postfix.fact.j2

{#
    Abusing Jinja2 templates 101: Postfix local facts

    This template manages contents of /etc/ansible/facts.d/postfix.fact
    and allows to configure Postfix ba multiple separate roles using
    dependency variables. Configuration will be stored and preserved
    idempotently between ansible-playbook runs.

    Recognized variables:
      - postfix_dependency_lists: hash variable which defines lists of values
        to set for specified Postfix configuration option
      - postfix_dependency_maincf: list of options to enable in Postfix when
        specified capabilities are enabled
#}
{% set postfix_tpl_local_capabilities_result = []                                     %}
{% for capability in postfix                                                          %}
{%   if postfix_tpl_local_capabilities_result.append(capability)                      %}{% endif %}
{% endfor                                                                             %}
{% set postfix_tpl_local_lists_result = {}                                            %}
{% set postfix_tpl_seen_local_lists = []                                              %}
{% if (ansible_local is defined and ansible_local) and
      (ansible_local.postfix is defined and ansible_local.postfix) and
      (ansible_local.postfix.lists is defined and ansible_local.postfix.lists)        %}
{%   for fact_key, fact_values in ansible_local.postfix.lists.iteritems()             %}
{%     set postfix_tpl_local_list = []                                                %}
{%     for element in fact_values                                                     %}
{%       if postfix_tpl_local_list.append(element)                                    %}{% endif %}
{%     endfor                                                                         %}
{%     if postfix_dependent_lists is defined and postfix_dependent_lists              %}
{%       if fact_key in postfix_dependent_lists.keys()                                %}
{%         for new_element in postfix_dependent_lists[fact_key]                       %}
{%           if new_element is mapping                                                %}
{%             if (new_element.capability is defined and new_element.capability) and
                  (new_element.capability in postfix)                                 %}
{%               if new_element.list is defined and new_element.list                  %}
{%                 for x in new_element.list                                          %}
{%                   if x not in postfix_tpl_local_list                               %}
{%                     if postfix_tpl_local_list.append(x)                            %}{% endif %}
{%                   endif                                                            %}
{%                 endfor                                                             %}
{%               endif                                                                %}
{%             elif (new_element.no_capability is defined and new_element.no_capability) and
                    (new_element.no_capability not in postfix)                        %}
{%               if new_element.list is defined and new_element.list                  %}
{%                 for x in new_element.list                                          %}
{%                   if x not in postfix_tpl_local_list                               %}
{%                     if postfix_tpl_local_list.append(x)                            %}{% endif %}
{%                   endif                                                            %}
{%                 endfor                                                             %}
{%               endif                                                                %}
{%             endif                                                                  %}
{%           else                                                                     %}
{%             if new_element not in postfix_tpl_local_list                           %}
{%               if postfix_tpl_local_list.append(new_element)                        %}{% endif %}
{%             endif                                                                  %}
{%           endif                                                                    %}
{%         endfor                                                                     %}
{%         if postfix_tpl_seen_local_lists.append(fact_key)                           %}{% endif %}
{%       endif                                                                        %}
{%     endif                                                                          %}
{%     if postfix_tpl_local_lists_result.update({ fact_key: postfix_tpl_local_list }) %}{% endif %}
{%   endfor                                                                           %}
{% endif                                                                              %}
{% if (postfix_dependent_lists is defined and postfix_dependent_lists) and
      ((postfix_dependent_lists.keys() | length) > (postfix_tpl_seen_local_lists | length)) %}
{%   for list_key, list_values in postfix_dependent_lists.iteritems()                 %}
{%     if list_key not in postfix_tpl_seen_local_lists                                %}
{%       set postfix_tpl_local_list = []                                              %}
{%       for element in list_values                                                   %}
{%         if element is mapping                                                      %}
{%           if (element.capability is defined and element.capability) and
                (element.capability in postfix)                                       %}
{%             if element.list is defined and element.list                            %}
{%               for x in element.list                                                %}
{%                 if x not in postfix_tpl_local_list                                 %}
{%                   if postfix_tpl_local_list.append(x)                              %}{% endif %}
{%                 endif                                                              %}
{%               endfor                                                               %}
{%             endif                                                                  %}
{%           elif (element.no_capability is defined and element.no_capability) and
                  (element.no_capability not in postfix)                              %}
{%             if element.list is defined and element.list                            %}
{%               for x in element.list                                                %}
{%                 if x not in postfix_tpl_local_list                                 %}
{%                   if postfix_tpl_local_list.append(x)                              %}{% endif %}
{%                 endif                                                              %}
{%               endfor                                                               %}
{%             endif                                                                  %}
{%           endif                                                                    %}
{%         else                                                                       %}
{%           if element not in postfix_tpl_local_list                                 %}
{%             if postfix_tpl_local_list.append(element)                              %}{% endif %}
{%           endif                                                                    %}
{%         endif                                                                      %}
{%       endfor                                                                       %}
{%       if postfix_tpl_local_lists_result.update({ list_key: postfix_tpl_local_list }) %}{% endif %}
{%     endif                                                                          %}
{%   endfor                                                                           %}
{% endif                                                                              %}
{% set postfix_tpl_local_maincf_result = {}                                           %}
{% set postfix_tpl_seen_local_maincf = []                                             %}
{% if (ansible_local is defined and ansible_local) and
      (ansible_local.postfix is defined and ansible_local.postfix) and
      (ansible_local.postfix.maincf is defined and ansible_local.postfix.maincf)      %}
{%   for fact_key, fact_value in ansible_local.postfix.maincf.iteritems()             %}
{%     set postfix_tpl_local_value = fact_value                                       %}
{%     for entry in postfix_dependent_maincf                                          %}
{%       if (entry.param is defined and entry.param) and (entry.param == fact_key)    %}
{%         if (entry.capability is defined and entry.capability) and
              (entry.capability in postfix)                                           %}
{%           if entry.value is defined and entry.value                                %}
{%             set postfix_tpl_local_value = entry.value                              %}
{%           endif                                                                    %}
{%         elif (entry.no_capability is defined and entry.no_capability) and
                (entry.no_capability not in postfix)                                  %}
{%           if entry.value is defined and entry.value                                %}
{%             set postfix_tpl_local_value = entry.value                              %}
{%           endif                                                                    %}
{%         else                                                                       %}
{%           if entry.value is defined and entry.value                                %}
{%             set postfix_tpl_local_value = entry.value                              %}
{%           endif                                                                    %}
{%         endif                                                                      %}
{%         if postfix_tpl_seen_local_maincf.append(fact_key)                          %}{% endif %}
{%       endif                                                                        %}
{%     endfor                                                                         %}
{%     if postfix_tpl_local_maincf_result.update({fact_key: postfix_tpl_local_value}) %}{% endif %}
{%   endfor                                                                           %}
{% endif                                                                              %}
{% if (postfix_dependent_maincf is defined and postfix_dependent_maincf) and
      ((postfix_dependent_maincf | length) > (postfix_tpl_seen_local_maincf | length)) %}
{%   for entry in postfix_dependent_maincf                                            %}
{%     if (entry.param is defined and entry.param) and (entry.param not in postfix_tpl_seen_local_maincf) %}
{%       set postfix_tpl_local_value = ''                                             %}
{%       if (entry.capability is defined and entry.capability) and
            (entry.capability in postfix)                                             %}
{%         if entry.value is defined and entry.value                                  %}
{%           set postfix_tpl_local_value = entry.value                                %}
{%         endif                                                                      %}
{%       elif (entry.no_capability is defined and entry.no_capability) and
              (entry.no_capability not in postfix)                                    %}
{%         if entry.value is defined and entry.value                                  %}
{%           set postfix_tpl_local_value = entry.value                                %}
{%         endif                                                                      %}
{%       else                                                                         %}
{%         if entry.value is defined and entry.value                                  %}
{%           set postfix_tpl_local_value = entry.value                                %}
{%         endif                                                                      %}
{%       endif                                                                        %}
{%       if postfix_tpl_local_maincf_result.update({entry.param: postfix_tpl_local_value}) %}{% endif %}
{%     endif                                                                          %}
{%   endfor                                                                           %}
{% endif                                                                              %}
{
"capabilities": {{ postfix_tpl_local_capabilities_result | to_nice_json }},
"lists": {{ postfix_tpl_local_lists_result | to_nice_json }},
"maincf": {{ postfix_tpl_local_maincf_result | to_nice_json }}
}