Setting host entries and grains

In this recipe, we will continue with the general administration tasks and look at some more tasks that can be done efficiently with Salt. We will look at how to populate the system hosts file with entries for host lookup and how to populate minions with custom grains.

How to do it...

1. Configure a minion in the staging environment called stgdc2dbs01. Do not configure any custom grains on the minion.

2. Create a new state in the staging environment called hostconfig.

3. Create and edit /opt/salt-cookbook/staging/hostconfig/hosts.sls to have the following entries:

   ntp-server:
     host.present:
       - ip: 192.168.0.10

4. Create and edit /opt/salt-cookbook/staging/hostconfig/grains.sls to have the following entries:

   location:
     grains.present:
       {% if grains['fqdn'][3:6] == "dc1" %}
       - value: dc1
       {% elif grains['fqdn'][3:6] == "dc2" %}
       - value: dc2
       {% endif %}
   
   server_type:
     grains.present:
       {% if grains['fqdn'][6:9] == "app" %}
       - value: app
       {% elif grains...