Cant call hostvars variables from a task in a role

[Leandro Reox]

Folks, 

Were dealing with some weird issue that we want to clarify, clearly were understanding something wrong

Heres is our current playbook distribution, with roles and stuff

deploy/

├── ansible.cfg

├── filter_plugins

│   ├── search_hostvars.py

│   └── search_hostvars.pyc

├── group_vars

│   ├── all

├── install_ansible.sh

├── inventory

│   └── inventory

├── openstack.yaml

├── roles

│   ├── apt-cacher

│   │   ├── defaults

│   │   │   ├── main.yaml

│   │   │   └── trackfile

│   │   ├── files

│   │   │   └── trackfile

│   │   ├── handlers

│   │   │   └── trackfile

│   │   ├── meta

│   │   │   └── trackfile

│   │   ├── tasks

│   │   │   ├── main.yaml

│   │   │   └── trackfile

│   │   ├── templates

│   │   │   ├── etc

│   │   │   │   └── apt

│   │   │   │       └── apt.conf.d

│   │   │   │           └── 000apt-cacher-ng-proxy

│   │   │   └── trackfile

│   │   ├── trackfile

│   │   └── vars

│   │       ├── main.yaml

│   │       └── trackfile


In the apt-cacher role task main.yaml we have : 

---

  - name: update apt cache

    sudo: yes

    apt:

      update_cache: yes

  - name: Display all variables/facts known for a host

    sudo: yes

    debug: var=hostvars

  - name: Configure APT to use cache server if available

    sudo: yes

    template: src=etc/apt/apt.conf.d/000apt-cacher-ng-proxy dest=/etc/apt/apt.conf.d/000apt-cacher-ng-proxy owner=root group=root mode=0644

  - name: Install apt-cacher-ng on cache server

    sudo: yes

    apt: pkg=apt-cacher-ng state=latest install_recommends=no

In this scenario hostvars is printed ok, BUT if we try to call some value INSIDE hostvars, it fails with template failed expected "," got "CHAR"  

For example    - debug: msg="{{ hostvars['rabbithost'] }}" and the KEY is present and we see it OK on on the dict when we print hostvars

What its the way to call hostvars variables from a task in a role and access the whole hostvars tree just fine ?

Best