---

 - hosts: localhost
   connection: local
   tasks:

   - name: Check if jmespath is installed locally
     debug: msg={{dummy|json_query('@')}}
     register: check
     ignore_errors: yes
     vars:
       dummy: Hello World

   - set_fact:
       jmespath_missing: '{{ check|failed }}'
       on_rhel7: '{{ ansible_distribution == ''RedHat'' and ansible_lsb.major_release|int == 7 }}'

   - debug:
       msg: "jmespath is not installed on the machine that runs the playbooks"
     when: jmespath_missing

   - fail:
       msg: "This playbook can install by itself the missing packages on RHEL 7.x but we are not on such system (detected OS : {{ansible_distribution}} {{ansible_distribution_version}}). See https://github.com/nmasse-itix/OpenShift-Lab/issues/5 for more information."
     when: 'jmespath_missing and not on_rhel7'

   - name: Enable the RHSCL repo
     command: subscription-manager repos --enable rhel-server-rhscl-7-rpms
     become: yes
     when: 'jmespath_missing and on_rhel7'

   - name: Install PIP
     yum: name=python27-python-pip state=installed
     become: yes
     when: 'jmespath_missing and on_rhel7'

   - name: Install JMESPATH and update Jinja
     command: 'scl enable python27 ''pip install --install-option="--install-purelib=/usr/lib/python2.7/site-packages/" jinja2 jmespath'' '
     become: yes
     when: 'jmespath_missing and on_rhel7'