Add VM DNS IPv6

The default DNS server address is supposed to be used by Libre En
Communs for the deployed VM.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

Makefile.am

@@ -43,6 +43,7 @@ guix-commit.txt: Makefile
 		s#VM_IPV4_GATEWAY#$(VM_IPV4_GATEWAY)#g ; \
 		s#VM_IPV6_GATEWAY#$(VM_IPV4_GATEWAY)#g ; \
 		s#VM_IPV4_DNS#$(VM_IPV4_DNS)#g ; \
+		s#VM_IPV6_DNS#$(VM_IPV6_DNS)#g ; \
 		s#VM_SSH_PUB_KEY#$(VM_SSH_PUB_KEY)#g" $< > $@
 
 %.sh: %.sh.tmpl guix-commit.txt Makefile

configure.ac

@@ -30,6 +30,7 @@ AC_SUBST([VM_IPV6_ADDRESS], [])
 AC_SUBST([VM_IPV4_GATEWAY], [])
 AC_SUBST([VM_IPV6_GATEWAY], [])
 AC_SUBST([VM_IPV4_DNS], [])
+AC_SUBST([VM_IPV6_DNS], [])
 AC_SUBST([VM_SSH_PUB_KEY], [])
 
 AC_ARG_WITH([domain],
@@ -75,10 +76,15 @@ AC_ARG_WITH([vm-ipv4-dns],
   [VM_IPV4_DNS=$withval],
   [VM_IPV4_DNS="192.168.0.1"])
 
+AC_ARG_WITH([vm-ipv6-dns],
+  [AS_HELP_STRING([--with-vm-ipv6-dns=VM_IPV6_DNS], [Use custom VM
+  IPv6 dns address. (default=2001:910:1021::1)])],
+  [VM_IPV6_DNS=$withval],
+  [VM_IPV6_DNS="2001:910:1021::1"])
+
 AC_ARG_WITH([vm-ssh-public-key],
   [AS_HELP_STRING([--with-ssh-vm-public-key=VM_SSH_PUB_KEY], [Use custom VM
   SSH public key for use with 'guix deploy'. (default=\
-
 ssh-ed25519\
  AAAAC3NzaC1lZDI1NTE5AAAAIEjLYbJ+47MTte960IbOUTRzOD012ewt1IZgOOc+NqDa)])],
   [VM_SSH_PUB_KEY=$withval],
@@ -101,4 +107,5 @@ echo "  DNS: $VM_IPV4_DNS"
 echo "- VM IPv6 settings:"
 echo "  address: $VM_IPV6_ADDRESS"
 echo "  gateway: $VM_IPV6_GATEWAY"
+echo "  DNS: $VM_IPV6_DNS"
 echo "- VM SSH public key: $VM_SSH_PUB_KEY"

mumble-vm-system.scm.tmpl

@@ -197,7 +197,7 @@ https://DOMAIN/
 		       (network-route
                         (destination "default")
                         (gateway "VM_IPV6_GATEWAY"))))
-         (name-servers '("VM_IPV4_DNS")))))
+         (name-servers (list "VM_IPV4_DNS" "VM_IPV6_DNS")))))
       ;; Nginx
       (service
        nginx-service-type