---

 - hosts: localhost
   connection: local
   tasks:

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

   - name: Check if jinja 2.8 is installed locally
     debug: msg={{(dummy|selectattr("id", "equalto", "hello")|first)['value']}}
     vars:
       dummy:
       - id: hello
         value: Hello World
     register: check_jinja28
     ignore_errors: yes

   - set_fact:
       jmespath_missing: '{{ check_jmespath|failed }}'
       jinja28_missing: '{{ check_jinja28|failed }}'
       on_rhel7: '{{ ansible_distribution == ''RedHat'' and ansible_distribution_major_version|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'

   - 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/9 for more information."
     when: 'jinja28_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 or jinja28_missing) and on_rhel7'

   - name: Install PIP
     yum: name=python27-python-pip state=installed
     become: yes
     when: '(jmespath_missing or jinja28_missing) and on_rhel7'

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

   - name: Update jinja to versions 2.8
     command: 'scl enable python27 ''pip install --install-option="--install-purelib=/usr/lib/python2.7/site-packages/" jinja2'' '
     become: yes
     when: 'jinja28_missing and on_rhel7'