SaltStack: install packages based on role

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I would like to install Nagios plugins based on server role. The solution below works but I’m sure there is a more elegant/recommended way to achieve the same – any help would be appreciated. I don’t like this explicit dictionary in merge statement and nested for loop.

Pillar:

nagios:
  nrpe:
    allowed_hosts: 127.0.0.1
    plugins:
      all:
        - nagios-plugins-disk
        - nagios-plugins-load
        - nagios-plugins-procs
        - nagios-plugins-swap
      db:
        - nagios-plugins-mysql

State:

{% set plugins = salt['grains.filter_by']({
'db': { 'db': salt['pillar.get']('nagios:nrpe:plugins:db') }
}, grain='role', merge={ 'all': salt['pillar.get']('nagios:nrpe:plugins:all') }) %}

nrpe_plugins_all:
  pkg.installed:
    - pkgs:
{%- for plugin in plugins.values() %}
{%- for pkg in plugin %}
    - {{ pkg }}
{%- endfor %}
{%- endfor %}

Answer

A different approach would be to use grains to identify which hosts should have nagios and various nagios plugins:

Minion Grains (/etc/salt/grains)

roles:
 - nagios
 - nagios_mysql

State Top File

base:
  'G@roles:nagios':
    - nagios/npre_install_basic
  'G@roles:nagios_mysql':
    - nagios/npre_install_mysql

Nagios State Files

npre_install_basic:
  pkg.installed:
    - pkgs:
        - nagios-plugins-disk
        - nagios-plugins-load
        - nagios-plugins-procs
        - nagios-plugins-swap
    - require:
      - pkg: nagios

Nagios State Files

npre_install_mysql:
  pkg.installed:
    - pkgs:
        - nagios-plugins-mysql
    - require:
      - pkg: nagios

Attribution
Source : Link , Question Author : HTF , Answer Author : chugadie

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