Make the VM IPv4 configurable

The default IP 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

@@ -38,6 +38,7 @@ guix-commit.txt: Makefile
 	sed \
 		"s#DOMAIN#$(DOMAIN)#g ; \
 		s#LETSENCRYPT_EMAIL#$(LETSENCRYPT_EMAIL)#g ; \
+		s#VM_IPV4_ADDRESS#$(VM_IPV4_ADDRESS)#g ; \
 		s#VM_SSH_PUB_KEY#$(VM_SSH_PUB_KEY)#g" $< > $@
 
 %.sh: %.sh.tmpl guix-commit.txt Makefile

configure.ac

@@ -25,6 +25,7 @@ AC_CHECK_PROG([SED], [sed], [sed])
 
 AC_SUBST([DOMAIN], [])
 AC_SUBST([LETSENCRYPT_EMAIL], [])
+AC_SUBST([VM_IPV4_ADDRESS], [])
 AC_SUBST([VM_SSH_PUB_KEY], [])
 
 AC_ARG_WITH([domain],
@@ -40,6 +41,12 @@ AC_ARG_WITH([letsencrypt-email],
   [LETSENCRYPT_EMAIL=$withval],
   [LETSENCRYPT_EMAIL=cominfra@a-lec.org])
 
+AC_ARG_WITH([vm-ipv4-address],
+  [AS_HELP_STRING([--with-vm-ipv4-address=VM_IPV4_ADDRESS], [Use custom VM
+  IPv4 address. (default=192.168.1.117/24)])],
+  [VM_IPV4_ADDRESS=$withval],
+  [VM_IPV4_ADDRESS="192.168.1.117/24"])
+
 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=\
@@ -58,4 +65,5 @@ echo "Configuration options:"
 echo "======================"
 echo "- Domain: $DOMAIN"
 echo "- Let's Encrypt email: $LETSENCRYPT_EMAIL"
+echo "- VM IPv4 address: $VM_IPV4_ADDRESS"
 echo "- VM SSH public key: $VM_SSH_PUB_KEY"

mumble-vm-system.scm.tmpl

@@ -187,7 +187,7 @@ https://DOMAIN/
         (static-networking
          (addresses (list (network-address
                            (device "eth0")
-                           (value "192.168.10.37/24"))))
+                           (value "VM_IPV4_ADDRESS"))))
          (routes (list (network-route
                         (destination "default")
                         (gateway "192.168.10.1"))))