Ansible Playbooks

Order of vars

• inventory vars
• vars_files in playbook (outside of tasks)
• vars in tasks after os fact discovery

Set host connection to winrm on windows without ssh

And change auth creds via include vars by group name var

You could use template env vars with jinja template too

https://docs.ansible.com/ansible/latest/user_guide/playbooks_intro.html

https://docs.ansible.com/ansible/latest/cli/ansible-playbook.html

https://docs.ansible.com/ansible/latest/user_guide/intro_patterns.html

ansible-playbook -i 127.0.0.1
ansible-playbook site.yml --limit datacenter2 -f 10

Using if or lookup from env in jinja vars

---
- name: -Test-
  hosts: local
  vars:
    my_group_var: False
#    my_group_var: True

  tasks:

  - name: Prepare vars file from template.
    template: src=/tmp/vars.yaml.j2
              dest=/tmp/vars.yaml

  - name: Include vars
    include_vars: "/tmp/vars.yaml"

The content of example jinja template /tmp/vars.yaml.j2 is:

{% if my_group_var %}                                                                                                                                                                                             
test:                                                                                                                                                                                                             
   var1: value                                                                                                                                                                                                    
   var2: value                                                                                                                                                                                                    
{% else %}                                                                                                                                                                                                        
test:                                                                                                                                                                                                             
   var1: other_value                                                                                                                                                                                              
   var2: other_value                                                                                                                                                                                              
{% endif %}

---
- hosts: "{{hosts}}"
  vars:
    scripts:
      - run.pl
  tasks:
    - name: win_stat
      with_items: scripts
      win_stat: path="D:\scripts\{{item}}"
      register: "win_result"
      when: "'windows' in group_names"
    - name: other_stat
      with_items: scripts
      stat: path="/usr/local/bin/{{item}}"
      register: "other_result"
      when: "'windows' not in group_names"
    - debug: var=win_result
    - debug: var=other_result
    - with_items: "{{ win_result.results }}"
      debug: msg="{{item.item}}"
      when: "not (item.skipped | default(false))"
    - with_items: "{{ other_result.results}}"
      debug: msg="{{item.item}}"
      when: "not (item.skipped | default(false))"