Use defaults.yaml and osmap.yaml

postfix/defaults.yaml

@@ -2,11 +2,11 @@
 # vim: ft=yaml
 
 postfix:
-    aliases_file: /etc/aliases
-    config_path: /etc/postfix
-    package: postfix
-    postsrsd_pkg: postsrsd
-    postgrey_pkg: postgrey
-    root_grp: root
-    service: postfix
-    xbin_prefix: /usr
+  aliases_file: /etc/aliases
+  config_path: /etc/postfix
+  package: postfix
+  postsrsd_pkg: postsrsd
+  postgrey_pkg: postgrey
+  root_grp: root
+  service: postfix
+  xbin_prefix: /usr

postfix/map.jinja

 # -*- coding: utf-8 -*-
 # vim: ft=jinja
 
-{%- macro deep_merge(a, b) %}
-{#-     This whole `'dict' in x.__class__.__name__` mess is a
-        workaround for the missing mapping test in CentOS 6's
-        ancient Jinja2, see #193  #}
-{%-     for k,v in b.iteritems() %}
-{%-         if v is string or v is number %}
-{%-             do a.update({ k: v }) %}
-{%-         elif 'dict' not in v.__class__.__name__ %}
-{%-             if a[k] is not defined %}
-{%-                 do a.update({ k: v }) %}
-{%-             elif a[k] is iterable and 'dict' not in a[k].__class__.__name__ and
-                a[k] is not string %}
-{%-                 do a.update({ k: v|list + a[k]|list}) %}
-{%-             else %}
-{%-                 do a.update({ k: v }) %}
-{%-             endif %}
-{%-         elif 'dict' in v.__class__.__name__ %}
-{%-             if a[k] is not defined %}
-{%-                 do a.update({ k: v }) %}
-{%-             elif 'dict' in a[k].__class__.__name__ %}
-{%-                 do a.update({ k: v }) %}
-{%-             else %}
-{%-                 do deep_merge(a[k], v) %}
-{%-             endif %}
-{%-         else %}
-{%-            do a.update({ k: 'ERROR: case not contempled in merging!' }) %}
-{%-         endif %}
-{%-     endfor %}
-{%- endmacro %}
-
-
-{## Start with  defaults from defaults.yaml ##}
-{% import_yaml "postfix/defaults.yaml" as default_settings %}
-
-{##
-Setup variable using grains['os_family'] based logic, only add key:values here
-that differ from whats in defaults.yaml
-##}
-{% set osrelease = salt['grains.get']('osrelease') %}
-{# set salt_release = salt['pillar.get']('salt:release', 'latest') #}
-{# set postfix = salt['grains.filter_by'](#}
-{% set os_family_map = salt['grains.filter_by']({
-    'Debian': {
-        'policyd_spf_pkg': 'postfix-policyd-spf-python',
-        'pcre_pkg': 'postfix-pcre',
-        'mysql_pkg': 'postfix-mysql',
-    },
-    'Gentoo': {
-        'package': 'mail-mta/postfix',
-        'policyd_spf_pkg': 'mail-filter/pypolicyd-spf',
-        'postgrey_pkg': 'mail-filter/postgrey',
-        'postsrsd_pkg': 'mail-filter/postsrsd',
-        'aliases_file': '/etc/mail/aliases',
-    },
-    'RedHat': {
-        'policyd_spf_pkg': 'pypolicyd-spf',
-    },
-    'Arch' : {
-        'policyd_spf_pkg': 'python-postfix-policyd-spf',
-    },
-    'FreeBSD' : {
-        'policyd_spf_pkg': 'py27-postfix-policyd-spf-python',
-        'aliases_file': '/etc/mail/aliases',
-        'xbin_prefix': '/usr/local',
-        'config_path': '/usr/local/etc/postfix',
-        'root_grp': 'wheel',
-    },
-}, merge=salt['pillar.get']('postfix:lookup')) %}
-
-{## Merge the flavor_map to the default settings ##}
-{% do deep_merge(default_settings.postfix, os_family_map) %}
-
-{## Merge in postfix:lookup pillar ##}
-{% set postfix = salt['pillar.get'](
-    'postfix',
-    default=default_settings.postfix,
-    merge=True)
+{% import_yaml "postfix/defaults.yaml" as defaults %}
+{% import_yaml "postfix/osmap.yaml" as osmap %}
+
+{% set postfix = salt['grains.filter_by'](
+    defaults,
+    merge=salt['grains.filter_by'](
+        osmap,
+        grain='os',
+        merge=salt['pillar.get']('postfix:lookup', {}),
+    ),
+    base='postfix')
 %}

postfix/osmap.yaml

+Arch:
+  policyd_spf_pkg: python-postfix-policyd-spf
+
+Debian:
+  policyd_spf_pkg: postfix-policyd-spf-python
+  pcre_pkg: postfix-pcre
+  mysql_pkg: postfix-mysql
+
+FreeBSD:
+  policyd_spf_pkg: py27-postfix-policyd-spf-python
+  aliases_file: /etc/mail/aliases
+  xbin_prefix: /usr/local
+  config_path: /usr/local/etc/postfix
+  root_grp: wheel
+
+Gentoo:
+  package: mail-mta/postfix
+  policyd_spf_pkg: mail-filter/pypolicyd-spf
+  postsrsd_pkg: mail-filter/postsrsd
+  postgrey_pkg: mail-filter/postgrey
+  aliases_file: /etc/mail/aliases
+
+RedHat:
+  policyd_spf_pkg: pypolicyd-spf