create dns.keiu.net

docker-compose.yml

@@ -35,6 +35,13 @@ services:
     volumes:
       - postgres_tmp:/var/run/postgresql
       - postgres_data:/var/lib/postgresql/data
+  dns.keiu.net:
+    image: coredns/coredns:1.8.4
+    restart: unless-stopped
+    expose: ["443"]
+    volumes:
+      - ./etc/coredns/Corefile:/Corefile
+      - caddy_data:/var/lib/caddy/data
 volumes:
   caddy_data:
   caddy_config:

etc/caddy/Caddyfile

@@ -7,3 +7,6 @@ www.keiu.net {
 minicharge.keiu.net {
 	reverse_proxy unix//tmp/minicharge/miniflux.sock
 }
+dns.keiu.net {
+	reverse_proxy https://dns.keiu.net
+}

etc/coredns/Corefile

@@ -0,0 +1,4 @@
+https://. {
+	tls /var/lib/caddy/data/caddy/certificates/acme-v02.api.letsencrypt.org-directory/dns.keiu.net/dns.keiu.net.crt /var/lib/caddy/data/caddy/certificates/acme-v02.api.letsencrypt.org-directory/dns.keiu.net/dns.keiu.net.key
+	forward . /etc/resolv.conf
+}