Best way to Include Roles in tasks

[Colin Byrne]

So I used to have one fairly long main.yml playbook that was used to perform a number of similar-tasks, one of which was to install rbenv, the ruby management tool.

---

  - name: create group titled deploy

    group: name=deploy state=present

  - name: update apt-cache

    sudo: yes

    apt: update_cache=yes

  - name: create deploy user

    user: name=deploy group=deploy groups=sudo comment="Deployment User" home="/home/deploy" shell="/bin/bash" 

  - name: download rbenv

  ...  

  - name: install rbenv

  ... 

  - name: configure rbenv

  ...  

  - name: Install the kitchen sink

    action: apt name={{item}} state=present update_cache=true

    sudo: yes

    with_items:

      - libqtwebkit-dev

      - node

  -  lots of other tasks 

  ...

I found a nice galaxy role that better suits my needs for installing rbenv, and I now want to include it to run in the same order as previously, but I am confused as to how the documentation recommends to do this and the syntax (seemingly with dependencies or includes?). It is hard to decipher wether I will have to split it into three roles (the pre-rbenv, rbenv, post-rbenv) which would really seem inconvenient as the three would always be used together. I suspect this is a pretty common dilemma...

Thank you all for the help so far, this forum has really made is a pleasure learning ansible. 

[Borys Borysenko]

Hello Colin,

The most simple way I guess is just to split your playbook with pre_tasks, roles and tasks sections. Something similar to:

---

- hosts: all

  vars: []

  pre_tasks:

  - name: create group titled deploy

    group: name=deploy state=present

  - name: update apt-cache

    sudo: yes

    apt: update_cache=yes

  - name: create deploy user

    user: name=deploy group=deploy groups=sudo comment="Deployment User" home="/home/deploy" shell="/bin/bash" 

  roles:

    - external-rbenv-role

  tasks:

  - name: Install the kitchen sink

    action: apt name={{item}} state=present update_cache=true

    sudo: yes

    with_items:

     - libqtwebkit-dev

     - node

  -  lots of other tasks 

  post_tasks: []

Regards,

Borys

вторник, 29 декабря 2015 г., 2:08:37 UTC+2 пользователь Colin Byrne написал:

[Colin Byrne]

Hey, Thanks for the reply... This is already in a role though, so would calling a role from a role make sense or even work? 

Thanks, C

[chris meyers]

The only way you can invoke a role from within a role is via meta/main.yml You may not explicitly invoke a role within a role like you do tasks.