New whatismydns feature (#29)

test/docker-compose.yml

@@ -0,0 +1,35 @@
+services:
+  whatismyip:
+    build:
+      context: ../
+      target: dev
+    ports:
+      - "8000:8000"
+      - "8001:8001"
+      - "8001:8001/udp"
+      - "53531:53/udp"
+    command:
+      - "-geoip2-city"
+      - "/GeoIP2-City-Test.mmdb"
+      - "-geoip2-asn"
+      - "/GeoLite2-ASN-Test.mmdb"
+      - "-bind"
+      - ":8000"
+      - "-tls-bind"
+      - ":8001"
+      - "-tls-crt"
+      - "/server.pem"
+      - "-tls-key"
+      - "/server.key"
+      - "-trusted-header"
+      - "X-Real-IP"
+      - "-enable-secure-headers"
+      - "-enable-http3"
+      - "-resolver"
+      - "/resolver.yml"
+    volumes:
+      - ./GeoIP2-City-Test.mmdb:/GeoIP2-City-Test.mmdb
+      - ./GeoLite2-ASN-Test.mmdb:/GeoLite2-ASN-Test.mmdb
+      - ./server.pem:/server.pem
+      - ./server.key:/server.key
+      - ./resolver.yml:/resolver.yml

test/resolver.yml

@@ -0,0 +1,10 @@
+---
+domain: dns.example.com
+redirect_port: ":8000"
+resource_records:
+  - "1800 IN SOA xns.example.com. hostmaster.example.com. 1 10000 2400 604800 1800"
+  - "3600 IN NS xns.example.com."
+ipv4:
+  - "127.0.0.2"
+ipv6:
+  - "aaa:aaa:aaa:aaaa::1"