[Puppet Users] Parameterized classes override of parameter

[Jos Houtman]

Hi group,

I expect parameterized classes to behave simular to types in relation
to overrides, but obviously this is not the case.
Could someone what is should then expect from overriding an parameterized class.

what I have is:

class dns(dns_servers) {
  file{'/etc/resolv.conf':
      content => template("dns/resolv.conf.erb")
  }
}

class role::init {
   class{'dns':
     dns_servers => ['10.100.100.1']
   }
}

class role::loadbalancer inherits role {
   Class['dns'] {
     dns_servers => ['127.0.0.1']
   }
}

node loadbalancer1 {
   include role::loadbalancer
}

I expected resolv.conf to have the 127.0.0.1 address, but it has the
10.100.100.1 address.

Could someone explain to me the rules around parameterized class inheritence.
And if using inheritence to override general use cases for very common
modules is not the way, should all this logic then be put into our
extlookup or something like hiera?


Jos

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