DOT_IPV6 environment variable added, refers to #88

internal/params/dns.go

@@ -116,3 +116,9 @@ func (p *paramsReader) GetDNSOverTLSPrivateAddresses() (privateAddresses []strin
 	}
 	return privateAddresses
 }
+
+// GetDNSOverTLSIPv6 obtains if Unbound should resolve ipv6 addresses using ipv6 DNS over TLS
+//  servers from the environment variable DOT_IPV6
+func (p *paramsReader) GetDNSOverTLSIPv6() (ipv6 bool, err error) {
+	return p.envParams.GetOnOff("DOT_IPV6")
+}

internal/params/params.go

@@ -26,6 +26,7 @@ type ParamsReader interface {
 	GetDNSAdsBlocking() (blocking bool, err error)
 	GetDNSUnblockedHostnames() (hostnames []string, err error)
 	GetDNSOverTLSPrivateAddresses() (privateAddresses []string)
+	GetDNSOverTLSIPv6() (ipv6 bool, err error)
 
 	// Firewall getters
 	GetExtraSubnets() (extraSubnets []net.IPNet, err error)