processors:
  - dns:
      type: reverse
      success_cache:
        min_ttl: 2000m

DEBUG	[processor.dns]	dns/dns.go:67	DNS processor config: {CacheConfig:{SuccessCache:{TTL:0s MinTTL:1m0s InitialCapacity:1000 MaxCapacity:10000} FailureCache:{TTL:1m0s MinTTL:1m0s InitialCapacity:1000 MaxCapacity:10000}} Nameservers:[] Timeout:500ms Type:reverse Action:append TagOnFailure:[] Fields:null Transport:udp reverseFlat:map[]}	{"instance_id": 1}

// Config defines the configuration options for the DNS processor.
type Config struct {
	CacheConfig
	Nameservers  []string      `config:"nameservers"`
	...
}

// CacheConfig defines the success and failure caching parameters.
type CacheConfig struct {
	SuccessCache CacheSettings `config:"success_cache"`
	FailureCache CacheSettings `config:"failure_cache"`
}

// Config defines the configuration options for the DNS processor.
type Config struct {
	SuccessCache CacheSettings `config:"success_cache"`
	FailureCache CacheSettings `config:"failure_cache"`
	Nameservers  []string      `config:"nameservers"`
	...
}