


... and so on...


What I want is to call rolling-update.yml and target a cluster so that it 
runs through the entire rolling-update playbook on 30% of the targeted 
group at a time. However, as I understand it, there's two problems with 
this. 

A) you can't apply serial: to an included playbook and 
B) even if you could, it would be a different play and starts the next set 
of hosts before moving on to the next play.

I'm kinda hoping my only recourse isn't to explicitly call all my roles in 
the rolling-update playbook, since I have a list of 7 roles that apply to 
various parts of the infrastructure and that list is growing weekly. I'd 
prefer to just reuse the existing peoplesoft.yml playbook and call that 
from other playbooks.

Appreciate any thoughts/insight, even if only to tell me i'm hosed and to 
suck it up stop reusing the peoplesoft.yml playbook.

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