Merge pull request #24 from ajpauwels/add-ipv6-support

fix: adds support for ipv6 addresses

Author: blind-oracle

README.md

@@ -46,6 +46,8 @@ listen: 0.0.0.0:8080
 listen_pprof: 0.0.0.0:7008
 # Where to send the modified requests (Cortex)
 target: http://127.0.0.1:9091/receive
+# Whether to enable querying for IPv6 records
+enable_ipv6: false
 
 # Authentication
 auth:

config.go

@@ -14,7 +14,8 @@ type config struct {
 	Listen      string
 	ListenPprof string `yaml:"listen_pprof"`
 
-	Target string
+	Target     string
+	EnableIPv6 bool `yaml:"enable_ipv6"`
 
 	LogLevel          string `yaml:"log_level"`
 	Timeout           time.Duration

config.yml

@@ -2,6 +2,7 @@ listen: 0.0.0.0:8080
 listen_pprof: 0.0.0.0:7008
 
 target: http://127.0.0.1:9091/receive
+enable_ipv6: false
 
 auth:
   egress:

processor.go

@@ -65,6 +65,7 @@ func newProcessor(c config) *processor {
 		WriteTimeout:       c.Timeout,
 		MaxConnWaitTimeout: 1 * time.Second,
 		MaxConnsPerHost:    64,
+		DialDualStack:      c.EnableIPv6,
 	}
 
 	if c.Auth.Egress.Username != "" {